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一、材料:水玻璃:模数:2.0～3.0;比重:1.38以上。氟硅酸钠:粘土熟料粉:(也可以用旧耐火砖破碎成砂粉)。二、配合比及试验结果:
First, the material: Water glass: modulus: 2.0 ~ 3.0; specific gravity: 1.38 above. Sodium fluorosilicate: clay clinker powder: (You can also use old refractory bricks broken into sand). Second, with the ratio and test results: