This document outlines specifications for precast concrete coping blocks. It specifies requirements for materials used in manufacturing coping blocks such as cement, aggregates, additives, and concrete strength. It also provides dimensions and tolerances for the cross-section and length of coping blocks. The specifications are intended to ensure coping blocks effectively prevent water penetration, direct water away from walls, resist displacement forces, allow for movement, and provide durability.
This document provides specifications for precast concrete kerbs, channels, edgings, quadrants, and gutter aprons. It outlines materials requirements including cement, aggregates, and concrete strength. It describes standard section dimensions and tolerances. Finish and color can be specified by the purchaser, with natural being default. The document aims to incorporate revisions from updated related standards to align with current Indian precast concrete industry practices.
The document provides specifications for an apparatus used to measure the length change of hardened cement paste, mortar, and concrete. It describes the construction, dimensions, materials, and markings required for a length comparator, which uses a micrometer to measure the change in length of specimens against a reference bar. The length comparator consists of an adjustable frame that holds either a screw or dial micrometer and allows measurement of specimens of different lengths.
This document is the Indian Standard Code of Practice for Prestressed Concrete from 1980. It provides terminology, materials requirements, design considerations, and structural design guidelines for prestressed concrete according to the limit state method. Some key changes from the previous version include introducing concepts of limit state design, provisions for partial prestress, revising shear and torsion design recommendations, and detailing durability requirements. The code aims to unify prestressed concrete design provisions with those for reinforced concrete where applicable.
This document provides the specification for cement concrete flooring tiles in India. It outlines the various types of tiles covered (plain cement, plain colored, terrazzo), classes based on duty (general purpose, heavy duty), materials used, dimensions, tolerances, testing methods, and other quality requirements. The revision updates certain provisions based on experience and comments received, including allowing a larger wearing layer thickness and modifying the abrasion resistance test method. It aims to improve quality while keeping requirements relevant to indigenous manufacturers.
This document is the Indian Standard Specification for Mild Steel and Medium Tensile Steel Bars and Hard-Drawn Steel Wire for Concrete Reinforcement. It outlines requirements for mild steel and medium tensile steel reinforcement bars in round and square sections. The standard covers physical and mechanical properties of the bars, methods for testing, welding requirements, and provides definitions for key terminology. It aims to standardize specifications for reinforcement bars used in concrete structures in India.
This document outlines specifications for reinforced concrete dust bins in India, including:
- Dimensions and reinforcement requirements for circular and square bins of various sizes
- Minimum concrete thicknesses and reinforcement based on bin size
- Door, lid, and drainage hole requirements
- Marking information to be included on each bin
The specifications are intended to standardize dust bin construction across municipalities and organizations in India. Precise dimensions, materials, and construction details are provided to guide manufacturers.
This document provides the code of practice for external cement concrete facings (Part II). It outlines the necessary information, materials, design considerations, and types of facings and attachment methods for concrete facing work. Some key points include:
- Precast concrete facing blocks must conform to IS 2185-1962 and have special treatment for durability, color, and surface texture. Common facing slab size is 60x40x3 cm.
- Materials for cramps and metal angle supports must resist corrosion. Mortar materials include cement, sand, lime, and surkhi.
- Structural design must consider wind loads per IS 875-1964 and stresses from facing weight.
- There are two
This document provides design tables for concrete structures used to store liquids. It includes tables for moment coefficients, shear coefficients, and other structural design values for rectangular and cylindrical concrete tanks. The tables are intended to aid engineers in quickly designing these types of structures. Rectangular tank tables cover individual wall panels and continuous walls, while cylindrical tank tables are also provided. Considerations for underground tanks subjected to earth pressures are discussed.
This document provides specifications for precast concrete kerbs, channels, edgings, quadrants, and gutter aprons. It outlines materials requirements including cement, aggregates, and concrete strength. It describes standard section dimensions and tolerances. Finish and color can be specified by the purchaser, with natural being default. The document aims to incorporate revisions from updated related standards to align with current Indian precast concrete industry practices.
The document provides specifications for an apparatus used to measure the length change of hardened cement paste, mortar, and concrete. It describes the construction, dimensions, materials, and markings required for a length comparator, which uses a micrometer to measure the change in length of specimens against a reference bar. The length comparator consists of an adjustable frame that holds either a screw or dial micrometer and allows measurement of specimens of different lengths.
This document is the Indian Standard Code of Practice for Prestressed Concrete from 1980. It provides terminology, materials requirements, design considerations, and structural design guidelines for prestressed concrete according to the limit state method. Some key changes from the previous version include introducing concepts of limit state design, provisions for partial prestress, revising shear and torsion design recommendations, and detailing durability requirements. The code aims to unify prestressed concrete design provisions with those for reinforced concrete where applicable.
This document provides the specification for cement concrete flooring tiles in India. It outlines the various types of tiles covered (plain cement, plain colored, terrazzo), classes based on duty (general purpose, heavy duty), materials used, dimensions, tolerances, testing methods, and other quality requirements. The revision updates certain provisions based on experience and comments received, including allowing a larger wearing layer thickness and modifying the abrasion resistance test method. It aims to improve quality while keeping requirements relevant to indigenous manufacturers.
This document is the Indian Standard Specification for Mild Steel and Medium Tensile Steel Bars and Hard-Drawn Steel Wire for Concrete Reinforcement. It outlines requirements for mild steel and medium tensile steel reinforcement bars in round and square sections. The standard covers physical and mechanical properties of the bars, methods for testing, welding requirements, and provides definitions for key terminology. It aims to standardize specifications for reinforcement bars used in concrete structures in India.
This document outlines specifications for reinforced concrete dust bins in India, including:
- Dimensions and reinforcement requirements for circular and square bins of various sizes
- Minimum concrete thicknesses and reinforcement based on bin size
- Door, lid, and drainage hole requirements
- Marking information to be included on each bin
The specifications are intended to standardize dust bin construction across municipalities and organizations in India. Precise dimensions, materials, and construction details are provided to guide manufacturers.
This document provides the code of practice for external cement concrete facings (Part II). It outlines the necessary information, materials, design considerations, and types of facings and attachment methods for concrete facing work. Some key points include:
- Precast concrete facing blocks must conform to IS 2185-1962 and have special treatment for durability, color, and surface texture. Common facing slab size is 60x40x3 cm.
- Materials for cramps and metal angle supports must resist corrosion. Mortar materials include cement, sand, lime, and surkhi.
- Structural design must consider wind loads per IS 875-1964 and stresses from facing weight.
