... Main Raw MaterialSilicateTypeSilicate Cement / Portland CementStrength Grade(Mpa)42.5RSGSInspection at loading port on Seller`s costStandardBritish Standards ... , airport, high-rise buildings, large volume concrete engineering; 5. C3S content of clinker high, and the production of ... , frost resistance is strong, short construction period. 32.5/42.5/52.5R ,ASTM C-150standrad silicate Cement Clinker