This product data sheet describes FlexiDry, an additive that enables accelerated drying and hardening of floor screeds. It allows for light foot traffic within 12 hours and final floor finishes to be applied within 7, 14, or 21 days depending on the dosage of FlexiDry used. FlexiDry provides benefits such as low shrinkage, compatibility with underfloor heating and other flooring materials, and logistical advantages from its low volume requirement.
Cebex 112 is a mortar plasticiser that improves the workability and application of sand/cement mortar mixes. It works by entraining microscopic air bubbles that increase cohesion and lubrication between sand particles. This results in improved workability, moisture retention, bond strength, and frost resistance of the mortar. Cebex 112 also increases the yield of mortar for a given quantity of sand and cement by 8-18% by dispersing cement particles and expanding the volume. It provides benefits such as easier application, stronger construction, and potential cost savings due to increased yield.
SUPERCAP is a self-leveling cement product used to cap interior concrete surfaces from 1/8 to 1 1/2 inches thick. It can accept flooring installation in as little as 7 days and provides a smooth, level surface without the need for traditional finishing techniques like power troweling. SUPERCAP is moisture and damage resistant, walkable within hours, and can withstand construction traffic for up to a year before flooring installation. It applies over properly prepared concrete at least 3 days old with a moisture content of 95% or less.
R & M International Pvt Ltd is a leading specialized engineering and construction company dedicated to structural strengthening, base isolation, and waterproofing. The company uses fiber reinforced polymer composites like glass fiber, carbon fiber, and laminates to strengthen structures. It provides fiber wrapping, prestressing, and other services to reinforce concrete and improve structures. R & M offers a wide range of products including resins, primers, membranes, coatings and other materials to enable its strengthening and repair solutions.
SUPERCAP is a cement-based, self-leveling underlayment used to finish and level concrete floors before installing flooring. It can be applied over concrete, wood, and other rigid subfloors 1/4 to 2 inches thick. SUPERCAP dries quickly and flooring can be installed in as little as 1-3 days. It helps create a smooth, level surface and eliminates the need for power troweling concrete.
This document provides guidance on installing high density polyethylene (HDPE) pipe. It discusses:
1) Proper installation requires using the right pipe class, backfill material, and compaction to at least 90% maximum density. Classes IA, IB, and II are preferred over Class III.
2) The pipe must be surrounded by compacted backfill material to distribute loads and provide resistance to deflection. Acceptable backfill ranges from coarse granular to borderline clean/fine grained soils.
3) Trenches must be stable, backfill placed in layers and compacted, and construction loads protected the pipe with sufficient cover. Proper installation is essential for the pipe to perform as
Fullback® Insulated Siding is an industry leading building product. Its moisture performance is only one of its many industry leading features. From the product’s introduction nearly 20 years ago, it was obvious that no siding system would be successful unless it allowed moisture to escape from the wall assembly, either as water vapor or bulk moisture. Progressive Foam completed moisture testing leading-up to the launch of Fullback® Insulated Siding, and has continued to test products as the Fullback® line has evolved.
The document discusses various materials used in pavement construction including road aggregates, subbase, and base course materials. It describes desirable properties for road aggregates including resistance to crushing, abrasion, impact, and weathering. It explains that a subbase layer provides a cost-effective way to build thick pavements and can consist of select gravels or stabilized soils. A base course improves load distribution and support. The document also discusses soil-aggregate mix properties, grading requirements, and construction considerations for pavement materials.
Cebex 112 is a mortar plasticiser that improves the workability and application of sand/cement mortar mixes. It works by entraining microscopic air bubbles that increase cohesion and lubrication between sand particles. This results in improved workability, moisture retention, bond strength, and frost resistance of the mortar. Cebex 112 also increases the yield of mortar for a given quantity of sand and cement by 8-18% by dispersing cement particles and expanding the volume. It provides benefits such as easier application, stronger construction, and potential cost savings due to increased yield.
SUPERCAP is a self-leveling cement product used to cap interior concrete surfaces from 1/8 to 1 1/2 inches thick. It can accept flooring installation in as little as 7 days and provides a smooth, level surface without the need for traditional finishing techniques like power troweling. SUPERCAP is moisture and damage resistant, walkable within hours, and can withstand construction traffic for up to a year before flooring installation. It applies over properly prepared concrete at least 3 days old with a moisture content of 95% or less.
R & M International Pvt Ltd is a leading specialized engineering and construction company dedicated to structural strengthening, base isolation, and waterproofing. The company uses fiber reinforced polymer composites like glass fiber, carbon fiber, and laminates to strengthen structures. It provides fiber wrapping, prestressing, and other services to reinforce concrete and improve structures. R & M offers a wide range of products including resins, primers, membranes, coatings and other materials to enable its strengthening and repair solutions.
SUPERCAP is a cement-based, self-leveling underlayment used to finish and level concrete floors before installing flooring. It can be applied over concrete, wood, and other rigid subfloors 1/4 to 2 inches thick. SUPERCAP dries quickly and flooring can be installed in as little as 1-3 days. It helps create a smooth, level surface and eliminates the need for power troweling concrete.
This document provides guidance on installing high density polyethylene (HDPE) pipe. It discusses:
1) Proper installation requires using the right pipe class, backfill material, and compaction to at least 90% maximum density. Classes IA, IB, and II are preferred over Class III.
2) The pipe must be surrounded by compacted backfill material to distribute loads and provide resistance to deflection. Acceptable backfill ranges from coarse granular to borderline clean/fine grained soils.
3) Trenches must be stable, backfill placed in layers and compacted, and construction loads protected the pipe with sufficient cover. Proper installation is essential for the pipe to perform as
Fullback® Insulated Siding is an industry leading building product. Its moisture performance is only one of its many industry leading features. From the product’s introduction nearly 20 years ago, it was obvious that no siding system would be successful unless it allowed moisture to escape from the wall assembly, either as water vapor or bulk moisture. Progressive Foam completed moisture testing leading-up to the launch of Fullback® Insulated Siding, and has continued to test products as the Fullback® line has evolved.
