Results for: "Concrete Admixtures" in "Johannesburg-North, South Africa"

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35 Westfield Rd Ext 11

Longmeadow B Est

Westfield Rd Ext 11

Edenvale

2128

Gauteng

South Africa

Concrete Admixtures 

Admixtures are ingredients other than water and cement that are added to the mixture before or during mixing to help control the set time and other aspects of fresh concrete.
 
Pouring concrete can be a time sensitive project and with unexpected delays it can cause many problems. With the use of admixtures you have more control over the concrete. They can also improve the performance of problem concrete by modifying its characteristics and enhancing workability.
 
There are many reasons why admixtures are added to cement. Some of these reasons are to reduce the cost of concrete construction, to achieve certain properties and to maintain the quality of concrete during mixing, transporting and placing in unfavorable weather conditions.
 
Concrete admixtures are available in powder and liquid form. They are typically added to concrete to give it certain characteristics that are not obtainable with plain concrete mixes. Common admixtures include accelerating admixtures, retarding admixtures and water reducing admixtures. 
 
Certain admixtures such as pigments, pumping aids and expansive agents are used only in very small amounts. They vary widely in chemical composition and many perform more than one function. 
 
The most  basic admixtures are chemical and mineral. Mineral admixtures are added to concrete in large amounts to enhance the workability of fresh concrete. Chemical admixtures are added to concrete is small amounts mainly to control the setting time. 
 
The effectiveness of an admixture depends on many factors including the type and amount of cement, mixing time and water content. 
 
Admixtures are usually stored on site in storage tanks and should be protected against harsh weather conditions. 
 
To find concrete admixtures in South Africa, browse our Yellowpages Listings. 

Concrete Admixtures 

Admixtures are ingredients other than water and cement that are added to the mixture before or during mixing to help control the set time and other aspects of fresh concrete.
 
Pouring concrete can be a time sensitive project and with unexpected delays it can cause many problems. With the use of admixtures you have more control over the concrete. They can also improve the performance of problem concrete by modifying its characteristics and enhancing workability.
 
There are many reasons why admixtures are added to cement. Some of these reasons are to reduce the cost of concrete construction, to achieve certain properties and to maintain the quality of concrete during mixing, transporting and placing in unfavorable weather conditions.
 
Concrete admixtures are available in powder and liquid form. They are typically added to concrete to give it certain characteristics that are not obtainable with plain concrete mixes. Common admixtures include accelerating admixtures, retarding admixtures and water reducing admixtures. 
 
Certain admixtures such as pigments, pumping aids and expansive agents are used only in very small amounts. They vary widely in chemical composition and many perform more than one function. 
 
The most  basic admixtures are chemical and mineral. Mineral admixtures are added to concrete in large amounts to enhance the workability of fresh concrete. Chemical admixtures are added to concrete is small amounts mainly to control the setting time. 
 
The effectiveness of an admixture depends on many factors including the type and amount of cement, mixing time and water content. 
 
Admixtures are usually stored on site in storage tanks and should be protected against harsh weather conditions. 
 
To find concrete admixtures in South Africa, browse our Yellowpages Listings. 

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