Application of non-autoclave aerated lightweight cellular concrete in modern construction
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How to apply non-autoclave aerated lightweight cellular concrete in today's construction, along with the advantages and disadvantages of it.
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Light concrete
This document describes high-strength lightweight cellular concrete, also called high-performance cellular concrete. It is made through a process that injects a foam solution into a cement mixture, creating microscopic air bubbles throughout the concrete. This results in a concrete that is much lighter in weight but can achieve compressive strengths comparable to regular concrete. It has benefits like better insulation, freeze-thaw resistance, and fire resistance. The document discusses the history of cellular concrete and how this new process allows for structural uses by controlling the concrete's density and strengths.
Light Weight Concrete- Group Study
Light Weight Concrete
Introduction
Types
Classification
Comparison
Process
Advantages
Disadvantages
Uses
Costing
casting of light weight concrete
This document presents a phase 2 project on lightweight concrete submitted by 5 civil engineering students. It defines lightweight concrete and discusses its types, advantages, durability, applications, mix design, and tests. Lightweight concrete has lower density than normal concrete and is made with lightweight aggregates. It offers benefits like reduced dead load, faster construction, and lower transportation costs. The document examines the durability and typical uses of lightweight concrete, provides steps for mix design, and notes that compression, split tensile, and slump tests were performed to determine the strength of lightweight concrete mixes containing expanded polystyrene spheres.
CRITICAL REVIEW ON STRUCTURAL LIGHT WEIGHT CONCRETE
Concrete is widely used material across the world for construction of large structures. Due
to increase in industrialization and development of urban areas, high volume of resources is
required which are available naturally. This means high volume of resources is used worldwide
for production of concrete. To reduce the use of such resources and to decrease the negative
impact on environment, the uses of industrial waste and artificial aggregates as a replacement
of natural aggregates are increasingly used. Another focus required in material research is to
reduce the concrete weight density so that the effective dead load and seismic loads can be
lowered. The paper attempts to review the literature and present a state of art in making
lightweight concrete as reported till now for structural application
CELLULAR LIGHT WEIGHT CONCRETE BLOCKS WITH DIFFERENT MIX PROPORTIONS
Burnt Clay Brick is the predominant construction material in the country. The CO2 emissions in the brick manufacture
process have been acknowledged as a significant factor to global warming. Now-a-days there are so many technologies
involved in the recent development of concrete. Cellular Lightweight Concrete (CLC) is one of the recent emerging technology
in making concrete. The usage of Cellular Light-weight Concrete (CLC) gives a prospective solution to building
construction industry along with environmental preservation. By using this type of concrete, we have found so many
advantages when compared to the burnt clay bricks.
Light weight concrete
This document discusses different types of concrete. It begins by explaining that concrete is composed of cement, fine aggregates like sand, and coarse aggregates mixed with water. It then describes several types of concrete including ordinary concrete, self-compacting concrete, reinforced cement concrete, precast concrete, prestressed concrete, and pervious concrete. For each type, it provides a brief definition and some of the key characteristics. The document focuses on explaining the composition and properties of different concretes used in construction.
Structural lightweight concrete
This document discusses structural lightweight concrete. It begins by defining lightweight concrete and noting its lighter weight compared to conventional concrete. It then discusses properties like compressive strength and water absorption tested at different densities, foam percentages, and water-cement ratios. Applications include construction, vessels, and roof decks. Advantages include reduced weight and transportation costs, while disadvantages include sensitivity to water and difficulty in placement. A case study examines the Wellington Stadium project in New Zealand, where lightweight concrete allowed rapid construction in a seismic area with poor foundation conditions.
Final betão leve de elevado desempenho high performance light weight concre...
And English and Portuguese presentation about HPLC
The file talk about them in mixed slides in English and Portuguese. Describing concrete and high performance concrete and the light weight high performance concrete
Recommended
Light concrete
This document describes high-strength lightweight cellular concrete, also called high-performance cellular concrete. It is made through a process that injects a foam solution into a cement mixture, creating microscopic air bubbles throughout the concrete. This results in a concrete that is much lighter in weight but can achieve compressive strengths comparable to regular concrete. It has benefits like better insulation, freeze-thaw resistance, and fire resistance. The document discusses the history of cellular concrete and how this new process allows for structural uses by controlling the concrete's density and strengths.
Light Weight Concrete- Group Study
Light Weight Concrete
Introduction
Types
Classification
Comparison
Process
Advantages
Disadvantages
Uses
Costing
casting of light weight concrete
This document presents a phase 2 project on lightweight concrete submitted by 5 civil engineering students. It defines lightweight concrete and discusses its types, advantages, durability, applications, mix design, and tests. Lightweight concrete has lower density than normal concrete and is made with lightweight aggregates. It offers benefits like reduced dead load, faster construction, and lower transportation costs. The document examines the durability and typical uses of lightweight concrete, provides steps for mix design, and notes that compression, split tensile, and slump tests were performed to determine the strength of lightweight concrete mixes containing expanded polystyrene spheres.