The document discusses various materials used in pavement construction including road aggregates, subbase, and base course materials. It describes desirable properties for road aggregates including resistance to crushing, abrasion, impact, and weathering. It explains that a subbase layer provides a cost-effective way to build thick pavements and can consist of select gravels or stabilized soils. A base course improves load distribution and support. The document also discusses soil-aggregate mix properties, grading requirements, and construction considerations for pavement materials.
Evaluation of Compressive Strength and Water Absorption of Styrene Butadiene...IJMER
This document summarizes a study on the effect of adding styrene butadiene rubber (SBR) latex on the compressive strength and water absorption of concrete. The study found that adding SBR latex ("RIPSTAR-148") increased the slump and workability of concrete mixes. At 7 days, SBR latex decreased compressive strength but reduced water absorption. At 28 days, SBR latex increased compressive strength up to 14% and decreased water absorption up to 44% due to the formation of a polymer film. The study concluded that SBR latex can improve concrete durability but the dosage may need adjusting to control workability.
Pervious concrete is one of the most promising sustainable materials now a days.
Pervious concrete is a zero slump, open graded material consisting of hydraulic
cement, coarse aggregates, admixtures and water. It is sometimes referred to as nofines
concrete. It is a special type of concrete having a high void content and is
becoming popular due to its potential to reduce the runoff to the drainage systems.
In this paper, the behavior of pervious concrete with different sizes of coarse
aggregate is studied. Various mix proportions were prepared by using different sizes
of coarse aggregates. The properties like permeability, porosity, density, strength and
durability of pervious concrete are studied.
The water cement ratio (0.31) and aggregate cement ratio are kept constant. The
study is conducted experimentally for 7, 28 & 56 days. The mix proportion of coarse
aggregate and its effect on properties of pervious concrete are studied and
corresponding graphs are hence obtained
IRJET- Experimental Investigation on Light Weight Brick with Foaming Agent IRJET Journal
This document summarizes an experimental investigation on producing lightweight bricks using fly ash, cement, and a foaming agent. Three mix ratios of fly ash, cement, and foaming agent were tested: 50:45:5, 50:40:10, and 50:35:15. The bricks were cured for 7, 14, and 21 days and then tested for crushing strength and water absorption. Test results found that as the amount of foaming agent increased from 5% to 15%, the crushing strength and water absorption improved. For example, at 21 days the 50:35:15 mix achieved a crushing strength of 6.95 N/mm2 and water absorption of 6.09%, outperforming conventional clay bricks.
IRJET- Experimental Study on Partial Replacement of Cement with Metakaolin an...IRJET Journal
This document presents an experimental study that evaluated the partial replacement of cement with metakaolin and bagasse ash in concrete mixtures. Puntke testing was conducted to determine the packing density of different cementitious material combinations. The study found that replacing cement with metakaolin and bagasse ash improved the workability, mechanical strengths, and durability of concrete. Specifically, the replacement materials increased the packing density of the mixtures, reduced thermal cracks, and improved compressive, split tensile, and flexural strengths over time. The results indicate that metakaolin and bagasse ash can effectively be used as partial cement replacements in structural concrete.
This document discusses aggregates and bituminous materials used in construction. It describes various types of aggregates including sand, gravel, crushed stone, and recycled concrete that are used as a base material or to extend asphalt and concrete. It outlines important properties of aggregates like density, absorption and shape. It also discusses uses of aggregates in bases, asphalt, and Portland cement. Further, it describes types and testing of bituminous materials like penetration graded bitumen, viscosity graded bitumen and modified bitumens used in construction.
SUPERCAPTM FAST is a self-leveling cement product that can be applied to concrete surfaces as soon as 3 days after pouring to provide a smooth, level finish up to 1.5 inches thick. It reaches a compressive strength of 5000 PSI within 24 hours, allowing for installation of flooring. The product fills voids and removes variations in concrete slabs to provide a smooth, dense surface suitable for applying finished floor goods such as carpeting, vinyl, and wood as soon as one day after application.
The document discusses various construction and repair chemicals. It describes 21 categories of chemicals including injecting grouts, rust converters, corrosion inhibitors, passivating coats, bonding coats, plasticizers, super plasticizers, shrinkage reducing compounds, self-flowing micro concrete, polymer/epoxies in repair mortar, quick setting compounds, retarders, curing compounds, shutter oils, floor hardeners, waterproofing compounds, air entraining agents, anti-carbonation protective coatings, protective coats for steel, acid resistance enhancers, and anchoring compounds. Each category lists several product examples and describes their chemical composition and applications.
Presentation @ CRG PG lab @ Doctoral Research workOLUSEGUN AFOLABI
This document discusses hybrid syntactic foam based natural fiber composites. It describes the materials used, which include epoxy resin, hardener, hollow glass microspheres, glass fiber, sisal and kenaf fiber, and carbon nanotubes. Two fabrication methods are provided: laminate and casting. The composite has applications in improving buoyancy of subsea materials and providing heat retardation. It also discusses the use of syntactic foam for buoyancy in human-occupied vehicles, autonomous underwater vehicles, and remotely operated vehicles. Syntactic foam's properties make it suitable as a heat insulating material and for flame retardation in structural materials. Finally, it briefly describes machining syntactic foam using different CNC machines.
Eclipse Shrinkage Reducing Admixture is a liquid admixture that can be added to concrete to dramatically reduce shrinkage due to drying by up to 80% at 28 days. It works by reducing the surface tension of water in pores between 2.5-50 nm in size, lessening the tensile forces that cause shrinkage. Adding Eclipse at 2% of cement weight is recommended to maximize shrinkage reduction of 25-50%. It has been shown to eliminate cracking from drying shrinkage in fully restrained concrete.
This document discusses various types of admixtures that are added to concrete to modify its properties. It describes 15 types of admixtures classified according to their function, including plasticizers, superplasticizers, retarders, accelerators, air-entraining agents, and pozzolanic materials. Common chemical admixtures are discussed in more detail, along with their effects on properties of fresh and hardened concrete. Mineral admixtures like fly ash, blast furnace slag, rice husk ash, and silica fume are also summarized in terms of their composition and impact on improving concrete quality and durability.
