Portland cement Portland cement
The main mineral composition of Portland cement is: tricalcium silicate, dicalcium silicate, tricalcium aluminate, tetracalcium aluminoferrite. The tricalcium silicate determines the strength of the Portland cement within four weeks; the dicalcium silicate exhibits strength after four weeks, and the strength of the three-calcium silicate is about four weeks; the strength of the tricalcium aluminate Play faster, but the strength is low, which plays a certain role in the strength of Portland cement in 1 to 3 days or a little longer; the strength of tetracalcium aluminate is also faster, but the strength is low, on silicon The strength contribution of the acid cement is small.
Portland cement is divided into two types. It is called type I Portland cement without mixing material, code P·I; it is called II with limestone or granulated blast furnace slag mixed material not exceeding 5% of cement quality. Type Portland cement, code P·II.
The titanium wire is mainly composed of nano zinc titanium silk membrane, the polymer material corrosion and acid DM military DP technology made
For chemical, petroleum, pharmaceutical, papermaking, artificial leather, food processing, agricultural products, aquatic products, with acid resistance, wear resistance, corrosion resistance and so on
Titanium wire use: military, medical and sporting goods, glasses, earrings, hair ornaments, electroplating, welding and other industries. Titanium wire has small density, high specific strength and corrosion resistance. Titanium is a very active metal. Its equilibrium potential is very low, and the tendency of thermodynamics corrosion in the medium is very large. But titanium is very stable in many media, such as titanium, which is resistant to corrosion in medium such as oxidizing, neutral and weakly reducing agents.
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