CRITICAL REVIEW ON STRUCTURAL LIGHT WEIGHT CONCRETE
Concrete is widely used material across the world for construction of large structures. Due
to increase in industrialization and development of urban areas, high volume of resources is
required which are available naturally. This means high volume of resources is used worldwide
for production of concrete. To reduce the use of such resources and to decrease the negative
impact on environment, the uses of industrial waste and artificial aggregates as a replacement
of natural aggregates are increasingly used. Another focus required in material research is to
reduce the concrete weight density so that the effective dead load and seismic loads can be
lowered. The paper attempts to review the literature and present a state of art in making
lightweight concrete as reported till now for structural application
CELLULAR LIGHT WEIGHT CONCRETE BLOCKS WITH DIFFERENT MIX PROPORTIONS
Burnt Clay Brick is the predominant construction material in the country. The CO2 emissions in the brick manufacture
process have been acknowledged as a significant factor to global warming. Now-a-days there are so many technologies
involved in the recent development of concrete. Cellular Lightweight Concrete (CLC) is one of the recent emerging technology
in making concrete. The usage of Cellular Light-weight Concrete (CLC) gives a prospective solution to building
construction industry along with environmental preservation. By using this type of concrete, we have found so many
advantages when compared to the burnt clay bricks.
Light weight concrete
This document discusses different types of concrete. It begins by explaining that concrete is composed of cement, fine aggregates like sand, and coarse aggregates mixed with water. It then describes several types of concrete including ordinary concrete, self-compacting concrete, reinforced cement concrete, precast concrete, prestressed concrete, and pervious concrete. For each type, it provides a brief definition and some of the key characteristics. The document focuses on explaining the composition and properties of different concretes used in construction.
Structural lightweight concrete
This document discusses structural lightweight concrete. It begins by defining lightweight concrete and noting its lighter weight compared to conventional concrete. It then discusses properties like compressive strength and water absorption tested at different densities, foam percentages, and water-cement ratios. Applications include construction, vessels, and roof decks. Advantages include reduced weight and transportation costs, while disadvantages include sensitivity to water and difficulty in placement. A case study examines the Wellington Stadium project in New Zealand, where lightweight concrete allowed rapid construction in a seismic area with poor foundation conditions.
Final betão leve de elevado desempenho high performance light weight concre...
And English and Portuguese presentation about HPLC
The file talk about them in mixed slides in English and Portuguese. Describing concrete and high performance concrete and the light weight high performance concrete
Lightweight and heavyweight concrete
The document discusses different types of lightweight and heavyweight concrete. It defines lightweight concrete as having a density less than 1850 kg/m3 and a compressive strength over 17 MPa. Lightweight concrete uses porous lightweight aggregates like expanded shale, clay or slate to reduce weight. Heavyweight concrete uses dense aggregates like barites or magnetite to increase density for radiation shielding. The document provides details on the composition, properties and uses of different types of lightweight and heavyweight concrete.
Light weight concrete
This document provides an overview of light weight concrete, including its definition, types of aggregates used, mix design, properties, applications, and advantages/disadvantages. Light weight concrete uses expanded aggregates that create an internal cellular structure, resulting in lower density than conventional concrete. It has benefits such as reduced dead load, faster construction, and lower transport costs. Common uses include structural elements, floor slabs, roof decks, and insulation. While offering weight savings, light weight concrete can be more difficult to place and finish than standard concrete.
Foam Concrete/Light Weight Concrete.
Lightweight concrete, also known as foam concrete or foamed concrete, is a cement-based material that is produced using a minimum of 20% foam to replace fine aggregate, resulting in a density of 400-1600 kg/m3. It has advantages over normal concrete such as lower weight, improved thermal insulation and fire resistance, cost savings, and easier construction. Some disadvantages include increased mixing time and difficulty in finishing due to its porous nature. Foam concrete has a variety of applications and has been used successfully in marine structures, bridges, and railway platforms.
Light weight concrete .....sajid aziz
The document discusses the preparation of lightweight concrete. It describes the group members, title, contents including introduction, raw materials like cement, rice husk ash, fly ash, and foaming agents. The document outlines advantages such as rapid construction, reduced transportation costs, lower overall weight saving on structural frames. Applications include use in roofs, floors, walls, posts and castings to reduce the dead load of concrete structures.
light weight concrete
Lightweight concrete, also known as autoclaved aerated concrete (AAC), is a construction material that is lighter than traditional concrete due to the inclusion of air pockets. It was invented in 1923 and contains aggregates smaller than sand, cement, and other binding agents. When mixed and cured, chemical reactions cause it to be 20% lighter than normal concrete while maintaining compressive strength. Lightweight concrete is used widely in construction due to benefits like reduced weight, insulation, durability, and lower environmental impact.
Light weight concrete
This document discusses different types of light weight concrete, including light weight aggregate concrete, aerated concrete, and no-fines concrete. Light weight concrete has lower density than normal concrete, ranging from 300-1850 kg/m3 compared to 2200-2600 kg/m3. It has advantages like reduced dead load, improved workability, and applications in pre-stressed concrete and high-rise buildings. The main methods to produce light weight concrete are using porous aggregates, incorporating air bubbles, or omitting fine aggregates. Properties depend on the type and density, with compressive strengths ranging from 0.3-40 MPa.
Advance structural concretes (BC)
This document provides information on structural light weight concrete. It defines light weight concrete as a special concrete that weighs less than conventional concrete due to using light weight coarse aggregates. These aggregates can be natural materials like pumice or artificial materials like clay that have been fired to develop a porous structure. Light weight concrete has densities between 1440-1840 kg/m3 compared to 2240-2400 kg/m3 for normal concrete. It is used to reduce the dead load of structures, allowing smaller structural elements like columns and footings. Light weight concrete also provides better strength-to-weight and fire resistance properties than normal concrete.