CON 122 Session 4 - Water Reducing & Set Controlling Admixturesalpenaccedu
The document discusses various types of concrete admixtures that control setting time or water content according to ASTM C494 standards. It describes water-reducing admixtures (Type A, D, E, F) that decrease the water demand while maintaining workability, and set-controlling admixtures (Type B, C, D, G) that accelerate or retard setting. It provides information on how admixtures affect concrete properties such as strength, shrinkage, corrosion resistance. The document also addresses considerations for using admixtures in hot or cold weather concreting.
Producing flaked breakfast cereals from pellets or grits by passing them between contra-rotating rollers is a prime example of a process that is much more complex than it appears. Achieving the consistent high quality demanded by consumers at the high outputs needed by producers requires a great deal more process expertise and precision engineering than might be assumed.
1. Admixtures are added to concrete to modify properties in both fresh and hardened states by reducing water content or increasing workability.
2. This study evaluated two superplasticizers on concrete workability and strength properties.
3. The results showed that both superplasticizers increased compressive, tensile, and flexural strengths at various mix ratios and water-cement ratios compared to plain concrete. Rheobuild 561M performed better than Rheobuild 1100 in most tests.
This document provides information on various types of admixtures used in concrete. It discusses mineral admixtures including slag, pozzolanas and fillers. It describes different chemical admixtures such as accelerators, retarders, air entraining agents, water reducers, plasticizers, and super plasticizers. Specific admixtures like fly ash, GGBS, and silica fume are explained in detail along with their effects on fresh and hardened concrete. High volume fly ash concrete and its properties are also summarized.
Coastland Geotechnics provides hydroseeding services for erosion control. Their team has extensive experience in geotechnical design and construction. Hydroseeding involves mixing seed, mulch, and amendments with water to form a slurry that is sprayed under pressure. This covers soil quickly and creates conditions for seed germination. Coastland demonstrated their hydroseeding methodology through laboratory tests and slope simulations. They optimized the slurry mix and established vegetation on steep slopes and through geotextiles to provide effective erosion control.
CTEP - UNIT - I - ADMIXTURES & CONSTRUCTION CHEMICALSShankar Ramasamy
This document provides information on concrete admixtures, including definitions and uses. It discusses different types of admixtures such as air-entraining agents, water reducers, plasticizers, superplasticizers, retarders, accelerators, and damp proofing admixtures. For each type of admixture, the document outlines their properties, mechanisms, advantages, and applications in concrete mixing and construction. In addition, the document covers curing compounds and polymer bonding agents used for curing concrete and bonding new concrete to existing structures.
Experimental Study On Glass Fiber Reinforced Concrete with Partial Replacemen...IRJET Journal
This study experimentally investigates the characteristics of concrete with partial replacements of cement with ground granulated blast furnace slag (GGBS) and fly ash, as well as additions of glass fibers. Glass fiber reinforced concrete uses glass fibers instead of steel for reinforcement. The study mixes concrete with 10% fly ash replacement and 10-30% GGBS replacement, as well as 0-1% glass fiber additions. Tests are performed to determine the compressive, flexural, and split tensile strengths of the concrete mixtures at 7, 14, and 28 days. The results show that partial cement replacement with fly ash and GGBS, as well as the addition of glass fibers, can improve the strength of concrete compared to normal concrete
FAIRCRETE FBR is a polymer specially formulated for use with cement formulation. It is design to improve the quality of site-batched cementitious mortars and slurries.
Este documento resume la historia de la informática, desde los primeros cálculos realizados con el ábaco en el año 3500 a.C. hasta los avances en hardware y software en los siglos XX y XXI. Explica las cinco generaciones de ordenadores desde la creación de la primera computadora Z1 en 1938 hasta los disquetes de 3.5 pulgadas en 1981. Describe los componentes principales del hardware como la CPU, la memoria RAM y los periféricos. También define el software, incluyendo sistemas operativos como Windows y Linux, y aplicaciones comunes como
C:\Documents And Settings\User\Desktop\Vocabguest12d87c
The document provides 24 pairs of antonyms. Each pair contrasts two words with opposite or nearly opposite meanings. Some examples include absolutely/conditionally, conscientious/dishonest, curious/incurious, and dormant/active.
Este documento describe diferentes usos del punto y la línea en la composición de imágenes. Explica cómo los puntos pueden ser usados explícitamente, como centro geométrico, punto de fuga o foco de atención. También describe cómo las líneas pueden ser usadas para dirigir la mirada del espectador, sugerir movimiento, quietud, equilibrio o tensión, y cómo los puntos pueden crear dinamicidad o una línea visual.
Evaluation of Compressive Strength and Water Absorption of Styrene Butadiene...IJMER
This document summarizes a study on the effect of adding styrene butadiene rubber (SBR) latex on the compressive strength and water absorption of concrete. The study found that adding SBR latex ("RIPSTAR-148") increased the slump and workability of concrete mixes. At 7 days, SBR latex decreased compressive strength but reduced water absorption. At 28 days, SBR latex increased compressive strength up to 14% and decreased water absorption up to 44% due to the formation of a polymer film. The study concluded that SBR latex can improve concrete durability but the dosage may need adjusting to control workability.
Pervious concrete is one of the most promising sustainable materials now a days.
Pervious concrete is a zero slump, open graded material consisting of hydraulic
cement, coarse aggregates, admixtures and water. It is sometimes referred to as nofines
concrete. It is a special type of concrete having a high void content and is
becoming popular due to its potential to reduce the runoff to the drainage systems.
In this paper, the behavior of pervious concrete with different sizes of coarse
aggregate is studied. Various mix proportions were prepared by using different sizes
of coarse aggregates. The properties like permeability, porosity, density, strength and
durability of pervious concrete are studied.
The water cement ratio (0.31) and aggregate cement ratio are kept constant. The
study is conducted experimentally for 7, 28 & 56 days. The mix proportion of coarse
aggregate and its effect on properties of pervious concrete are studied and
corresponding graphs are hence obtained
IRJET- Experimental Investigation on Light Weight Brick with Foaming Agent IRJET Journal
This document summarizes an experimental investigation on producing lightweight bricks using fly ash, cement, and a foaming agent. Three mix ratios of fly ash, cement, and foaming agent were tested: 50:45:5, 50:40:10, and 50:35:15. The bricks were cured for 7, 14, and 21 days and then tested for crushing strength and water absorption. Test results found that as the amount of foaming agent increased from 5% to 15%, the crushing strength and water absorption improved. For example, at 21 days the 50:35:15 mix achieved a crushing strength of 6.95 N/mm2 and water absorption of 6.09%, outperforming conventional clay bricks.
IRJET- Experimental Study on Partial Replacement of Cement with Metakaolin an...IRJET Journal
This document presents an experimental study that evaluated the partial replacement of cement with metakaolin and bagasse ash in concrete mixtures. Puntke testing was conducted to determine the packing density of different cementitious material combinations. The study found that replacing cement with metakaolin and bagasse ash improved the workability, mechanical strengths, and durability of concrete. Specifically, the replacement materials increased the packing density of the mixtures, reduced thermal cracks, and improved compressive, split tensile, and flexural strengths over time. The results indicate that metakaolin and bagasse ash can effectively be used as partial cement replacements in structural concrete.
This document discusses aggregates and bituminous materials used in construction. It describes various types of aggregates including sand, gravel, crushed stone, and recycled concrete that are used as a base material or to extend asphalt and concrete. It outlines important properties of aggregates like density, absorption and shape. It also discusses uses of aggregates in bases, asphalt, and Portland cement. Further, it describes types and testing of bituminous materials like penetration graded bitumen, viscosity graded bitumen and modified bitumens used in construction.
SUPERCAPTM FAST is a self-leveling cement product that can be applied to concrete surfaces as soon as 3 days after pouring to provide a smooth, level finish up to 1.5 inches thick. It reaches a compressive strength of 5000 PSI within 24 hours, allowing for installation of flooring. The product fills voids and removes variations in concrete slabs to provide a smooth, dense surface suitable for applying finished floor goods such as carpeting, vinyl, and wood as soon as one day after application.
The document discusses various construction and repair chemicals. It describes 21 categories of chemicals including injecting grouts, rust converters, corrosion inhibitors, passivating coats, bonding coats, plasticizers, super plasticizers, shrinkage reducing compounds, self-flowing micro concrete, polymer/epoxies in repair mortar, quick setting compounds, retarders, curing compounds, shutter oils, floor hardeners, waterproofing compounds, air entraining agents, anti-carbonation protective coatings, protective coats for steel, acid resistance enhancers, and anchoring compounds. Each category lists several product examples and describes their chemical composition and applications.
Presentation @ CRG PG lab @ Doctoral Research workOLUSEGUN AFOLABI
This document discusses hybrid syntactic foam based natural fiber composites. It describes the materials used, which include epoxy resin, hardener, hollow glass microspheres, glass fiber, sisal and kenaf fiber, and carbon nanotubes. Two fabrication methods are provided: laminate and casting. The composite has applications in improving buoyancy of subsea materials and providing heat retardation. It also discusses the use of syntactic foam for buoyancy in human-occupied vehicles, autonomous underwater vehicles, and remotely operated vehicles. Syntactic foam's properties make it suitable as a heat insulating material and for flame retardation in structural materials. Finally, it briefly describes machining syntactic foam using different CNC machines.
Eclipse Shrinkage Reducing Admixture is a liquid admixture that can be added to concrete to dramatically reduce shrinkage due to drying by up to 80% at 28 days. It works by reducing the surface tension of water in pores between 2.5-50 nm in size, lessening the tensile forces that cause shrinkage. Adding Eclipse at 2% of cement weight is recommended to maximize shrinkage reduction of 25-50%. It has been shown to eliminate cracking from drying shrinkage in fully restrained concrete.
This document discusses various types of admixtures that are added to concrete to modify its properties. It describes 15 types of admixtures classified according to their function, including plasticizers, superplasticizers, retarders, accelerators, air-entraining agents, and pozzolanic materials. Common chemical admixtures are discussed in more detail, along with their effects on properties of fresh and hardened concrete. Mineral admixtures like fly ash, blast furnace slag, rice husk ash, and silica fume are also summarized in terms of their composition and impact on improving concrete quality and durability.
CON 122 Session 4 - Water Reducing & Set Controlling Admixturesalpenaccedu
The document discusses various types of concrete admixtures that control setting time or water content according to ASTM C494 standards. It describes water-reducing admixtures (Type A, D, E, F) that decrease the water demand while maintaining workability, and set-controlling admixtures (Type B, C, D, G) that accelerate or retard setting. It provides information on how admixtures affect concrete properties such as strength, shrinkage, corrosion resistance. The document also addresses considerations for using admixtures in hot or cold weather concreting.
Producing flaked breakfast cereals from pellets or grits by passing them between contra-rotating rollers is a prime example of a process that is much more complex than it appears. Achieving the consistent high quality demanded by consumers at the high outputs needed by producers requires a great deal more process expertise and precision engineering than might be assumed.
1. Admixtures are added to concrete to modify properties in both fresh and hardened states by reducing water content or increasing workability.
2. This study evaluated two superplasticizers on concrete workability and strength properties.
3. The results showed that both superplasticizers increased compressive, tensile, and flexural strengths at various mix ratios and water-cement ratios compared to plain concrete. Rheobuild 561M performed better than Rheobuild 1100 in most tests.
This document provides information on various types of admixtures used in concrete. It discusses mineral admixtures including slag, pozzolanas and fillers. It describes different chemical admixtures such as accelerators, retarders, air entraining agents, water reducers, plasticizers, and super plasticizers. Specific admixtures like fly ash, GGBS, and silica fume are explained in detail along with their effects on fresh and hardened concrete. High volume fly ash concrete and its properties are also summarized.
Coastland Geotechnics provides hydroseeding services for erosion control. Their team has extensive experience in geotechnical design and construction. Hydroseeding involves mixing seed, mulch, and amendments with water to form a slurry that is sprayed under pressure. This covers soil quickly and creates conditions for seed germination. Coastland demonstrated their hydroseeding methodology through laboratory tests and slope simulations. They optimized the slurry mix and established vegetation on steep slopes and through geotextiles to provide effective erosion control.
CTEP - UNIT - I - ADMIXTURES & CONSTRUCTION CHEMICALSShankar Ramasamy
This document provides information on concrete admixtures, including definitions and uses. It discusses different types of admixtures such as air-entraining agents, water reducers, plasticizers, superplasticizers, retarders, accelerators, and damp proofing admixtures. For each type of admixture, the document outlines their properties, mechanisms, advantages, and applications in concrete mixing and construction. In addition, the document covers curing compounds and polymer bonding agents used for curing concrete and bonding new concrete to existing structures.
Experimental Study On Glass Fiber Reinforced Concrete with Partial Replacemen...IRJET Journal
This study experimentally investigates the characteristics of concrete with partial replacements of cement with ground granulated blast furnace slag (GGBS) and fly ash, as well as additions of glass fibers. Glass fiber reinforced concrete uses glass fibers instead of steel for reinforcement. The study mixes concrete with 10% fly ash replacement and 10-30% GGBS replacement, as well as 0-1% glass fiber additions. Tests are performed to determine the compressive, flexural, and split tensile strengths of the concrete mixtures at 7, 14, and 28 days. The results show that partial cement replacement with fly ash and GGBS, as well as the addition of glass fibers, can improve the strength of concrete compared to normal concrete
FAIRCRETE FBR is a polymer specially formulated for use with cement formulation. It is design to improve the quality of site-batched cementitious mortars and slurries.
Este documento resume la historia de la informática, desde los primeros cálculos realizados con el ábaco en el año 3500 a.C. hasta los avances en hardware y software en los siglos XX y XXI. Explica las cinco generaciones de ordenadores desde la creación de la primera computadora Z1 en 1938 hasta los disquetes de 3.5 pulgadas en 1981. Describe los componentes principales del hardware como la CPU, la memoria RAM y los periféricos. También define el software, incluyendo sistemas operativos como Windows y Linux, y aplicaciones comunes como
C:\Documents And Settings\User\Desktop\Vocabguest12d87c
The document provides 24 pairs of antonyms. Each pair contrasts two words with opposite or nearly opposite meanings. Some examples include absolutely/conditionally, conscientious/dishonest, curious/incurious, and dormant/active.
Este documento describe diferentes usos del punto y la línea en la composición de imágenes. Explica cómo los puntos pueden ser usados explícitamente, como centro geométrico, punto de fuga o foco de atención. También describe cómo las líneas pueden ser usadas para dirigir la mirada del espectador, sugerir movimiento, quietud, equilibrio o tensión, y cómo los puntos pueden crear dinamicidad o una línea visual.
The Slopetame2 system provides erosion control through a three-dimensional matrix of plastic rings, vertical bars, and a geotextile fabric. It reinforces soil to increase stability on slopes and prevents erosion better than mats. Applications include vegetated swales, pond shorelines, steep slopes, channels, and infiltration trenches. The system's crossbars and fabric allow for plant growth while prohibiting soil movement. Duckbill anchors and rebar securely fasten the mats in place.
Scrum Club: One Thing You Can Do To Get People To Work Togetheramanda_abelove
This document summarizes the key points from a meeting about getting people to work together effectively. It discusses choosing a problem that matters and clearly defining the critical need. It also introduces the concept of a game called Corporate Espionage that could generate revenue for Scrum Club by addressing problems with traditional fundraising.
El documento habla sobre el alfabetismo en medios, el cual es una forma de abordar la educación para el siglo XXI que enseña habilidades para acceder, analizar, evaluar y crear mensajes en diferentes formatos. Incluye cinco conceptos básicos sobre cómo los mensajes se construyen y cinco preguntas clave para analizarlos. También describe habilidades como acceder, crear y evaluar, así como preguntas para guiar el análisis de medios en niños y jóvenes.
Screeds provide a vital layer in a floor that bonds the finish people see and walk across to the concrete substrate of the building’s construction.
If properly applied and maintained then most screeds need never be seen until the building comes to the end of its life and is dismantled. However failures in the planning, application, curing or drying processes can lead to later, potentially very costly, problems.
Read Flowcrete's whitepaper for an overview of the reasons for screed failure in both commercial and industrial environments, as well as an insight into screed failure avoidance and repair.
FlexiDry is a screed additive that accelerates the drying time of floor screeds, allowing final floor finishes to be installed after just 7, 14, or 21 days instead of the standard 110 days. It works by accelerating the hydration reaction between cement and water, allowing the screed to bond faster while maintaining workability, strength, and durability. Additional benefits include reduced shrinkage, earlier light foot traffic, and cost savings through faster project timelines.
The document discusses Ardex 'Rapidry Formula' cement systems for flooring. It describes how products with the Rapidry Formula logo incorporate unique technology allowing them to totally bind water during mixing. This enables rapid hardening and drying of screeds and toppings regardless of thickness. It also eliminates the risk of discoloration when fixing natural stone. Several Ardex cement products are then described including screeds, self-leveling compounds, primers, and a car park system.
The document discusses issues with laying floor screed too quickly without allowing sufficient drying time. Rapidly laid screed risks cracking if moisture is not allowed to properly evaporate. New fast-drying screed products using superplasticizers can reduce drying times from a month to just days. However, contractors still report cases of trades working on floors before they are fully cured, risking damage that compromises integrity. Proper consideration of drying requirements is important for ensuring screed quality and durability.
This document describes a product called Underbold®, which is a mixture of waxes and oleine used to stabilize soils and modify asphalt. It summarizes the main effects and benefits of Underbold®, which include making treated soils hydrophobic, increasing compressive strength and resilience against water, and allowing for watertightness with suitable mixtures. Using Underbold® can reduce costs by 30% through savings on materials, transport, and construction time. It also describes the application process, which involves blending the Underbold® mixture into the soil, distributing a bonding agent, and compressing the treated surface. Treated surfaces are ready for asphalt pavement within 12 hours.
