Quick hardening sulphoaluminate cement

Quick hardening sulphoaluminate cement My company produced special cement for the Beijing Bird's Nest ProjectRapid-hardening Sulphoaluminate Cement Table 1-1 The Basic Requirements of National Standard GB20472-2006 on the Performances of Rapid-hardening Sulphoaluminate Cement StrengthSpecific Surface Area (m2/kg)Setting Time (min)Compressive Strength (Mpa)Breaking Strength (Mpa)GradeInitialFinal1day2 days28 days1 day3 days28 days42.5> 350> 25< 1803342.44566.5752.5> 350> 25<1804252.5556.577.562.5> 350> 25<18050626577.5872.5> 350> 25<1805672.5757.588.5 Rapid-hardening sulphoaluminate cement is mainly used in: (1) The special projects, such as rush-repair works, urgent projects, winter construction works, railway tunnel projects, anticorrosive projects, etc. (2) The production of electric poles and other cement parts, GRC decorative components, decorative wallboards; (3) The production of GRC products such as, cast-in-place concrete cored mandrel, GRC wallboards, ventilating flue, etc; (4) The configuration of special project materials.