Special concrete in concrete technology
Lightweight concrete has a density between 300-1850 kg/m3, compressive strengths from 20-40 N/mm2, and better thermal insulation and sound absorption properties compared to normal concrete. It reduces structural dead loads, making it attractive for multi-story buildings.
Light wight concrete
Lightweight concrete has a lower density than normal concrete, ranging from 300-1850 kg/m3 compared to 2200-2600 kg/m3. There are three main types: lightweight aggregate concrete uses porous aggregates; aerated concrete is produced by incorporating air bubbles; and no-fines concrete omits fine aggregates. Lightweight concrete reduces building dead load, improves workability, has better insulation and durability, and allows for use of industrial wastes. Its lower density offers applications in construction elements like pre-stressed concrete and high-rise buildings.
Light weight concrete
Lightweight concrete has a lower density than ordinary concrete due to the use of lightweight aggregates. It has strengths between 7-40 MPa, improved workability, thermal insulation, and water absorption. Lightweight concrete exhibits higher moisture movement and fire resistance compared to ordinary concrete. It is used in prestressed concrete, high-rise buildings, and to reduce dead load. While more expensive, it allows for rapid, simple construction and reduced transportation costs.
Investigations on Properties of Light Weight Cinder Aggregate Concrete
This document summarizes an investigation into the properties of concrete made with cinder aggregate as a partial or full replacement for conventional aggregates. Cinder is a lightweight byproduct of steel manufacturing that can be used to create lighter weight concrete. Tests were conducted replacing granite coarse aggregate with 0-100% cinder aggregate, and river sand fine aggregate with 0-50% cinder powder. Results showed compressive strength was highest with 40% cinder coarse aggregate replacement, but strength generally decreased as replacement levels increased. Tensile strength also decreased with higher cinder replacement. Density of cinder concrete mixes was lower than conventional mixes. The study concluded cinder can be used to create lighter concrete, though strengths are sometimes reduced compared to conventional mixes.
Experimental Investigation of Floating slab Incorporated with Pumice stone an...
This experimental deals with floating concrete precast slab with addition of vermiculite and pumice. Buoyancy plays major role on floating objects. In order to design a floating concrete slab Light Weight Concrete (LWC) plays a prominent role in reducing the density and to increase the thermal insulation. Light weight concrete (LWC) is formed by Natural aggregate, synthetic light weight aggregate. Vermiculite is a light weight and cheap product because of its thermal resistance has become a valuable insulating material. The density of these concrete varies from 750 Kg/m³ to 2050 Kg/m³. Pumice is a natural graded light weight coarse aggregate which has a dry density of 1200 Kg/m³ to 1450 Kg/m. The light Weight Concrete (LWC) M20 using the light weight coarse aggregate as Pumice stone as a full replacement to 100%, light weight fine aggregate as Vermiculite as a replacement of fine aggregate to 75 %. The Cement (Ordinary Portland cement) is partially replaced by Fly Ash up to 50 % and some other mineral admixture are added which are Steel Fibre and Super plasticizer (SP 430) are added. An experimental work concludes in which the compression strength of conventional mix has higher strength and weight. Due to floating condition the specimen must have less density so, specific proportion has low density while comparing to other mix. Even though the mix 4 has low strength but it has low density and it is used in precast floating slab. The slab is designed to float above the datum line and with a load carrying capacity of 1.5 kN. The mix also yields on compressive and split tensile strength of 5.07 N/mm2 and 2.17 N/mm2.
The present day world is witnessing construction of very challenging and difficult civil engineering structures.
Researchers all over the world are attempting to develop low density or lightweight concrete by using different admixtures in concrete up to certain proportions.
This study deals with the development of Floating concrete by using lightweight aggregate (Pumice stone, Vermiculite) and Aluminium powder as an air entraining agent.
Module on light and heavy weight concrete
Lightweight concrete has lower density than normal weight concrete, ranging from 90-115 lb/ft3 compared to 140-150 lb/ft3. It uses lightweight aggregates that are expanded or porous, like shale, clay or slag. Lightweight concrete can be classified based on density and strength, including low density concrete for insulation, moderate strength concrete, and structural concrete. Structural lightweight concrete has compressive strengths over 17.0 MPa and is used in construction where weight needs to be reduced. It has benefits like high strength to weight ratio, thermal insulation, fire resistance, and ease of construction using prefabricated units.
CONCRETE
CONCRETE
CONSTITUENTS OF CONCRETE
LIGHTWEIGHT CONCRETE
ADVANTAGES
DISADVANTAGES
APPLICATIONS
PRINCIPLE TECHNIQUES BEHIND LIGHTWEIGHT CONCRETE
LIGHTWEIGHT AGGREGATE CONCRETE
PRODUCTION OF LIGHTWEIGHT AGGREGATE CONCRETE
CLASSIFICATION OF LIGHTWEIGHT AGGREGATE CONCRETE
NATURAL AGGREGATE
ARTIFICIAL AGGREGATE
LOW-DENSITY CONCRETES
STRUCTURAL LIGHTWEIGHT CONCRETE
MODERATE-STRENGTH LIGHTWEIGHT CONCRETE
PROPERTIES OF LIGHTWEIGHT AGGREGATE CONCRETE
AERATED OR FOAMED CONCRETE
MANUFACTURING OF FOAMED CONCRETE
PROPERTIES OF FOAMED CONCRETE
APPLICATIONS OF FOAMED CONCRETE
NO FINES CONCRETE
PROPERTIES NO FINES CONCRETE
APPLICATIONS NO FINES CONCRETE
HIGH DENSITY CONCRETE
Man-made (Synthetic) Aggregates
ADMIXTURE
High Strength Concrete
SPECIAL METHODS OF MAKING HIGH STRENGTH CONCRETE
Special Concrete - High End Out put Value for Materials
High value generally associated with High-Performance
What is High-Performance?
High-Early Strength Concrete
High-Strength Concrete
High-Durability Concrete
Self-Consolidating Concrete
Reactive Powder Concrete
lightweight concrete
This document defines and describes lightweight concrete. It discusses three main types of lightweight concrete: porous concrete, concrete without fine aggregate, and lightweight aggregate concrete.
Porous concrete contains air bubbles that make it lightweight. Concrete without fine aggregate uses only cement, water, and coarse aggregates. Lightweight aggregate concrete uses lightweight aggregates like pumice or expanded clay instead of regular aggregates.
The document outlines the characteristics and advantages of lightweight concrete, including better thermal and fire insulation, durability in various environments, lower water absorption, and acoustic properties. It also notes some disadvantages like increased sensitivity to water content and difficulty in placement and finishing.
Foam Concrete(properties&applications)
This document presents a project on the properties and applications of foam concrete. It was presented by two students from the Department of Civil Engineering at KUET. The document defines foam concrete as a cement-based slurry with at least 20% entrained foam. It discusses the materials and manufacturing process of foam concrete and describes its key properties like compressive strength, thermal conductivity, drying shrinkage and fire resistance which vary according to density. The document also outlines various applications of foam concrete in construction based on density and highlights its advantages like light weight and rapid construction as well as limitations. Finally, it discusses the potential of foam concrete in Bangladesh.
light weight aggregate.ppt
Lightweight concrete has a density of 300-1850 kg/m3 compared to 2200-2600 kg/m3 for normal concrete. It is made with lightweight aggregates which can be natural like pumice or artificial like expanded shale. Lightweight concrete has applications in structural and non-load bearing construction due to its strength while also providing benefits like reduced weight, improved insulation, and easier construction. Proper mix design is important due to the variable water absorption of aggregates.
Lightweight concrete
Lightweight concrete has a lower density than normal concrete, ranging from 300-1850 kg/m3. There are three main types: lightweight aggregate concrete uses expanded aggregates; aerated concrete is produced by incorporating air bubbles; and no-fines concrete omits fine aggregates. Lightweight concrete provides benefits like improved thermal insulation, soundproofing, and fire resistance compared to normal concrete.
Light Weight Block (CLC) Manufacturing Plant
Cellular Light Weight Concrete Blocks Machine- Manufacturers & Suppliers
Our proficient and dedicated professionals make the utmost use of these facilities and work round the clock with a client centric approach to meet the industrial requirements. These professionals are well versed and have updated knowledge on the latest technology which ensures hassle free and efficient procurement and storage. We have been highly benefited by our facilities, this being one of the reasons for establishing ourselves as a prominent organization.
www.clcblockmachine.in, www.clcplant.com
IRJET- A Review Paper on Light Weight Autoclave Aerated Concrete Block
This document provides a review of light weight autoclave aerated concrete blocks. It discusses the manufacturing process, which involves mixing raw materials like cement, water, fly ash, lime, and aluminum powder. The mixture is cured in an autoclave under high temperature and pressure to produce lightweight blocks containing 50-60% air. Tests showed the blocks have low water absorption, compressive strength of 3.78 N/mm2, and flexural strength of 0.69 N/mm2. AAC blocks offer benefits like lighter weight, lower costs, better seismic and fire performance than clay bricks. The document concludes AAC is a sustainable and eco-friendly building material.
FINAL PPT phase 2.pptx
This document summarizes a presentation on autoclaved aerated concrete blocks. It discusses the manufacturing process, which involves mixing sand, lime, cement, water, and an expanding agent. The mixture is cured in autoclaves to produce lightweight blocks with high insulation and durability. The presentation reviews the advantages of AAC blocks, such as lower weight, thermal resistance, and resistance to fire/pests. It also discusses some disadvantages, like higher initial costs and the need for specialized labor. The objectives are to study AAC blocks and determine their properties to suggest their use in reducing construction costs.
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Lightweight and heavyweight concrete
The document discusses different types of lightweight and heavyweight concrete. It defines lightweight concrete as having a density less than 1850 kg/m3 and a compressive strength over 17 MPa. Lightweight concrete uses porous lightweight aggregates like expanded shale, clay or slate to reduce weight. Heavyweight concrete uses dense aggregates like barites or magnetite to increase density for radiation shielding. The document provides details on the composition, properties and uses of different types of lightweight and heavyweight concrete.
Light weight concrete
This document provides an overview of light weight concrete, including its definition, types of aggregates used, mix design, properties, applications, and advantages/disadvantages. Light weight concrete uses expanded aggregates that create an internal cellular structure, resulting in lower density than conventional concrete. It has benefits such as reduced dead load, faster construction, and lower transport costs. Common uses include structural elements, floor slabs, roof decks, and insulation. While offering weight savings, light weight concrete can be more difficult to place and finish than standard concrete.
