High Expansive Additive
DENKA POWER CSA TYPE-R is a shrinkage-reducing, high-performance expansive additive used in concrete and mortar.
High expansion CSA-type (50~30% dosage reduction at equivalent expansion rate compared to CSA #20)
Dramatically improves shrinkage compensation (reduces cracking caused by drying shrinkage)
3~8% dosage rate by cement weight; depending on mix proportion and cement affinity