Portland Cement Supplier
Cement Chemical Characteristics Cement hydration (adding water) leads to a complex chemical reaction that is accompanied by thermal expansion. The UK revised standards for Portland Cements that are commonly used for repairs are as follows: Portland cement–grade 42.5; based on BS 12: 1991 (CEM 1) Portland cement – grade 52.5; based on BS 12: 1991 Portland cement –...