Foam Concrete/Light Weight Concrete.
Lightweight concrete, also known as foam concrete or foamed concrete, is a cement-based material that is produced using a minimum of 20% foam to replace fine aggregate, resulting in a density of 400-1600 kg/m3. It has advantages over normal concrete such as lower weight, improved thermal insulation and fire resistance, cost savings, and easier construction. Some disadvantages include increased mixing time and difficulty in finishing due to its porous nature. Foam concrete has a variety of applications and has been used successfully in marine structures, bridges, and railway platforms.
Light weight concrete .....sajid aziz
The document discusses the preparation of lightweight concrete. It describes the group members, title, contents including introduction, raw materials like cement, rice husk ash, fly ash, and foaming agents. The document outlines advantages such as rapid construction, reduced transportation costs, lower overall weight saving on structural frames. Applications include use in roofs, floors, walls, posts and castings to reduce the dead load of concrete structures.
light weight concrete
Lightweight concrete, also known as autoclaved aerated concrete (AAC), is a construction material that is lighter than traditional concrete due to the inclusion of air pockets. It was invented in 1923 and contains aggregates smaller than sand, cement, and other binding agents. When mixed and cured, chemical reactions cause it to be 20% lighter than normal concrete while maintaining compressive strength. Lightweight concrete is used widely in construction due to benefits like reduced weight, insulation, durability, and lower environmental impact.
Light weight concrete
This document discusses different types of light weight concrete, including light weight aggregate concrete, aerated concrete, and no-fines concrete. Light weight concrete has lower density than normal concrete, ranging from 300-1850 kg/m3 compared to 2200-2600 kg/m3. It has advantages like reduced dead load, improved workability, and applications in pre-stressed concrete and high-rise buildings. The main methods to produce light weight concrete are using porous aggregates, incorporating air bubbles, or omitting fine aggregates. Properties depend on the type and density, with compressive strengths ranging from 0.3-40 MPa.
Advance structural concretes (BC)
This document provides information on structural light weight concrete. It defines light weight concrete as a special concrete that weighs less than conventional concrete due to using light weight coarse aggregates. These aggregates can be natural materials like pumice or artificial materials like clay that have been fired to develop a porous structure. Light weight concrete has densities between 1440-1840 kg/m3 compared to 2240-2400 kg/m3 for normal concrete. It is used to reduce the dead load of structures, allowing smaller structural elements like columns and footings. Light weight concrete also provides better strength-to-weight and fire resistance properties than normal concrete.
Special concrete in concrete technology
Lightweight concrete has a density between 300-1850 kg/m3, compressive strengths from 20-40 N/mm2, and better thermal insulation and sound absorption properties compared to normal concrete. It reduces structural dead loads, making it attractive for multi-story buildings.
Light wight concrete
Lightweight concrete has a lower density than normal concrete, ranging from 300-1850 kg/m3 compared to 2200-2600 kg/m3. There are three main types: lightweight aggregate concrete uses porous aggregates; aerated concrete is produced by incorporating air bubbles; and no-fines concrete omits fine aggregates. Lightweight concrete reduces building dead load, improves workability, has better insulation and durability, and allows for use of industrial wastes. Its lower density offers applications in construction elements like pre-stressed concrete and high-rise buildings.
Light weight concrete
Lightweight concrete has a lower density than ordinary concrete due to the use of lightweight aggregates. It has strengths between 7-40 MPa, improved workability, thermal insulation, and water absorption. Lightweight concrete exhibits higher moisture movement and fire resistance compared to ordinary concrete. It is used in prestressed concrete, high-rise buildings, and to reduce dead load. While more expensive, it allows for rapid, simple construction and reduced transportation costs.
Investigations on Properties of Light Weight Cinder Aggregate Concrete
This document summarizes an investigation into the properties of concrete made with cinder aggregate as a partial or full replacement for conventional aggregates. Cinder is a lightweight byproduct of steel manufacturing that can be used to create lighter weight concrete. Tests were conducted replacing granite coarse aggregate with 0-100% cinder aggregate, and river sand fine aggregate with 0-50% cinder powder. Results showed compressive strength was highest with 40% cinder coarse aggregate replacement, but strength generally decreased as replacement levels increased. Tensile strength also decreased with higher cinder replacement. Density of cinder concrete mixes was lower than conventional mixes. The study concluded cinder can be used to create lighter concrete, though strengths are sometimes reduced compared to conventional mixes.
Experimental Investigation of Floating slab Incorporated with Pumice stone an...
This experimental deals with floating concrete precast slab with addition of vermiculite and pumice. Buoyancy plays major role on floating objects. In order to design a floating concrete slab Light Weight Concrete (LWC) plays a prominent role in reducing the density and to increase the thermal insulation. Light weight concrete (LWC) is formed by Natural aggregate, synthetic light weight aggregate. Vermiculite is a light weight and cheap product because of its thermal resistance has become a valuable insulating material. The density of these concrete varies from 750 Kg/m³ to 2050 Kg/m³. Pumice is a natural graded light weight coarse aggregate which has a dry density of 1200 Kg/m³ to 1450 Kg/m. The light Weight Concrete (LWC) M20 using the light weight coarse aggregate as Pumice stone as a full replacement to 100%, light weight fine aggregate as Vermiculite as a replacement of fine aggregate to 75 %. The Cement (Ordinary Portland cement) is partially replaced by Fly Ash up to 50 % and some other mineral admixture are added which are Steel Fibre and Super plasticizer (SP 430) are added. An experimental work concludes in which the compression strength of conventional mix has higher strength and weight. Due to floating condition the specimen must have less density so, specific proportion has low density while comparing to other mix. Even though the mix 4 has low strength but it has low density and it is used in precast floating slab. The slab is designed to float above the datum line and with a load carrying capacity of 1.5 kN. The mix also yields on compressive and split tensile strength of 5.07 N/mm2 and 2.17 N/mm2.
The present day world is witnessing construction of very challenging and difficult civil engineering structures.
Researchers all over the world are attempting to develop low density or lightweight concrete by using different admixtures in concrete up to certain proportions.
This study deals with the development of Floating concrete by using lightweight aggregate (Pumice stone, Vermiculite) and Aluminium powder as an air entraining agent.
Module on light and heavy weight concrete
Lightweight concrete has lower density than normal weight concrete, ranging from 90-115 lb/ft3 compared to 140-150 lb/ft3. It uses lightweight aggregates that are expanded or porous, like shale, clay or slag. Lightweight concrete can be classified based on density and strength, including low density concrete for insulation, moderate strength concrete, and structural concrete. Structural lightweight concrete has compressive strengths over 17.0 MPa and is used in construction where weight needs to be reduced. It has benefits like high strength to weight ratio, thermal insulation, fire resistance, and ease of construction using prefabricated units.
CONCRETE
CONCRETE
CONSTITUENTS OF CONCRETE
LIGHTWEIGHT CONCRETE
ADVANTAGES
DISADVANTAGES
APPLICATIONS
PRINCIPLE TECHNIQUES BEHIND LIGHTWEIGHT CONCRETE
LIGHTWEIGHT AGGREGATE CONCRETE
PRODUCTION OF LIGHTWEIGHT AGGREGATE CONCRETE
CLASSIFICATION OF LIGHTWEIGHT AGGREGATE CONCRETE
NATURAL AGGREGATE
ARTIFICIAL AGGREGATE
LOW-DENSITY CONCRETES
STRUCTURAL LIGHTWEIGHT CONCRETE
MODERATE-STRENGTH LIGHTWEIGHT CONCRETE
PROPERTIES OF LIGHTWEIGHT AGGREGATE CONCRETE
AERATED OR FOAMED CONCRETE
MANUFACTURING OF FOAMED CONCRETE
PROPERTIES OF FOAMED CONCRETE
APPLICATIONS OF FOAMED CONCRETE
NO FINES CONCRETE
PROPERTIES NO FINES CONCRETE
APPLICATIONS NO FINES CONCRETE
HIGH DENSITY CONCRETE
Man-made (Synthetic) Aggregates
ADMIXTURE
High Strength Concrete
SPECIAL METHODS OF MAKING HIGH STRENGTH CONCRETE
Special Concrete - High End Out put Value for Materials
High value generally associated with High-Performance
What is High-Performance?
High-Early Strength Concrete
High-Strength Concrete
High-Durability Concrete
Self-Consolidating Concrete
Reactive Powder Concrete
lightweight concrete
This document defines and describes lightweight concrete. It discusses three main types of lightweight concrete: porous concrete, concrete without fine aggregate, and lightweight aggregate concrete.
Porous concrete contains air bubbles that make it lightweight. Concrete without fine aggregate uses only cement, water, and coarse aggregates. Lightweight aggregate concrete uses lightweight aggregates like pumice or expanded clay instead of regular aggregates.
The document outlines the characteristics and advantages of lightweight concrete, including better thermal and fire insulation, durability in various environments, lower water absorption, and acoustic properties. It also notes some disadvantages like increased sensitivity to water content and difficulty in placement and finishing.
Foam Concrete(properties&applications)
This document presents a project on the properties and applications of foam concrete. It was presented by two students from the Department of Civil Engineering at KUET. The document defines foam concrete as a cement-based slurry with at least 20% entrained foam. It discusses the materials and manufacturing process of foam concrete and describes its key properties like compressive strength, thermal conductivity, drying shrinkage and fire resistance which vary according to density. The document also outlines various applications of foam concrete in construction based on density and highlights its advantages like light weight and rapid construction as well as limitations. Finally, it discusses the potential of foam concrete in Bangladesh.
light weight aggregate.ppt
Lightweight concrete has a density of 300-1850 kg/m3 compared to 2200-2600 kg/m3 for normal concrete. It is made with lightweight aggregates which can be natural like pumice or artificial like expanded shale. Lightweight concrete has applications in structural and non-load bearing construction due to its strength while also providing benefits like reduced weight, improved insulation, and easier construction. Proper mix design is important due to the variable water absorption of aggregates.
Lightweight concrete
Lightweight concrete has a lower density than normal concrete, ranging from 300-1850 kg/m3. There are three main types: lightweight aggregate concrete uses expanded aggregates; aerated concrete is produced by incorporating air bubbles; and no-fines concrete omits fine aggregates. Lightweight concrete provides benefits like improved thermal insulation, soundproofing, and fire resistance compared to normal concrete.
