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CRS减水剂属于非荼系减水剂,由湖北省汉阳四新建材助剂厂生产,分水剂和粉剂两种。我们试用的是水剂。它是一种非缓凝非加气性超塑化剂,对水泥具有极好的分散性,对钢筋无锈蚀作用。在混凝土中掺入0.15%,便可节约水泥21～36公斤/米~3,减水率为18.7～29.4%,3天强度提高42～138%,28天强度提高21～67%。试验分物化检验、离心制管及内压检测三部分。 1.所用原材料硫铝酸盐自应力水泥石家庄水泥制品厂产,比表面积大于3700厘米~2/克,SO_3含量为19.5～21.5%,A1_2O_3含量为20～23%。砂产地湖南岳阳,含泥量不大于0.5%,细度模量2.8。石湖北汉阳的瓜米石,含泥量不大于0.5
CRS Water Reducing Agent is non-viscous water-reducing agent. It is produced by Hanyang Sixin Building Materials Auxiliary Plant in Hubei Province. It is divided into water-repellent agent and powder agent. We tried the liquid agent. It is a non-retarding non-aerating superplasticizer, which has excellent dispersibility to cement and no corrosion to steel. Incorporation of 0.15% in concrete can save 21 to 36 kg/m3 of cement, a water reduction rate of 18.7 to 29.4%, a strength increase of 42 to 138% for 3 days, and a strength increase of 21 to 67% for 28 days. The test is divided into three parts: biochemical test, centrifuge tube and internal pressure test. 1. The raw material sulphoaluminate used is produced from Shijiazhuang Cement Product Factory. The specific surface area is greater than 3700 cm-2/g, the content of SO3 is 19.5-21.5%, and the content of A1_2O_3 is 20-23%. Sand produced in Yueyang, Hunan, containing not more than 0.5% mud, fineness modulus 2.8. The stone stone of Hanyang in Hubei is not more than 0.5