The document discusses various methods for controlling groundwater, which can be divided into permanent and temporary exclusion. Permanent exclusion methods like sheet piling, diaphragm walls, and grouting form barriers to block groundwater flow. Temporary methods like dewatering wells and deep boring lower the water table to allow for excavation work before groundwater levels return. The effectiveness of each method depends on the soil type and project needs.
FRP for masonry, stone, flat/curved arch terracotta and cindercrete stabilization with a Class A Fire Rating for interior, exterior, and above or below grade (wet) applications.
Envirogreen is a liquid soil stabilizer and strengthener for building durable unpaved and paved roads. It is a patented blend of organic and inorganic compounds that binds soil particles to form a strong base. When mixed with soil and compacted, Envirogreen increases the soil's strength and durability while remaining non-toxic. It has been used successfully for over 12 years on various road projects like mine haul roads, plantation roads, and aircraft runways.
This is our first product to be developed at U.S. Concrete\'s R&D facility.
Excess moisture in a concrete slab is a leading cause of flooring problems. Preventing moisture problems in situations where moisture-sensitive floor coverings will be applied is critical. Aridus Rapid Drying Concrete eliminates a major source of moisture-related flooring problems and increases the likelihood that installations will proceed on schedule — without the need for costly topical moisture mitigation treatments.
Waterproofing sealants are materials that are applied to surfaces and joints to create a barrier against water infiltration. They are commonly used in various construction applications, including roofs, windows, doors, bathrooms, and basements. Here are some key points about waterproofing sealants:
Contact Information
Durotech Industries, 14 Essex Street Minto NSW 2566 Australia
02 9603 1177
sales@durotechindustries.com.au
https://www.durotechindustries.com.au/
FAIRFLO SC1 is based on modified sulphonated Nepthalene formaldehyde polymer. FAIRFLO SC1 can be used in may ways to obtain dense, high strength, durable and very cohesive mix to maintained its cohesiveness upto much more longer time.
IRJET- Process and Method of Manufacturing and Review on Foam – ConcreteIRJET Journal
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This document provides information on UltraTech Cement's building products division and their product portfolio. It discusses their various cement-based products including AAC blocks, waterproofing solutions, tile adhesives, floor screeds, plasters, industrial grouts, and mortars. It provides details on the product segments, locations of BPD plants, technical specifications and parameters of their mortar and plaster range, and waterproofing solutions like Seal & Dry SBR and Weather Pro WP+. It also summarizes the uses and application areas of these products for construction purposes like plastering, tiling, waterproofing of structures.
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The document compares the features of three insulating compounds from Dow Corning for maintaining insulators: Dow Corning 5 Silicone Compound, Dow Corning 3099 HVIC Compound, and Dow Corning Xiameter Sylgard HVIC + Coating. All three products provide good resistance to water and atmospheric degradation. Dow Corning 3099 HVIC Compound and Dow Corning Xiameter Sylgard HVIC + Coating have longer arc resistance times and thicker recommended coating thicknesses compared to Dow Corning 5 Silicone Compound. The expected service life ranges from 18 months to over 10-15 years depending on the product and service conditions.
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SUPERCAP FAST is a cement-based, self-leveling underlayment that develops high early strength. It can be applied over concrete, wood, and other rigid flooring substrates 1 day to 5 days before installing flooring. SUPERCAP FAST has advantages like early walkability within 2-4 hours, ability to install flooring after 1 day at 1/4" thickness, and contributing no mold growth. It has high compressive and bond strengths according to tests. The document provides instructions on mixing and applying SUPERCAP FAST over various substrate types.
Dampfix EG is an acrylic-based skim coat plaster designed to provide a smooth surface for painting on interior and exterior walls. It controls dampness and salt migration while allowing walls to dry naturally. It sands and applies easily, adheres well to surfaces, and has insulating properties that reduce condensation and mold growth. Dampfix EG is breathable and suitable for renovating damp or salt-contaminated walls.
Birkosit is a single-component paste used for sealing joints and surfaces in industrial applications requiring resistance to high temperatures and pressures. It can be applied using a putty knife or spatula and subjected to loading immediately. Its hardening time of several hours allows butt joints to be properly fitted. Birkosit is resistant to temperatures up to 650°C and pressures up to 135 bar for flanges and 550 bar for screw joints. It has unlimited plastic deformation, so the sealing film does not break under demanding conditions.
Sample Specification for M10 Proprietary Quick Drying Levelling ScreedsFlexiDry Global Ltd
This document discusses FlexiDry, a proprietary quick drying cementitious screed that can be used for bonded, unbonded, floating, and heated screeds. It comes in options to dry in 3, 7, 14, or 21 days. The document provides details on substrate preparation, screed construction, recommended thicknesses, finishes, joints, and curing. It emphasizes mixing and application should follow the manufacturer's recommendations to achieve the desired strength and drying properties.
Sample Specification for M10 Proprietary Quick Drying Levelling ScreedsFlexiDry Global Ltd
This document discusses FlexiDry, a proprietary quick drying cementitious screed that can be used for bonded, unbonded, floating, and heated screeds. It comes in options to dry in 3, 7, 14, or 21 days. The document provides details on substrate preparation, screed construction, recommended thicknesses, finishes, joints, and curing. It emphasizes mixing and application should follow the manufacturer's recommendations to achieve the desired strength and drying properties.
FlexiDry is a fast drying floor screed that offers variable guaranteed dry times between 3 to 21 days without needing a controlled environment. It removes the need for liquid DPMs, can be walked on after 12 hours, and gains strength quickly while reducing shrinkage. Recent projects using FlexiDry include the Athletes Village for the 2012 London Olympics and lodges at Center Parcs. Additional information is available on the National Building Specification website or directly from FlexiDry.
FlexiDry produces a floor screed that offers variable guaranteed dry times from 3 to 21 days, removing the need for liquid DPMs. It allows for light foot traffic after just 12 hours and has increased compressive strength while reducing carbon footprint. FlexiDry has been used in projects like Westfield Stratford City, art galleries, sports halls, restaurants, and luxury developments. It is suitable for underfloor heating systems and information can be found on NBS. Recent installations included ones at Westfield Stratford City, a church in Wimbledon, and energy-efficient houses from Dan-Wood.
FlexiDry produces a fast-drying floor screed that can save time and money on construction projects. It offers variable guaranteed dry times from 3 to 21 days. Recent projects using FlexiDry include buildings at Westfield Stratford City, Roca Art Gallery, and Uxbridge College Sports Hall. Mixamate can now deliver FlexiDry screeds in a ready-mixed format on site. The new Centre for the Child, Family and Society at Glyndŵr University recently installed FlexiDry F3 screed with a 21 day dry time. FlexiDry F0 was used for rebuilding a snooker hall in High Wycombe after its roof collapsed.
FlexiDry produces fast-drying floor screeds that can dry in as little as 3 days, reducing construction timelines and carbon footprints. Their screeds are suitable for underfloor heating and have been used in projects for Armani, Center Parks, and hospitals. The company's latest product, FlexiDry F0, dries in just 3 days and was used for a new sushi restaurant. FlexiDry screeds allow contractors to meet deadlines and change dry times as needed.
FlexiDry is a floor screed product that offers variable drying times of 7, 14, or 21 days. It allows for light foot traffic after just 12 hours and has increased compressive strength while reducing carbon footprint. Recent projects using FlexiDry include luxury lodging renovations at Center Parcs, expanding facilities at a Christian center in Milton Keynes, and flooring the flagship Armani store in a new Manchester shopping area.
FlexiDry produces a floor screed product that offers variable dry times of 7, 14, or 21 days. The screed allows for light foot traffic after just 12 hours and has increased compressive strength while reducing the carbon footprint. FlexiDry was used to install screed for a 630 square meter sports hall in one day and to meet a tight deadline for an orangery addition. The product is also being used in a new community center known for its environmentally friendly heating systems.
One Hyde Park in Knightsbridge is installing FlexiDry Floor Screeds that allow for a 7 day dry time. Located near luxury stores, the penthouse apartment has already sold for £100 million, making it the most expensive flat in the world. The development was built on the site of a former office building and will include 80 apartments along with amenities like spas and wine tasting facilities. Apartments have sold for record prices of £6,000 per square foot to wealthy international buyers and celebrities.
FlexiDry F1 screed was installed over an underfloor heating system at the North Middlesex University Hospital during a £118 million redevelopment project to replace half of the existing buildings. The new facilities will provide emergency care, acute and critical care centers, and a diagnostic and treatment center with operating theaters, imaging, and outpatient services. The project is scheduled for completion by the end of 2010 with additional landscaping work continuing into 2011.
The Heritage School in Derbyshire is being rebuilt as part of a school rebuilding program. Over 8,100 square meters of FlexiDry floor screed will be installed over the underfloor heating system in the new school's five blocks. The first block was completed in January 2010, with the remaining blocks to be finished over the coming months and the entire new school to be completed by January 2011. The existing school will remain open during construction to minimize student disruption. When complete, the old school will be demolished and replaced with landscaping, while the existing sports hall will be renovated. The new school aims to be environmentally friendly with a wind turbine, solar panels, and the FlexiDry screed which reduces cement and
The Finchampstead Community Centre is a new £4 million multi-purpose facility that includes a children's centre, library, sports hall, cafe, parish office, and police base. It will also serve as a place of worship for the local Baptist church. The main contractor used FlexiDry screed to allow the floor to dry in just 14 days, meeting their timeline. The development provides enhanced community services and facilities for local residents through funding from various sources.
FlexiDry Floor Screeds were installed at Bethnal Green Technology College as part of its £17 million redevelopment project under the Building Schools for the Future (BSF) programme. The FlexiDry screed was laid on an underfloor heating system to meet the project timeline and allow the school's 900 students to benefit from the completed redevelopment by the end of 2010. The redevelopment aimed to create a unified school building with a central space and resolve circulation issues, while maintaining the historical buildings to provide community access.
FlexiDry produces a floor screed product that offers variable drying times of 7, 14, or 21 days. It allows for light foot traffic after just 12 hours and has increased compressive strength while reducing carbon footprint. FlexiDry has been used in a new Honda showroom helping it achieve high environmental standards, in training facilities to educate students, and in children's centers and nurseries due to its fast drying time.
FlexiDry produces floor screeds that offer variable drying times of 7, 14, or 21 days. They are lightweight, increase strength, and reduce carbon footprint. Recent projects using FlexiDry screeds include One Hyde Park in London and the Greenpower Centre headquarters. Additional information can be found on their website or by contacting them directly.
FlexiDry is a floor screed product that offers variable drying times of 7, 14, or 21 days. It allows for light foot traffic after just 12 hours and improves compressive strength and sustainability over other screed products. Recent projects using FlexiDry include installations at a school, hospital, and technology college in the UK as it is suitable for underfloor heating systems. Additional information can be found on their website or by contacting FlexiDry directly.
FlexiDry is a floor screed product that offers variable drying times of 7, 14, or 21 days. It allows for light foot traffic after just 12 hours and has increased compressive strength while reducing carbon footprint. FlexiDry is suitable for use on underfloor heating systems. Additional information and the latest news about FlexiDry, including case studies, videos, and social media updates can be found on their website or by contacting them directly.
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1. Product Data Sheet
for accelerated dry times
of 7, 14 & 21 days
Tel: 0845 555 5656 www.flexidry.com
Version 003, November 2009 Ⓒ FlexiDry Global Ltd
2. Description
A unique additive enabling accelerated drying and hardening of floor screeding
systems. Suitable for bonded, unbonded, floating and heated screeds. Light foot traffic
can be achieved within 12 hours and suitable for final floor coverings within the
timescales stated on the dosage chart.
Typical Use
Typically used as a levelling screed to receive finished floor coverings such as tiles,
wood flooring, laminate, PVC, natural stone, carpet and a variety of other floor
finishes.