Light Weight Block (CLC) Manufacturing Plant
Cellular Light Weight Concrete Blocks Machine- Manufacturers & Suppliers
Our proficient and dedicated professionals make the utmost use of these facilities and work round the clock with a client centric approach to meet the industrial requirements. These professionals are well versed and have updated knowledge on the latest technology which ensures hassle free and efficient procurement and storage. We have been highly benefited by our facilities, this being one of the reasons for establishing ourselves as a prominent organization.
www.clcblockmachine.in, www.clcplant.com
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Investigations on Properties of Light Weight Cinder Aggregate Concrete
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IRJET- A Review Paper on Light Weight Autoclave Aerated Concrete Block
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FINAL PPT phase 2.pptx
This document summarizes a presentation on autoclaved aerated concrete blocks. It discusses the manufacturing process, which involves mixing sand, lime, cement, water, and an expanding agent. The mixture is cured in autoclaves to produce lightweight blocks with high insulation and durability. The presentation reviews the advantages of AAC blocks, such as lower weight, thermal resistance, and resistance to fire/pests. It also discusses some disadvantages, like higher initial costs and the need for specialized labor. The objectives are to study AAC blocks and determine their properties to suggest their use in reducing construction costs.
IRJET- Cellular Light Weight Concrete
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IRJET- Use of Brick Dust and Fly Ash as a Replacement of Fine Aggregates in S...
This document discusses a study on the use of brick dust and fly ash as replacements for fine aggregates in self-compacting concrete. It provides background on self-compacting concrete and its advantages over normal vibrated concrete. The study aims to compare the mechanical properties of self-compacting concrete and normal concrete with various ratios of fly ash and brick dust replacing fine aggregate. A literature review covers research on the effects of paste content and powder-to-water ratio on the properties of self-compacting concrete, as well as using fly ash and brick dust as additions in concrete mixes.
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This document presents an experimental study on the flexural behavior and load carrying capacity of lightweight self-compacting concrete (LWSCC) using walnut shell as a coarse aggregate replacement. Walnut shell was used to replace 35% of the coarse aggregate volume in self-compacting concrete mixes. Fly ash was also used as a mineral admixture. The fresh and hardened properties of LWSCC mixes were tested and compared to conventional self-compacting concrete. The results showed that LWSCC mixes achieved similar workability and mechanical properties to conventional self-compacting concrete. In particular, a slump flow diameter of 560mm, compressive strength of 34MPa, and split tensile strength of 3.22MP
Self compacting concrete
Paste Viscosity!
Attained by one of three means:
High cement content
High content of Fly Ash, Silica Fume etc
Use of Viscosity Modifying Admixture
Also low water content using HRWR
F42053639
International Journal of Engineering Research and Applications (IJERA) is an open access online peer reviewed international journal that publishes research and review articles in the fields of Computer Science, Neural Networks, Electrical Engineering, Software Engineering, Information Technology, Mechanical Engineering, Chemical Engineering, Plastic Engineering, Food Technology, Textile Engineering, Nano Technology & science, Power Electronics, Electronics & Communication Engineering, Computational mathematics, Image processing, Civil Engineering, Structural Engineering, Environmental Engineering, VLSI Testing & Low Power VLSI Design etc.
BM Assignment 1A
The document provides an overview of different types of concrete and their applications. It discusses autoclaved aerated concrete (AAC), its history, composition, manufacturing process, properties and applications. AAC is a lightweight, insulating building material made from cement, sand and an aluminum compound. It is used in wall, floor and roof construction. The document also covers asphalt concrete, decorative concrete, roller-compacted concrete and self-compacting concrete, outlining their histories, compositions, manufacturing processes and properties. The various types of concrete discussed each have advantages for different construction applications.
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This document provides an introduction to self-compacting concrete (SCC). SCC is concrete that can be placed and consolidated under its own weight without vibration. It was developed in Japan in the late 1980s to address issues with adequate compaction. SCC offers advantages like faster construction, reduced labor needs, easier placing, improved surface finish and durability. However, achieving the balance between flowability and segregation resistance required for SCC is challenging. This depends on factors like superplasticizer dosage and fines content. The document discusses the background and development of SCC as well as its advantages, applications and challenges.
Nitish+chalhotra(800922007) (1)
This document provides an introduction to self-compacting concrete (SCC). SCC is concrete that can be placed and consolidated under its own weight without vibration. It was developed in Japan in the late 1980s to address issues with adequate compaction. The key properties of SCC are high flowability and good cohesiveness. These properties allow SCC to fill forms and pass through reinforced areas without segregation or honeycombing. SCC offers advantages over traditional vibrated concrete such as faster construction, improved durability, better surface finish, and a safer working environment by eliminating vibration. While SCC provides benefits, it also has a higher material cost due to increased binder and chemical admixture contents required.
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2:同时对留学生所学专业登记给予评定
3:国家专业人才认证中心颁发入库证书
4:这个认证书并且可以归档倒地方
5:凡事获得留信网入网的信息将会逐步更新到个人身份内，将在公安局网内查询个人身份证信息后，同步读取人才网入库信息
6:个人职称评审加20分
7:个人信誉贷款加10分
8:在国家人才网主办的国家网络招聘大会中纳入资料，供国家高端企业选择人才
CHINA’S GEO-ECONOMIC OUTREACH IN CENTRAL ASIAN COUNTRIES AND FUTURE PROSPECT
The rivalry between prominent international actors for dominance over Central Asia's hydrocarbon
reserves and the ancient silk trade route, along with China's diplomatic endeavours in the area, has been
referred to as the "New Great Game." This research centres on the power struggle, considering
geopolitical, geostrategic, and geoeconomic variables. Topics including trade, political hegemony, oil
politics, and conventional and nontraditional security are all explored and explained by the researcher.
Using Mackinder's Heartland, Spykman Rimland, and Hegemonic Stability theories, examines China's role
in Central Asia. This study adheres to the empirical epistemological method and has taken care of
objectivity. This study analyze primary and secondary research documents critically to elaborate role of
china’s geo economic outreach in central Asian countries and its future prospect. China is thriving in trade,
pipeline politics, and winning states, according to this study, thanks to important instruments like the
Shanghai Cooperation Organisation and the Belt and Road Economic Initiative. According to this study,
China is seeing significant success in commerce, pipeline politics, and gaining influence on other
governments. This success may be attributed to the effective utilisation of key tools such as the Shanghai
Cooperation Organisation and the Belt and Road Economic Initiative.
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Application of non-autoclave aerated lightweight cellular concrete in modern construction
- 1. APPLICATION OF NON-AUTOCLAVE AERATED LIGHTWEIGHT CELLULAR CONCRETE IN MODERN CONSTRUCTION Available and new types of lightweight cellular concretes, their advantages and disadvantages. Application of non-autoclave lightweight cellular concrete.
- 2. Types of lightweight cellular concrete and its classification 1. By the method of voids incorporation 2. Curing conditions 3. Agents a. Cementing Agent b. Siliceous Agent 4. Density 5. Application DEFINITION( ( Lightweight(cellular(concretes(is( the(general(name(for(a(large(group( of(concretes(with(a(density(of(less( than(800(kg/m3(which(has(a( structure(of(a(lightweight(cement; based(material,(containing(many( gas(bubbles(evenly(distributed(in( the(volume,(produced(by(blending( and(maturing(of(a(mixture(of( cement,(filler,(water,(agent( generaAng(cells.( Aluminum(powder(as(gas( entraining(agent((gasbeton)( Soaping(agent(as(gas(entraining( agent((foam(concrete)( Autoclave((temperature,( pressure)( Steaming( Natural( Post;industrial( ( ( ( Natural( ( ( ( Cement( Lime( Other( Silica( sand( Sand( Industrial( Ashes( 300(kg/m3( 400(kg/m3( 500(kg/m3( 600(kg/m3( 700(kg/m3( 800(kg/m3( Structural((load;bearing( walls,(slabs)( Non;structural((parAAons)(InsulaAon(
- 3. Technical specifications of ECOCON non-autoclave lightweight cellular concrete
- 4. General Advantages 1. Thermal insulation (U-value) 2. Heat capacity 3. Acoustic resistance 4. Low weight 5. Workability 6. Steam permeability (breathing walls) Disadvantages 1. Relatively low strength 2. Drying shrinkage (foam concrete) ( Advantages and disadvantages of non-autoclave lightweight cellular concrete
- 5. Main applications of non-autoclave lightweight cellular concrete (in accordance with ECOCON practical experience) • Construction of load-bearing (walls, slabs) elements in low-rise buildings • ECOCON Construction System (application of lightweight concrete in combination with light gauge steel or bamboo frame) • Arrangement of floor screeds • Arrangement of decorative cornices and architectural elements • Arrangement of fire protection to concrete and steel structures • Filling of voids and gaps in road, bridge and other construction • Thermal insulation of pipelines • Handicraft production of masonry blocks in the rural areas
- 7. ECOCON Construction System Construction of walls Construction of slabs
- 8. Arrangement of floor screed
- 9. Arrangement of decorative cornices
- 10. Handicraft production of masonry blocks
- 12. Present situation with non-autoclave aerated concrete products in the UAE • Dubai Municipality Building Department has issued the primary approval certificate ECOCON Construction System • UAE-Russian Intergovernment Committee has mentioned in its latest protocol the necessity of introduction Russian GOST standards to ESMA and UAE standard practice • First non-autoclave lighweight concrete production plant has been officially launched. • UAE customers has accepted and applied the material to practical construction
- 13. Importance of Non-autoclave Lightweight Cellular Concrete Non-autoclave lightweight cellular is the only chance of brining thermo insulated, ecological, affordable construction to developing countries in Africa and Asia
- 14. ECOCON Industries L.L.C. Plot 180, 182, 183 Al Ghail Industrial Area, P.O. Box: 36408, Ras Al Khaimah, UAE Tel./Fax: +971 7 2215221 ECOCON Technologies F.Z.C. Office 1104, JBC2 Tower, Cluster “V”, Jumeirah Lakes Towers, P.O. Box: 643711, Dubai, UAE Tel.: +971 4 4542418 Fax: +971 4 4542419 ECOCON General Contracting L.L.C. Office 15, Building 5, Al Ghail Industrial Area, P.O. Box: 36408, Ras Al Khaimah, UAE Tel./Fax: +971 7 2215221 ECOCON Group of Companies Contact us after Exhibition for more information about lightweight cellular concrete
- 15. THANK YOU We hope to meet you at our stand at stand MEC A-87
- 16. THANK YOU FOR ATTENDING A wealth of presentations and reports are available at www.middleeastconcrete/presentations PLEASE DON’T FORGET TO COLLECT YOUR ATTENDANCE CERTIFICATE