- There are two
This document provides design tables for concrete structures used to store liquids. It includes tables for moment coefficients, shear coefficients, and other structural design values for rectangular and cylindrical concrete tanks. The tables are intended to aid engineers in quickly designing these types of structures. Rectangular tank tables cover individual wall panels and continuous walls, while cylindrical tank tables are also provided. Considerations for underground tanks subjected to earth pressures are discussed.
This document outlines standards for sampling aggregates used in concrete. It describes dividing shipments into sub-lots and obtaining gross samples from each sub-lot. The size of gross samples depends on the maximum aggregate size, ranging from 10-175 kg. Increments of at least 1 kg each are taken at regular intervals from conveyors, transportation units during loading/unloading, or by sectional sampling from loaded units. The increments from each sub-lot are combined into a gross sample.
This document provides guidelines for designing structures to withstand snow loads in parts of India that experience snowfall. It defines key terms related to snow loads, outlines methods for calculating minimum design snow loads on roofs based on ground snow load and shape coefficients, and provides shape coefficients for different common roof types and configurations. The coefficients account for factors like roof slope, height, and potential snow drifting from wind. Ice loads on overhead wires are also addressed.
This document provides requirements for batch type concrete mixers, including:
- Sizes of mixers range from 100 to 1000 liters for tilting, non-tilting, and reversing types.
- Drum design specifications include minimum ratios of drum volume to mixer size and material thickness requirements.
- Water systems must meet capacity and accuracy standards to measure and deliver water to mixers above 290 liters in size.
This document outlines Indian Standard IS: 875 (Part 2) - 1987 regarding imposed loads for buildings and structures. It provides terminology, specifies minimum imposed loads on floors and roofs for different occupancies, and addresses other loading considerations like impact, vibration, parapets, and balustrades. The standard was revised to rationalize imposed load values based on recent studies and foreign standards, allow for a 50% reduction in loads for multi-story column design, and require posting of floor load capacities.
This document is the Indian Standard for the method of measurement of building and civil engineering works, specifically part XI which covers paving, floor finishes, dado and skirting. It provides definitions and guidelines for accurately measuring and describing various paving, flooring and finishing items. This includes measuring materials, dimensions, cuttings, special features and more. The standard aims to promote uniformity in measurement practices across different organizations for estimation, execution and payment of construction projects.
This document provides the code of practice for general construction of plain and reinforced concrete for dams and other massive structures in India. It covers materials, concrete mix design, placement, curing, formwork, joints, and testing. The code aims to ensure durability, strength, impermeability and uniformity of concrete structures. It establishes requirements for cement, aggregates, water, admixtures and reinforcement to be used. It also provides guidelines for mixing, placing, compacting, curing concrete and constructing joints.
This document outlines testing procedures for evaluating the strength, deformation, and cracking of autoclaved cellular concrete flexural members under short duration bending loads. Key points:
- Test specimens should be full-size structural members to be used in construction.
- Members are simply supported and loaded at third points using steel plates to distribute the load evenly.
- Loads, deflections at mid-span, strains, and crack widths are measured.
- Members are loaded until cracking occurs or a prescribed load is reached to evaluate strength, deformation, and cracking behavior under short term bending loads.
This document provides details on the design and construction of floors and roofs using precast reinforced or prestressed concrete ribbed or cored slab units. It specifies dimensions for the precast units, including widths up to 3000mm for ribbed units and 2100mm for cored units. It also provides requirements for material strengths, structural design considerations, and loads to be accounted for in design according to other relevant Indian Standards.
This document provides the specification for reinforced concrete fence posts according to Indian Standard IS:4996-1984. It outlines the materials, manufacturing process, shape and dimensions, and fixing of fencing wires for reinforced concrete fence posts. Some key points include:
- Cement, water, aggregates and reinforcement materials must meet standards specified.
- Posts are to be manufactured through mixing, placing and compacting concrete to be dense and free of voids.
- Reinforcement is to be properly positioned and anchored with minimum concrete cover requirements.
- Posts must cure for a minimum of 7 days and achieve a strength threshold before handling.
- Dimensions and tolerances are provided, with recommendations for line, strainer
This document provides the specifications for precast reinforced concrete street lighting poles. It outlines the materials, design considerations, testing requirements and more. Some key points:
- Poles must be a minimum of 5.2m in length, with mounting heights of at least 4m and planting depths of at least 1.2m.
- Concrete grade shall be at minimum M20. Reinforcement can be mild steel, medium tensile steel or deformed steel bars.
- Poles shall be designed to resist a maximum bending moment from loads like wind pressure and the weight of fixtures applied 600mm below the light source.
- Testing includes determining the ultimate transverse load at which the pole fails under a load
This document provides the specifications for concrete porous pipes used for under drainage. It outlines the materials, shapes and dimensions, manufacturing requirements, and testing procedures for such pipes. Key points include:
- Cement must conform to Indian Standards IS 269 or IS 455, or high alumina cement if required. Aggregates must pass a 20mm sieve and be retained on a 4.75mm sieve.
- Pipes can have uniform diameters and thicknesses with butt ends, or rebated/ogee ends for joints. Dimensions and tolerances are provided in tables.
- Manufacturing must result in accurate dimensions. Non-porous inverts may be included.
- Tests include a load
This document provides a code of practice for the construction of autoclaved cellular concrete block masonry. It outlines materials and design considerations for constructing load-bearing and non-load bearing walls using these blocks. The document discusses block requirements, mortar mixes, wall thickness, bracing, and modular coordination. It aims to help builders properly use this type of masonry and ensure structural safety and avoidance of cracks.
This document provides the specification for precast reinforced concrete door and window frames. It outlines the requirements for the shape and dimensions of frames, acceptable materials, manufacturing process, and curing. Frames can be single-piece or assembled from separate vertical and horizontal members. Reinforcement is required and specifications are provided for concrete mix design, aggregates, and curing. Tolerances and options for decorative finishes are also included. The specification is intended to provide guidance for manufacturers and users of precast concrete door and window frames.
The document is an Indian Standard specification for hot applied sealing compounds for joints in concrete structures. It provides:
- An overview of the specification's scope and purpose in summarizing the key properties required of sealing compounds.
- Details on the physical requirements and test methods for two grades (A and B) of sealing compounds. Grade B provides additional fuel resistance.
- Procedures for sampling, marking, and several test methods appendixes including pour point, flow, and aviation fuel resistance tests.
This document provides standards for hollow and solid lightweight concrete blocks used in construction. It specifies:
1) Two grades (A and B) for load-bearing blocks based on intended use and weather protection.
2) Nominal dimensions for blocks ranging from 100-600mm in length, 50-300mm in width, and 100-200mm in height.
3) Tolerances of +/-5mm for length and +/-3mm for height and width.
4) Requirements for block density, compressive strength, water absorption, and drying shrinkage that vary based on grade.
This document is the Indian Standard specification for coarse and fine aggregates from natural sources for use in concrete. It outlines various requirements for aggregates including limits on deleterious materials, aggregate crushing value, impact value, abrasion value, and soundness. It defines terms related to aggregates and specifies four grading zones for fine aggregates of different particle sizes. The standard is intended to ensure aggregates are suitable for producing durable concrete structures.
This document is the Indian Standard specification for coarse and fine aggregates from natural sources for use in concrete. It outlines the requirements and limits for quality parameters like deleterious materials, aggregate crushing value, impact value, abrasion value and soundness. It defines terms related to aggregates and specifies four grading zones for fine aggregates of progressively finer sizes. The standard is intended to cover aggregates commonly available in India for general structural and mass concrete construction.
This document is the Indian Standard Specification for Concrete Masonry Units Part I: Hollow and Solid Concrete Blocks. It outlines specifications for the production of hollow and solid concrete blocks used in load-bearing and non-load-bearing walls. The standard specifies dimensions, tolerances, classifications based on density and compressive strength, and physical properties for the blocks. It provides requirements for hollow and solid concrete blocks to ensure quality, durability and structural integrity in masonry construction.
This document provides a code of practice for laying concrete pipes. It includes methods for calculating loads on pipes according to installation conditions and provides corresponding load factors. The purpose is to relate the loads on concrete pipes installed under various conditions to the test strength of the pipe, through appropriate load factors. The document defines key terms, outlines symbols used in calculations, and describes methods to calculate vertical loads on pipes from earth fill material, concentrated loads, and distributed loads. It is intended to be used with other standards for concrete pipes to help ensure pipes are not subjected to loads exceeding their design strength.
The document provides specifications for precast prestressed concrete street lighting poles. It outlines requirements for materials, design, testing, and other technical details. Key points include:
- It specifies requirements for cement, aggregates, reinforcement, concrete, and admixtures to be used in manufacturing the poles.
- Design specifications include minimum pole length, depth of planting, distances from luminaire to light source, and standard outreach lengths. Poles must be designed not to fail due to compression of concrete.
- Technical details covered include tolerances on dimensions, sampling and inspection procedures, marking requirements, and other quality control aspects.
This document outlines general requirements for the design and construction of concrete structures intended for liquid storage. It establishes standards for concrete structures storing liquids in India. Requirements specific to reinforced concrete structures are covered in Part II of the code. The code does not address structures for storing hot liquids, liquids of low viscosity/high penetration, or non-aqueous liquids that could chemically attack concrete. Materials requirements refer to standards IS: 456-1964 and IS: 1343-1960.
This document provides the specifications for plain hard drawn steel wire intended for use in prestressed concrete. It outlines the following key points:
- The wire shall be cold drawn from steel produced via various processes to contain less than 0.05% sulfur and phosphorus.
- Nominal diameters shall be 3.0 mm, 4.0 mm, or 5.0 mm within specified tolerances.
- The wire must meet minimum tensile strength requirements and have a proof stress of at least 75% of the tensile strength.
- It must pass reverse bend tests without fracturing to demonstrate adequate ductility.
The document also describes manufacturing requirements, permissible defects, testing methods and sampling procedures to
This document outlines standards for sampling aggregates used in concrete. It describes dividing shipments into sub-lots and obtaining gross samples from each sub-lot. The size of gross samples depends on the maximum aggregate size, ranging from 10-175 kg. Increments of at least 1 kg each are taken at regular intervals from conveyors, transportation units during loading/unloading, or by sectional sampling from loaded units. The increments from each sub-lot are combined into a gross sample.
This document provides guidelines for designing structures to withstand snow loads in parts of India that experience snowfall. It defines key terms related to snow loads, outlines methods for calculating minimum design snow loads on roofs based on ground snow load and shape coefficients, and provides shape coefficients for different common roof types and configurations. The coefficients account for factors like roof slope, height, and potential snow drifting from wind. Ice loads on overhead wires are also addressed.
This document provides requirements for batch type concrete mixers, including:
- Sizes of mixers range from 100 to 1000 liters for tilting, non-tilting, and reversing types.
- Drum design specifications include minimum ratios of drum volume to mixer size and material thickness requirements.
- Water systems must meet capacity and accuracy standards to measure and deliver water to mixers above 290 liters in size.
This document outlines Indian Standard IS: 875 (Part 2) - 1987 regarding imposed loads for buildings and structures. It provides terminology, specifies minimum imposed loads on floors and roofs for different occupancies, and addresses other loading considerations like impact, vibration, parapets, and balustrades. The standard was revised to rationalize imposed load values based on recent studies and foreign standards, allow for a 50% reduction in loads for multi-story column design, and require posting of floor load capacities.
This document is the Indian Standard for the method of measurement of building and civil engineering works, specifically part XI which covers paving, floor finishes, dado and skirting. It provides definitions and guidelines for accurately measuring and describing various paving, flooring and finishing items. This includes measuring materials, dimensions, cuttings, special features and more. The standard aims to promote uniformity in measurement practices across different organizations for estimation, execution and payment of construction projects.
This document provides the code of practice for general construction of plain and reinforced concrete for dams and other massive structures in India. It covers materials, concrete mix design, placement, curing, formwork, joints, and testing. The code aims to ensure durability, strength, impermeability and uniformity of concrete structures. It establishes requirements for cement, aggregates, water, admixtures and reinforcement to be used. It also provides guidelines for mixing, placing, compacting, curing concrete and constructing joints.
This document outlines testing procedures for evaluating the strength, deformation, and cracking of autoclaved cellular concrete flexural members under short duration bending loads. Key points:
- Test specimens should be full-size structural members to be used in construction.
- Members are simply supported and loaded at third points using steel plates to distribute the load evenly.
- Loads, deflections at mid-span, strains, and crack widths are measured.
- Members are loaded until cracking occurs or a prescribed load is reached to evaluate strength, deformation, and cracking behavior under short term bending loads.
This document provides details on the design and construction of floors and roofs using precast reinforced or prestressed concrete ribbed or cored slab units. It specifies dimensions for the precast units, including widths up to 3000mm for ribbed units and 2100mm for cored units. It also provides requirements for material strengths, structural design considerations, and loads to be accounted for in design according to other relevant Indian Standards.
This document provides the specification for reinforced concrete fence posts according to Indian Standard IS:4996-1984. It outlines the materials, manufacturing process, shape and dimensions, and fixing of fencing wires for reinforced concrete fence posts. Some key points include:
- Cement, water, aggregates and reinforcement materials must meet standards specified.
