The mixture proportions per cu yd consisted of 752 lb of Type II portland cement
, 2,300 lb of fine sand, and 302 gal of water.
The RMC Research and Education Foundation-funded testing spanned three phases involving evaluation of concrete mixtures designed with Type II portland cement
, slag cement and Class F fly ash.
"Using what would be considered a normal amount of water, the fineness of the Type II portland cement
and boron carbide powder drove a dosage of 300 ounces per hundred weight of cement of Sika Viscocrete 2100 polycarboxylate.
This belite content is much higher than in Type I or Type II portland cements
, which are the most commonly used among the ASTM C150 products.
"Type I and Type II portland cements
comprise both dicalcium and tricalcium silicates," explains CoolCure developer and Silicone Solutions President David Brassard, who is commercializing the admixture through a subsidiary, New Technology Solutions LLC.