Benefits
• Foot traffic within 12 hours
• Apply final finishes within 7-21 days depending on dosage
• Easy compaction giving more consolidated molecular structure
• Very low shrinkage allowing larger bay sizes
• Stable performance on underfloor heating
• Mixed economy of scale (costs) as one product can be adjusted to facilitate dry times
• Better durability
• Water repellent
• Compatible with cementitious compounds and adhesives
• Thinner screeds can be applied
• Logistical advantage due to low volume requirement
Dosage
F1 (7 days): 175ml of FlexiDry ® per 25kg of Cement
F2 (14 days): 125ml of FlexiDry ® per 25kg of Cement
F3 (21 days): 85ml of FlexiDry ® per 25kg of Cement
Mixing of Material
Materials should be mixed in a forced action mixer such as a screed pump or pan
mix. The correct dosage of FlexiDry ® should be dispersed in a water bucket and
added to the correct sand and cement grades. Mixing time should be approximately
2 minutes, ensuring a good distribution of product and water, adjusted to facilitate
trowelling. See dosage chart above for FlexiDry ® quantities. Materials to be read
in conjunction with BS8204:1 2003 and relevant codes of practice.
Laying of the Screed
Screeds are to be mixed, compacted and finished within the open working time and
should not be re-agitated. A specialist floor screeding contractor is recommended for
the successful application and read in conjunction with BS8204:1 2003.
Compaction of Screed
The screed should be worked and well compacted. Thickness greater than 75mm
would need to be applied in layers of 50mm. Apply the base layer, then roll to
compact and rake to provide key for additional layer(s).
Version 003, November 2009 Ⓒ FlexiDry Global Ltd
3. Reinforcement
Fibre or steel mesh reinforcement as required.
Steel or SBR slurry bond to vertical dayjoints.
Perimeter Expansion/Contraction
10mm polyethylene strip should be used around the perimeter and any columns or
fixed points that reflect through the finished screed.
Bay Sizes
Bay sizes should be read in conjunction with final floor finish guides and pre-
determined on the drawings. To be read in conjunction with correct codes of practice.
Temperature and Humidity
Low or extremely high processing and underground temperature and/or high humidity
may result in longer drying and setting times. By acceleration of the hydration the
different building site conditions are almost regulated. Relative humidity of the air is
essential and a general test should be done to check the remaining moisture ahead of
working with steam-proof toppings.
Safety Information
See separate safety data sheet.
Product information
Material Additive, modified polycarboxylate in water
Bulk density Approx. 1.1 g/cm3
Shape Liquid
A unique additive Colour Black/brown
Label according to Hazardous good
enabling accelerated regulation sheet (GGVS) Hazardous
No hazardous good irritating
material regulation (GefStdN) Further
drying and information see Safety information
Storage Keep between 5°C and 30°C
hardening of floor Shelf life At least 9 months from delivery date
screeding systems. Packaged size
Consumption
Plastic drums of 20 and 1000 liters
See Dosage Table (mixed)
Consistencies Mix to an earthy consistency
Recommended thickness Minimum – 25mm for bonded screed;
Minimum – 40mm for unbonded screed;
Minimum – 60mm for floating and heated screeds.
Minimum over UFH pipes – 30mm
Working temperature +5°C to +30°C
Mixing Forced action mixer Pan/Screed Pump
Pumping Pneumatic
Mortar-consistency Adjust to facilitate trowelling
Open working time Approx. 60-90 minutes depending on dosage
Light Foot Traffic 12 hours
Dry Time F1 7 days
Dry Time F2 14 days
Version 003, November 2009 Ⓒ FlexiDry Global Ltd Dry Time F3 21 days
4. How FlexiDry® Works
The water/cement value expresses the mass ratio to the cement content of the
effective water content within the screed. Therefore the effective water content is the
difference between the total water amount in the fresh screed and the water content
that is absorbed by the aggregate. The cement needs a certain amount of water for
fully setting (hydration). The chemically bonded water is named hydrate water and is
about 18-20 % of the cement weight. To produce the cement gel, one needs a water
amount that is larger than the chemical bonded water amount. The gel water which is
physically bonded is about 15% of the cement weight. Combined with FlexiDry ®
a further part of water molecules is bonded and therefore the chemical and physical
bonded water gets fixed. For a full hydration of the cement about 33-35 % of the
cement volume is necessary which equals to a water/cement value of 0.33-0.35.
With a water/cement value above 0.35 excessive water remains in the capillary
pores and drains. This “excessive” water is responsible for all known disadvantages
among others to include porosity, shrinkage and curling of the screed. By using
FlexiDry ® the water amount per mixture is 50 kg of cement depending on
workability and remaining moisture of the sand between 9 and 20 litres of water.
The analytical water/cement value of 0.35 is at 17.5 litres of water. As further water
is bonded and the hydration is accelerated one can understand the shortened time
frame to reach workability.
With a CM measurement capillary and gel water, react depending on measuring time.
After 10 minutes of read-off time about 1% of gel water will react to acetylene gas
with calcium carbide. Subtract 1.2% until age of screed of 8 days and 1% until age of
screed of 14 days from the measurements.
Consolidation
The necessary water needed for hydration is embedded at the start in the system and
is available for the system for hydration. That means within 25-30 days a bulk of the
bonded water is transformed into hydrate products. Especially in the third hydrate
phase, the transformation into cement stone takes place. Our measurements showed
that about 0.6%-0.75% of the one percent are used for producing cement stone
within the time frame. A smaller part is delivered by diffusion. That means that the
bonding forces of molecules tend to get weaker. The maker of FlexiDry ® accepts
the warranty for the promised features and the effect of the FlexiDry ® Formula.
Disclaimer
Tel: 0845 555 5656 All efforts are made to ensure the information is correct at time of publication
www.flexidry.com and is not intended as a particular specification. Description is for guidelines
only and responsibility for any loss, damage or injury whatsoever, will remain
outside our responsibility.
Version 003, November 2009 Ⓒ FlexiDry Global Ltd