- Posts are to be manufactured through mixing, placing and compacting concrete to be dense and free of voids.
- Reinforcement is to be properly positioned and anchored with minimum concrete cover requirements.
- Posts must cure for a minimum of 7 days and achieve a strength threshold before handling.
- Dimensions and tolerances are provided, with recommendations for line, strainer
This document provides the specifications for precast reinforced concrete street lighting poles. It outlines the materials, design considerations, testing requirements and more. Some key points:
- Poles must be a minimum of 5.2m in length, with mounting heights of at least 4m and planting depths of at least 1.2m.
- Concrete grade shall be at minimum M20. Reinforcement can be mild steel, medium tensile steel or deformed steel bars.
- Poles shall be designed to resist a maximum bending moment from loads like wind pressure and the weight of fixtures applied 600mm below the light source.
- Testing includes determining the ultimate transverse load at which the pole fails under a load
This document provides the specifications for concrete porous pipes used for under drainage. It outlines the materials, shapes and dimensions, manufacturing requirements, and testing procedures for such pipes. Key points include:
- Cement must conform to Indian Standards IS 269 or IS 455, or high alumina cement if required. Aggregates must pass a 20mm sieve and be retained on a 4.75mm sieve.
- Pipes can have uniform diameters and thicknesses with butt ends, or rebated/ogee ends for joints. Dimensions and tolerances are provided in tables.
- Manufacturing must result in accurate dimensions. Non-porous inverts may be included.
- Tests include a load
This document provides a code of practice for the construction of autoclaved cellular concrete block masonry. It outlines materials and design considerations for constructing load-bearing and non-load bearing walls using these blocks. The document discusses block requirements, mortar mixes, wall thickness, bracing, and modular coordination. It aims to help builders properly use this type of masonry and ensure structural safety and avoidance of cracks.
This document provides the specification for precast reinforced concrete door and window frames. It outlines the requirements for the shape and dimensions of frames, acceptable materials, manufacturing process, and curing. Frames can be single-piece or assembled from separate vertical and horizontal members. Reinforcement is required and specifications are provided for concrete mix design, aggregates, and curing. Tolerances and options for decorative finishes are also included. The specification is intended to provide guidance for manufacturers and users of precast concrete door and window frames.
The document is an Indian Standard specification for hot applied sealing compounds for joints in concrete structures. It provides:
- An overview of the specification's scope and purpose in summarizing the key properties required of sealing compounds.
- Details on the physical requirements and test methods for two grades (A and B) of sealing compounds. Grade B provides additional fuel resistance.
- Procedures for sampling, marking, and several test methods appendixes including pour point, flow, and aviation fuel resistance tests.
This document provides standards for hollow and solid lightweight concrete blocks used in construction. It specifies:
1) Two grades (A and B) for load-bearing blocks based on intended use and weather protection.
2) Nominal dimensions for blocks ranging from 100-600mm in length, 50-300mm in width, and 100-200mm in height.
3) Tolerances of +/-5mm for length and +/-3mm for height and width.
4) Requirements for block density, compressive strength, water absorption, and drying shrinkage that vary based on grade.
This document is the Indian Standard specification for coarse and fine aggregates from natural sources for use in concrete. It outlines various requirements for aggregates including limits on deleterious materials, aggregate crushing value, impact value, abrasion value, and soundness. It defines terms related to aggregates and specifies four grading zones for fine aggregates of different particle sizes. The standard is intended to ensure aggregates are suitable for producing durable concrete structures.
This document is the Indian Standard specification for coarse and fine aggregates from natural sources for use in concrete. It outlines the requirements and limits for quality parameters like deleterious materials, aggregate crushing value, impact value, abrasion value and soundness. It defines terms related to aggregates and specifies four grading zones for fine aggregates of progressively finer sizes. The standard is intended to cover aggregates commonly available in India for general structural and mass concrete construction.
This document is the Indian Standard Specification for Concrete Masonry Units Part I: Hollow and Solid Concrete Blocks. It outlines specifications for the production of hollow and solid concrete blocks used in load-bearing and non-load-bearing walls. The standard specifies dimensions, tolerances, classifications based on density and compressive strength, and physical properties for the blocks. It provides requirements for hollow and solid concrete blocks to ensure quality, durability and structural integrity in masonry construction.
This document provides a code of practice for laying concrete pipes. It includes methods for calculating loads on pipes according to installation conditions and provides corresponding load factors. The purpose is to relate the loads on concrete pipes installed under various conditions to the test strength of the pipe, through appropriate load factors. The document defines key terms, outlines symbols used in calculations, and describes methods to calculate vertical loads on pipes from earth fill material, concentrated loads, and distributed loads. It is intended to be used with other standards for concrete pipes to help ensure pipes are not subjected to loads exceeding their design strength.
The document provides specifications for precast prestressed concrete street lighting poles. It outlines requirements for materials, design, testing, and other technical details. Key points include:
- It specifies requirements for cement, aggregates, reinforcement, concrete, and admixtures to be used in manufacturing the poles.
- Design specifications include minimum pole length, depth of planting, distances from luminaire to light source, and standard outreach lengths. Poles must be designed not to fail due to compression of concrete.
- Technical details covered include tolerances on dimensions, sampling and inspection procedures, marking requirements, and other quality control aspects.
This document outlines general requirements for the design and construction of concrete structures intended for liquid storage. It establishes standards for concrete structures storing liquids in India. Requirements specific to reinforced concrete structures are covered in Part II of the code. The code does not address structures for storing hot liquids, liquids of low viscosity/high penetration, or non-aqueous liquids that could chemically attack concrete. Materials requirements refer to standards IS: 456-1964 and IS: 1343-1960.
This document provides the specifications for plain hard drawn steel wire intended for use in prestressed concrete. It outlines the following key points:
- The wire shall be cold drawn from steel produced via various processes to contain less than 0.05% sulfur and phosphorus.
- Nominal diameters shall be 3.0 mm, 4.0 mm, or 5.0 mm within specified tolerances.
- The wire must meet minimum tensile strength requirements and have a proof stress of at least 75% of the tensile strength.
- It must pass reverse bend tests without fracturing to demonstrate adequate ductility.
The document also describes manufacturing requirements, permissible defects, testing methods and sampling procedures to
This document provides standards for testing the strength of concrete in India. It outlines procedures for making and curing compression test specimens in a laboratory setting, including sampling materials, mixing, compacting, and curing the concrete specimens. It specifies that test specimens should be 150mm cubes or 150mm diameter cylinders for compressive strength testing. The document also references other Indian standards for materials used in concrete like cement, aggregates, and sieves.
