H&X black silicon carbide,H&X silicon carbide powder,H&X calcium silicon

Black silicon carbide is quartz sand, petroleum coke and quality silica as the main raw material in electric arc furnace smelting. Its hardness between corundum and diamond, the mechanical strength is higher than corundum, brittle and sharp. Black silicon carbide SiC containing approximately 98.5% higher than its toughness green silicon carbide, mostly for processing low tensile strength of the material, such as glass, ceramics, stone, refractory materials, cast iron and non-ferrous metals.

2013年12月30日星期一

Review of Corrosion THAUMASITE type sulphate

Abstract: The current research status of white fused alumina suppliers thaumasite sulfate corrosion stone type were reviewed, raised some issues to be studied, called for the country to strengthen investigation and research in this area to explore measures to prevent THAUMASITE type of corrosion .
Keywords: thaumasite sulfate attack concrete
DOI: TU52801
Snapshot text:
Introduction
Sulfate corrosion of black silicon carbide manufacturers or mortar, there are two forms, namely ettringite type corrosion and THAUMASITE type corrosion. Ettringite type of corrosion is due to the environment of cement sulphate and calcium hydroxide reacts gypsum, plaster and these ettringite in hydrated calcium aluminate cement reacts with (C2A · 3CaSO4 · 32H2O) crystal , its volume increased more than 1.5 times the original volume.

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Brown Corundum

2013年12月30日星期一

Review of Corrosion THAUMASITE type sulphate

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