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.
Riteks VMA 42 is a viscosity modifying admixture designed to enable the production of self-compacting concrete. When added to the mix, concrete treated with Riteks VMA 42 is more stable and resistant to segregation.
Riteks Slump Retain 240 is a revolutionary new technology based on significant advances in the admixture industry. When used as part of an admixture system, it provides slump retention without retardation. Slump Retain 240 gives the concrete producer the ability to immediately create the ideal admixture system for fluctuating regional raw materials, environmental conditions and project requirements.