Building chemical materials

CSA cement, full name is Calcium Sulfoaluminate cement, was invented and developed in China since 1970's. It is 100% cement, get ready to use. As the third generation of cements, it is widely used on construction for decades in China. The cement has been used on concrete for bridges, airports, concrete road repair, winter construction and many other applications where early strength and time needed.As well as high strength concrete, high performance of mortars, like Self levelling compounds,tile adhesives,Non shrinkage grouts,etc. The product obtained by grinding cement clinker obtained by roasting suitable raw material, consisting essentially of anhydrous calcium sulphoaluminate and dicalcium silicate. Suitable gypsum and 0-10% limestone shall be blended with clinker during manufacture of rapid-hardening sulphoaluminate cement. The rapid-hardening cement product is hydraulicity binding material. It has high early strength. The code no is R-SAC. Specific surface are

The Self levelling materials ( Concrete flooring mortar, self levelling compound, self levelling screed ) is the difficult part of mortars. Especially for overlayment. cracking issue is a big problem and exsist on concrete and mortars. Triditional way of producing Self levelling material is based on Portland cement+High alumina cement/CSA cement (CA/CSA cement)+Gypsum. Cracking is hardly controlled. In recent years, we designed a new product called White Anti-Cracking Fast setting Rapid hardening High Belite CSA cement. The product can be 100% instead of "Portland cement+High alumina cement/CSA cement (CA/CSA cement)+Gypsum" Part. Free shrinkage rate is only 1/10-1/8 of Portland cement. Physical Properties Blaine (Fineness) ≥ 480 m2/kg Initial Setting time: ≥ 15 mins Finial Setting time: ≤ 45 mins 28 days Free Expansion Rate （%） In water ≤ 0.08 In air ≥ -0.05 Whiteness ≥70 Grade 32.5 Compressive Strength 4hours ≥12.5Mpa 7days ≥32.5 Mpa 28 days≥40.0 M