This document provides the specification for high tensile steel bars used in prestressed concrete. It outlines the requirements for the manufacture, chemical composition, sizes, tolerances, physical properties, testing procedures, sampling methods, and criteria for conformity of the steel bars. The bars must be made through specific steel manufacturing processes and have certain chemical compositions. They are tested to ensure they meet the specified requirements for properties like tensile strength, proof stress, and elongation.
This document provides the specification for high tensile steel bars used in prestressed concrete. It outlines the requirements for the manufacture, chemical composition, sizes, tolerances, physical properties including tensile strength, proof stress and elongation. It also describes the testing methods for these properties, including tensile testing and constant strain relaxation testing. Finally, it specifies the sampling and criteria for conformity, delivery, inspection, and required testing facilities.
The document is an Indian Standard code of practice for installing joints in concrete pavements. It provides definitions for different types of joints and pavements. It outlines design considerations for the layout and details of transverse and longitudinal joints. It specifies requirements for materials used in joints like joint filler, sealing compounds, and dowel bars. It describes the purpose and details of transverse expansion joints, contraction joints, and construction joints. The code aims to provide guidance on installing joints to control cracking and allow for movement in concrete pavements.
The document is the Indian Standard Specification for High Strength Deformed Steel Bars and Wires for Concrete Reinforcement. It outlines the requirements and testing procedures for steel reinforcement bars in three strength grades (Fe 415, Fe 500, Fe 550). Key points include:
- The standard covers manufacturing process, chemical composition limits, mechanical properties, and surface characteristics/deformations required for adequate bond with concrete.
- Steel bars must meet requirements for carbon, sulfur, phosphorus and mechanical properties depending on the specified strength grade.
- Deformations on the bar surface are specified as a minimum projected rib area to ensure adequate bond capacity.
- Bars can be manufactured by hot rolling followed by optional cooling/cold working
This document provides the specification for concrete masonry units including hollow and solid concrete blocks. It defines key terms, specifies dimensions and tolerances for blocks, and classifies blocks into different grades based on their density and compressive strength. The standard aims to promote the use of concrete masonry in construction by specifying requirements for different types of blocks to allow for load-bearing and non-load-bearing walls as well as other applications.
28-5.21 Company Profile of Pyrmaid structural consultant.pptxBoopathi Yoganathan
Pyramid Structural Consultant provides structural design, building approval, and construction services. They have a team of experienced engineers and workers who use software like AutoCAD and STAAD to complete structural designs for RCC and steel buildings. Notable projects include the design of a G+1 residential building in Namakkal. They are located in Puduchatram, Namakkal and can be found on LinkedIn and Facebook.
This document provides a bonafide certificate for a project report on the study of mechanical properties of eco-friendly economic concrete. It certifies that the project was conducted by three students, M.Vineeth, Y.Boopathi, and P.Murali, in partial fulfillment of their Bachelor of Engineering degree from Kongu Engineering College. The project investigated replacing natural aggregates with steel slag aggregates and M-sand to produce more sustainable concrete. Tests were conducted to determine the compressive strength, split tensile strength, modulus of rupture, and modulus of elasticity of concrete mixes with varying replacement levels.
The document describes an experimental investigation into the properties of concrete with different replacement percentages of natural aggregates with manufactured sand and steel slag. The methodology involves collecting cement, fine aggregates (natural sand and m-sand), coarse aggregates, and steel slag. The mix design for M20 grade concrete is calculated and concrete specimens are cast. The specimens are cured and then tested to determine their mechanical properties. The results are compared to those of conventional concrete to evaluate the suitability of manufactured sand and steel slag as partial replacements for natural aggregates in concrete.
The document discusses two methods for mesh refinement - the p-method and h-method. The p-method increases the order of the polynomial used in the finite element model, allowing for more accurate results without changing the mesh. The h-method reduces the size of elements to create a finer mesh, better approximating the real solution in areas of high stress gradients. Both methods aim to improve the accuracy of finite element analysis results, with the p-method doing so without requiring changes to the mesh.
This document provides guidance on using epoxy injection to repair cracks in concrete structures. The method involves drilling holes along cracks, injecting epoxy under pressure, and allowing it to seep into the cracks. It can repair cracks as small as 0.002 inches. Epoxy injection requires skilled workers and specialized equipment. While it can effectively repair cracks temporarily, the underlying issues causing the cracks may remain if not addressed.
An embedded system is a dedicated computer system that performs specific tasks. An important application of embedded systems is anti-lock braking systems (ABS) in automobiles. ABS uses sensors and electronic control modules to monitor wheel speed and automatically modulate brake pressure to prevent wheel lockup and maintain steering control during emergency braking. By preventing skidding, ABS can help drivers stop more safely and shorten stopping distances on wet or slippery surfaces compared to standard brakes. ABS works by pulsing the brakes rapidly when it detects a wheel is about to lock up, which allows the wheel to continue turning and maintaining traction with the road.
This document discusses past earthquakes in India and retrofitting techniques for masonry structures. It summarizes the 2004 Indian Ocean earthquake and tsunami, which had a magnitude of 9.1-9.3 making it one of the largest ever recorded. Over 230,000 people were killed across 14 countries by the resulting tsunamis. The document then discusses failure modes of confined masonry walls and retrofitting techniques to improve seismic resistance, including adding horizontal reinforcement, improving wall density and tie columns. Key factors for seismic resistance of confined masonry structures are also summarized.
The document provides guidelines for selecting, splicing, installing, and protecting open cable ends for resistance-type measuring devices in concrete and masonry dams. It discusses cable specifications, approved splicing methods including vulcanized rubber splices, rubber sleeve covering, and self-bonding tape. It also covers cable and conduit selection, including choosing the proper conduit size based on the number and size of cables to be run. Proper installation techniques are outlined to protect cable runs within concrete structures.
This document provides information on an Indian Standard (IS) for a unified nomenclature of workmen for civil engineering. It was adopted in 1982 by the Indian Standards Institution Construction Management Sectional Committee. The standard aims to unify the different names used for workmen engaged in civil engineering works across India. It then lists the unified nomenclature for various types of workmen and for carts/animals commonly used in civil engineering works.
This document provides definitions for key terms related to concrete monolith structures used in port and harbour construction. It defines elements like the bottom plug, cutting edge, deck slab, dewatering, fascia wall, filling, kentledge, kerb, and monolith. A monolith is a large hollow rectangular or circular foundation sunk as an open caisson through various soil strata until reaching the desired founding level, at which point the bottom is plugged with concrete.
