Product Group features
- Minimize the cracking caused by drying shrinkage (Shrinkage compensation)
- Induces a compressive stress in the system if properly restrained (Chemical Pre-stress)
- Increase water tightness
DENKA CSA
"DENKA CSA#20 is a calcium sulphoaluminate, based expansive agent made by the Japanese company DENKA. It works compensating the hydraulic shrinkage of cementitious systems, and it prevents cracks formation. DENKA CSA#20 minerals hydration forms ettringite (3CaO · Al2O3 · 3CaSO4 · 32H2O), it reduces hydraulic shrinkage, and furthermore it acts expanding its volume. The effect by using DENKA CSA#20 is to densify the matrix by ettringite formation, to reduce the shrinkage, and to induce chemical stress to the product by restrained expansion."
Do you want to see more?
Full access also means:
