Home: Shrinkage Compensating Admixtures: SRA-157:
SRA-157
SRA-157 is a liquid shrinkage-reducing admixture, which can be used, in any Portland cement-based product to significantly decrease drying shrinkage. SRA-157 is not expansive material, but rather functions by blocking capillaries of pore water, which is the major mechanism that causes drying shrinkage in concrete. SRA-157 when added to concrete at a rate of 2 % by weight of cementitious can reduce shrinkage (ASTM C 157) by up to 80% at 28 days of age and by up to 50% at one year of age.
ADVANTAGES:
* High level of shrinkage reduction that can eliminate cracking due to drying shrinkage in restrained concrete
* Reduces potential for cracking
* Improves aesthetics
* Increases water tightness of the mix
* Improves durability of the concrete
* Reduces creep and curling of slabs
* Decreases carbonation at the surface of slabs
TECHNICAL DATA SHEET
MSDS
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