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2. In&in Standard
SPECIFICATION FOR
PRECAST CONCRETE COPING
( First Revision)
IS : 5751- 1984
BLOCKS
Cement and Concrete Sectional Committee, BDC 2
Chairman
DR H. c. VISVESVARAYA
Members
Representing
Cement Research Institute of India, New Delhi
ADDITIONAL DIRECTOR, STAN- Research, Designs & Standards Organization
DARDS ( B&S)
DEPUTY DIRECTOR, STAN-
( Ministry of Railways ), Lucknow
DARDS ( B&S ) ( A&male )
SHRI K. P. BANERJEE Larsen b Touhro Ltd, Bombay
SHRI HARISH N. MALANI ( Alternate )
SHRI S. K. BANERJEE
DE N. S. BHAL
National Test House? Calcutta
Stru~o;~~engineermg Research Centre ( CSIR ),
SHRI V. K. GHANEKAR ( Alternate )
SHRI S. P. C~AKRABOR~I
SHRI N. SHIVA~URU ( Alternate )
Roads Wing, Ministry of Shipping and Transport
CHIEE ENQINEER ( BD )
SHEI J. C. BASUR ( Alternate )
Beas Designs Organization, Nangal Township
CHIEF ENGINEER ( DESIGNS )
EXECUTIVE ENGINEER
Central Public Works Department, New Delhi
( D~sroNs 111 ) ( Alternate )
CHIEB ENGINEER ( RESEARCH )- Irrigation Department, Government of Punjab,
CUM-DIRECTOR Chandigarh
RESEARCH OFFICER ( IPRI ) ( Alternate )
DR S. K. CHOPRA
DR A. K. MULLICE (Alternate )
Cement Research Institute of India, New Delhi
DIRECTOR A. P. Engineering Research
Hyderabad
Laboratories,
DIRECTOR Central Soil I% Materials. Research Station,
New Delhi
‘DEPUTY DIRECTOR ( Alternate )
DIRECTOR ( C&MDD-1 ) Central Water Commission, New Delhi
DEPUTY DIRECTOR ( C&MDD-I ) ( Alternate )
SHRI T. A. E. D’Sa
SRRI N. C. DUQ~AL ( Alternote )
The Concrete Association of India, Bombay
( Continued on page 2 )
0 Copyright 1985
INDIAN STANDARDS INSTITUTION
This publication is protected under the Indian Copyright Act ( XIV of 1957) and
reproduction in whole or in part by any means except with written permission of the
publisher shall be deemed to be an infringement of copyright under the said Act
.I
3. IS : 5751- 1984
( Continuedfrom page 1 )
Members Representing
SHRI A. V. GOKAE Cement Controller ( Ministry of Industry ),
New Delhi
SHRI S. S. MIULANI ( Alternate )
&RI A. K. GUPTA Hyderabad Asbestos Cement Product Ltd,
Hyderabad
SHRI P. J. JAGUS The Associated Cement Companies Ltd, Bombay
SHRI M. R. VINAYAKA ( Alternate )
SHRI N. G. JOSHI Indian Hume Pipes Company Ltd, Bombay
SHEI S. R. KULKARNI M. N. Dastur & Co Pvt Ltd, Bombay
SHRI S. K. LAHA The Institution of Engineers ( India ), Calcutta
SHRI B. T. UNWALLA (Alternate)
SHRI G. K. MAJUXDAR Hindustan Prefab Ltd, New Delhi
SRRI H. S. PASRICHA ( Alfernate )
SHRI K. K. NA~BIAR In personal capacity ( ‘ Ramanalaya’ II First
Crescent Park Road, Gandhinagar, Adyar, Madras )
SHRI Y. R. PHULL Indian Roads Congress, New Delhi
SHRI Y. R. PHULL Central Road Research Institute ( CSIR ), New
Delhi
SHRI M.R. CHATTERJEE (Alternate I)
SHRI K. L. SETHI (Alternaie II )
DR MOHAN RAI Central Building Research Institute ( CSIR ),
Roorkee
DR S. S. REHSI (Alternate)
SHRI A. V. RAXANA Dalmia Cement ( Bharat ) Ltd, New Delhi
DR K. C. NARAN~ ( Alternate )
DE M. RAMAIAH Struc;araaayering Research Centre ( CSIR ),
DR A. G. MADHAVA RAO ( Alternate )
SHRI G. RANDAS Directorate General of Supplies and Disposals,
New Delhi
DR A. V. R. RAO National Buildings Organization, New Delhi
SHRI J. SEN GUPTA ( Alternate )
SHRI R. V. CEALAPATHI RAO Geological Survey of India, Calcutta
SHRI S. ROY ( Alternate )
SHRI T. N. S. RAO Gammon India Ltd, Bombay
SHRI S. A. REDDI ( Alternate )
SHRI ARJUN RIJHSI~~HANI Cement Corporation of India Ltd, New Delhi
SHRI C. S. SHARMA ( Alternate )
SHRI H. S. SATYANARAYANA Engineer-in-Chief’s Branch, Army Head-
quarters, New Delhi
SHRI V. R. KOTNIS ( Alternate )
SECRETARY Central Board of Irrigation and Power,
New Delhi
SHRI K. R. SAXENA ( Al&ate 1
SHRI K. A. SUBRAMANIAM The India Cement Ltd, Madras
SHRI P. S. RAYACHANDRAN ( Alternate )
SUPERINTENDING Enorxxxn Public Works Department, Government of
( DESIGNS ) Tamil Nadu, Madras
EXECUTIVE ENGINEER( SM&R
DIVISION ) ( Alternate )
( Continued on page 11 )
2
4. IS : 5751.1984
Indian Standard
SPECIFKATION FOR
PRECAST CONCRETE COPING BLOCKS
( First Revision )
0. FOREWORD
0.1 This Indian Standard ( First Revision ) was adopted by the Indian
Standards Institution on 30 April 1984, after the draft finalized by the
Cement and Concrete Sectional Committee had been approved by the
Civil Engineering Division Council.
0.2 Precast concrete coping blocks serve as the first line of defence against
the entry of moisture into hollow concrete block walls. The effectiveness
in keeping water out of walls depends entirely upon the way in which the
coping blocks are designed and constructed.
0.3 The functional requirements to be met by a coping system are as
follows:
4
b)
4
It should prevent downward penetration of water through the
coping system and damp-proof course should always be used;
It should direct water clear of the wall below;
It should resist lateral displacement by the forces likely to be
applied to it in the situation in which it is used. This may be
achieved either by its mass ( see 5.1 ) or mechanical means, for
example, the form of the coping, the clip type ( see 3.1 ), or the
use of cramps and dowels ( see 2.5 );
It should allow for thermal and moisture movements ( see 7.3 );
and
It should be durable. This can be achieved by selection of
materials for the coping system ( see 2 ),
While it may not always be possible to meet all these requirements
fully, this specification gives criteria by which coping blocks may be judged.
0.4 This standard was first published in 1969. The present revision has
been prepared with a view to incorporating the modifications found
necessary in the light of experience gained during the use of this standard
3
5. IS t 5751- 1984
and to align with the requirements of various related standards which have
been revised consequent to the publication of the earlier version of this
standard. In this revision the requirements in respect of aggregates have
also been modified.
0.5 For the purpose of deciding whether a particular requirement of this
standard is complied with, the final value, observed or calculated,
expressing the result of a test or analysis, shall be rounded off in
accordance with IS : 2-1960*. The number of significant places retained
in the rounded off value should be the same as that of the specified value
in this standard.
1. SCOPE
1.1 This standard covers the requirements for precast concrete coping
blocks, giving details of the materials for manufacture, workmanship,
functional repuirements and the essential dimensions to meet them
2. MATERIALS
2.1 Cement - The cement used shall be ordinary and low heat Portland
cement conforming IS : 269-19761 or rapid hardening Portland cement
conforming to IS : 8041-1978$ or Portland slag cement conforming to
IS : 455-1976§ or Portland pozzolana cement conforming to IS : 1489-
197611. Alternatively, if specified by the purchaser, white Portland cement
conforming to IS : 8042-19787 or supersulphated cement conforming to
IS : 6909-1973** or hydrophobic Portland cement conforming to IS : 8043-
1978tt may be used.
2.2 Aggregates - All aggregates shall comply with IS : 383-1970ff. The
aggregate crushing value, aggregate impact value and aggregate abrasion
value shall not exceed the corresponding requirements laid down in
IS : 383-1970$$ for concrete for non wearing surfaces. The aggregate
impact test shall be done only as an alternative test to aggregate
crushing test.
*Rules for rounding off numerical values ( revised).
+Specification for ordinary and low heat Portland cement ( U&I ret&ion ).
fSpecification for rapid hardening Portland cement ( jrst reuirion ).
§Specification for Portland slag cement ( third revision ).
/lSpecification for Portland pozzolana cement ( second revision ).
YSpecification for white Portland cement (jirrt revision ).
**Specification fot supersulphated cement (first reuision).
ttSpecification for hydrophobic Portland cement.
SSSpecification for coarse and fine aggregates from natural sources for concrete
( second revision ),
4
6. 1st 57511984
2.2.1 Alternatively, coarse aggregates, such as blastfurnace slag which
may be found suitable having regard to strength, durability and freedom
from harmful properties, may be used, but such aggregates shall not
contain more than one percent of sulphate and shall not absorb more than
10 percent of its own mass of water.
2.2.2 The aggregates shall not exceed 12.5 mm maximum nominal size.
2.3 Additives - Additives used in the manufacture may be:
a) pigments to colour the finished product, and/or
b) admixtures to improve the workability and impermeability of
concrete.
2.3.1 Where additivers are employed, they shall be used in such
proportions as to have no harmful effects on the setting, hardening and
durability of the concrete, t
2.4 Concrete - The concrete shall be of a quality not lower than M 20
grade as specified in 5.1 of IS : 456-1978*.
2.5 Cramps and Dowels - Cramps and dowels shall be of copper,
brass, bronze, corrosion resisting steel, or galvanized steel of the form and
dimensions agreed to between the manufacturer and the purchaser.
3. DIMENSIONS AND TOLERANCES
3.1 Dimensions of Cross Section - The form of the cross-section shall
be as agreed to between the purchaser and the supplier. The overall
width shall be determined by referring to the thickness of the wall to which
the coping is to be applied. The minimum dimensions of the cross-section
shall be those shown in Fig. 1 for clip type copings and in Fig. 2 for flat-
bottomed copings ( bed faces may be serrated or have bedding recesses ),
respectively.
3.2 Length - Unless otherwise specified, the length of coping blocks
shall be one metre.
3.3 Tolerances - Tolerances of f 3 mm are allowed on the dimensions
of the cross-sectional profile, and the differences between cross-sectional
dimensions of individual coping blocks of the same type shall be not
greater than half the specified tolerances. A tolerance of f 6 mm is
allowed on the specified length of each coping block.
*Code of practice for plain and reinforced concrete ( third revision ).
5
7. 6
--I WALL TfiICKNESS I---
All dimensions in millimetres.
F’IQ. 1 CLIP TYPE COPING
ANGLE OF WEATHERING
(OPTIONAL)
THROATING SHAPE
All dimensions in millimetres.
FIG. 2 FLAT-BOTTOMCOPING
4. SHAPE
4.1 Different shapes of coping blocks are shown in Fig. 3.
4.2 Coping blocks shall slope to the rear so as to reduce the wash of water
and accumulated dirt over the face of the wall.
as possible for rapid shedding of water.
The slope shall be as steep
8. STOPPEO EN0 ANGLE RETURN
3A SPLAYED COPINGS
HIPPED STOPPED END ANGLE RETURN
38 SADDLEBACK COPINGStTYPE I
HwPED STowED END (HANDED) ANGLE RETURN (HANDED)
3C SADDLEBACK COPINGS,TYPE 2
NOTE -The detailed dimensions to be in accordance with Fig. 1or 2
all dimensions to be agreed between the manufacturer and the purchaser. and over-
FICL 3 EXAMPLES OF CONCRETE COPINGS
7
9. IS I 5751 .’ 1984
5. MASS OF COPING BLOCK
Thii’mass is intended to guard against displacement by impact or
pressure of ladders or by normal wind conditions.
6. PRO&ION FOR CRAMPS I
6.1 Where copings are specified to be held down by means of cramps, holes
suitable to receive them shall be provided, at positions specified by the
purchaser, in those coping blocks which require to be fixed.
I
7. FIXING AND JOINTING
7.1 Provisions shall be made for jointing the ends of coping blocks by
means of dowels, cramps or joggled mortar joints.
7.2 When the coping block is specified to be dowelled, dowels complying
with 2.5 shall be provided at every joint.
7.3 Adequate provision for thermal and moisture movement shall be made
in the coping blocks, by flexible joints at appropriate intervals. Where
movement joints are provided in the structure below, they shall be
continued through the coping blocks.
7.4 Leaks through coping blocks occur through open joints. Permanent
water-tightness cannot be obtained in a straight-sided joint sealed with
any rigid type of mortar. For this reason, a suitable design of flashing of
non-corrodible material is sometimes adopted.
8. MANUFACTURE
8.1 Casting - The concrete shall be thoroughly compacted and this may
be assisted by mechanical tamping, vibration or by hydraulic pressure.
8.2 Maturing - Unless otherwise specified in contract or order, no
coping blocks shall be delivered until they have matured for 21 days after
curing for 7 days.
