去年,我单位在某钢铁厂承建了一座开坯车间。当时由于工期紧,混凝土量大,采用了阳泉市特种水泥厂按照我国专业标准生产的525号快硬硫铝酸盐水泥。它具有早期强度高,负温、耐久、抗渗、干缩性能好等特征。由于该水泥3天的 Last year, our company built a blanking workshop at a steel plant. At that time, due to the tight schedule and large amount of concrete, No. 525 fast-hard sulphoaluminate cement produced by a special cement plant in Yangquan City in accordance with China’s professional standards was used. It has characteristics of high early strength, negative temperature, durability, impermeability, and good shrinkage properties. Because of the cement for 3 days