NOTE - This requirement is based on normal temperature and weather
conditions, and having regard to: (a) the desirability of the irreversible drying
shrinkage having first occurred, and (b) strength.
9. FINISH
9.1 The finish shall be that obtained by casting the block in roperly
designed moulds. Where these are of wood, they shall be o -closelyI?
jointed wrought timber and the faces of the block may be kept impriuted
:
8
10. IS t 5751 - 1984
with the slight grain of the wrought timber and the faces of their joints.
In addition, irrespective of the material used for the moulds, small
surface blemishes caused by entrapped air or water may be expected but
the exposed surfaces shall be plane, true and free from honey-combing or
other large blemishes.
10. WEATHERING
10.1 Top of the coping blocks shall be weathered. The angle of
weathering shall be that agreed to between the purchaser and the
manufacturer.
11. FITTINGS
11.1 Stopped ends, hipped stopped ends, stooled ends and right-angled
returns, shall be available to match the coping blocks. Other fittings shall
be provided by agreement between the purchaser and the supplier.
Examples are shown in Fig. 3.
12. MARKING
12.1 Each precast coping block may be clearly and permanently marked
with the following information:
a) Manufacturer’s name and trade-mark, if any;
b) Year of manufacture, if required by the purchaser; and
c) The grade of concrete assessed in accordance with 5.1 of IS : 456-
1978*.
12.1.1 Each coping block may also be marked with the IS1 Certification
Mark.
NOTE - The use of the IS1 Certification Mark is governed by the provisions of
the Indian Standards Institution ( Certification Marks ) Act and the Rules and
Regulations made thereunder. The IS1 Mark on products covered by an Indian
Standard conveys the assurance that they have been produced to comply with the
requirements of that standard under a well-defined system of inspection, testing and
quality control which is devised and supervised by IS1 and operated by the produ-
cer. IS1 marked products are also continuously checked by IS1 for conformity to
that standard as a further safeguard. Details of conditions under which a licence for
the use of the IS1 Certification Mark may be granted to manufacturers or processors,
may be obtained from the Indian Standards Institution.
13. SAMPLING AND CRITERIA FOR CONFORMITY
13.1 The method of selecting representative samples of materials and the
criteria for conformity shall be as given in 13.2 to 13.5.
*Code of practice for plain and reinforced concrete ( third rerision ).
9
11. IS : 5751 - 1984
13.2 Lot - In any consignment all the blocks of the same size and from
the same batch of manufacture shall be grouped together in groups of one
thousand coping blocks or less.
13.3 From each lot a sample of 24 coping blocks shall be selected
at random. All the 24 coping blocks shall be checked for dimensions as
indicated in 3 and shall be inspected for visual defects.
13.4 The number of coping blocks with dimensions outside the tolerance
limit add/or with visual defects among those inspected shall not be more
than 2.
13.5 The grade of concrete shall be assessed by 2%day compressive
strength test on cubes in accordance with 5.1 of IS : 456-1978*. The
quality of the concrete may also be assessed by compressive strength tests
on cube specimens cut out of precast concrete coping blocks when agreed
to between the purchaser and the manufacturer The strength requirements
shall be as given in Table 2 of IS : 456-1978* or a suitable minimum
strength value for the particular size of the cube to be cut out of the
precast concrete coping block may be agreed to between the purchaser
and the manufacturer.
*Code of practice for plain and reinforced concrete ( third revision ).
10
12. ( Continuedfrom page 2 )
Members Representing
SHRI L. SWAROOP Orissa Cement Ltd, New Delhi
SHRI D. S. BRANDARI ( Alternate )
SHRI G. RAXAN, Director General, IS1 ( Ex-Ojicio Member )
Director ( Civ Engg )
Secretary
SHRI N. C. BANDYOPADEYAY
Deputy Director ( Civ Engg ), IS1
Precast Concrete Products Subcommittee, BDC 2 : 9
Convener
SHRI G. K. MAJUMDA~ Hindustan Prefab Ltd, New Delhi
Members
DEPUTY DIRECTOR, STANDARDS Research Designs & Standards Organization,
(B&S) Lucknow
ASSISTANT DIRECTOR, STAN-
DARDS ( B&S-II ) ( Alternate I )
SHRI C. G. VITHAL RAO ( Alternate II )
DIRECTOR Central Soil and Materials Research Station,
New Delhi
DEPUTY DIRECTOR ( Alternate:)
SRRI 2. GEORQE Struc;;d~a~ineering Research Centre ( CSIR ),
DR A. G. MADHAVA RAO ( Alternate )
SHRI V. G. GOICHALE
SHRI B. K. JINDAL
Bombay Chemicals Pvt Ltd, Bombay
Centr;trrk%~ldmg Research Institute ( CSIR ),
DR S. S. REHSI ( Alternate )
SHRI L. C. LA1 In personal capacity ( B/17, West End, New Delhi )
SHRI S. NAHAROY Eng$;;;z Construction Corporation Ltd,
SHRI A. RANAKRISHNA ( Alternate )
SHRI D. B. NAIK Engineer-in-Chief’s Branch, Army Headquarters,
New Delhi
SBRI SUCH SINQR ( Alternate )
SHRI K. K. NAMBIAR In personal capacity ( ‘ Rananalya’ II First Crescent
SHRI B. V. B. PA1
Park Road, Gandhinagar, Adyar, Madras )
SHRI P. SRINIVASAN ( Alternate )
The Concrete Association of India, Bombay
SHRI H. S. PASRICHA Hindustan Prefab Ltd, New Delhi
DR N. RAORAVENDRA Cement Research Institute of India, New Delhi
SHRI V. RAMALINQAIU Neyveli Lignite Corporation Ltd, Neyveli
SHRI K. A. RAMABHADRAN ( Alternate )
( Continued on page 12 )
13. fS : 57551.- 1984
( Continuedfrompage 11 )
Members
DR A. V. R. RAO
Representing
SHRI J. SEX GU~TA ( Alternate)
National Buildings Organization, New Delhi
SHRI B. G. SEXIRKE
SHRI R. T. PAWAR ( Allernale )
B. G. Shirke & Co Ltd, Pune
SHRI C. N. SRINIVASAN M/s C. R. Narayana Rao, Madras
SBRI C. N. RA~HAVENDRAN ( Alternnte )
SUPERINTENDINGENGINEER ( P&S )
PROJECT OFFICER I Alternate)
Tamil Nadu Housing Board, Madras
SUPERINTENDINU SURVEYOR ‘OF
WORKS ( NZ )
Central Public Works Department, New Delhi
SURVEYOR OF WORKS (NZ ) ( Alternate )
12