Application formula of refractory concrete

1.Alumina cement refractory concrete
 Binder: more than 42.5 alumina cement, the mixing ratio is 15%~20%. Aggregate: level two, level three or two level bauxite chamotte waste high alumina brick and waste brick made of refractory clay. Fine aggregate particle size less than 5mm; with the ratio of 30% ~ 40%. aggregate size is 5 ~ 15mm; mixture ratio is 30% ~ 40%.Powder: the characteristics and use of this type of refractory concrete is: low price, a wide range of materials, construction convenience.
2.Portland cement refractory concrete
Binder: above 42.5 Portland cement, its mix ratio is from 15% to 20%.Aggregate: Grade A, grade two clay clinker or waste refractory bricks. Made of fine aggregate particle size less than 5mm; with the ratio of 35% ~ 40%. of coarse aggregate ratio of 30%~40%. with 5~15mm;Powder: the same aggregate. The particle size of less than 0.088mm and not less than 70%; the ratio is less than or equal to 15%. Portland cement refractory concrete characteristic and the application scope is: low price, convenient construction. It is applicable to various parts of the refractory layer of the boiler.
3.Slag cement refractory concrete
Binder: more than 42.5 slag cement, its mix ratio is from 16% to 20%.Aggregate: grade two, three grade clay clinker or waste refractory bricks. Fine aggregate particle size less than 5mm; with the ratio of 35% ~ 40%. aggregate size is 5 ~ 15mm with a 45%. ratio of 40%;Powder: the characteristics and use of this type of refractory concrete is: low price, a wide range of materials, construction convenience
4.Low calcium aluminate cement refractory concrete
Binder: No. 42.5 above the low calcium aluminate cement, the mixing ratio is 12% ~ 20%.Aggregate: grade two, three grade bauxite or waste aluminum bricks. Fine aggregate, the particle size of less than 5mm; mixture ratio is 30% ~ 40%. coarse aggregate: diameter of 5~15mm; with the ratio of 30% to 40%.Powder: the same aggregate, the particle size of less than 0.088mm and not less than 70%, the ratio is 0 ~ 15%. of the refractory concrete, the refractory waste than cement concrete with high alumina refractory, in addition to the application of boiler parts of the refractory layer, it can be used in the burner nozzle.
5.Heat resistant cement refractory concrete
Binder: heat resistant cement above 52.5, the mixing ratio of 25% ~ 30%.Aggregate: first grade, two grade clay clinker or waste refractory clay brick. Fine aggregate, its particle size is less than 5mm; mix ratio of 35% ~ 40%. coarse aggregate, grain size is from 5 to 15mm; mix ratio is from 30% to 40%.Powder: can not. This kind of refractory concrete construction is convenient, it is suitable for various parts of the boiler refractory layer.
Heat insulation lining is usually 4 parts of the lining of the 1 cement.Add 5% of the ceramic fiber cotton in each formula, increase the crack resistance of concrete. Refractory lining refractory cement and sand, here can not be called sand, he can only be called solid material, there is a distinction between grain size.

Taurus Refractory ramming mass Factory mainly engaged in professional manufacturer of development, production and sales of the refractory mixture such as melting copper, aluminum and zinc furnace lining. And supply castable refractory for copper smelting, ramming mass for molten copper,fire clay,refractory mortar, refractory cement ,refractory mixture, refractory concrete and silica sand for copper smelting.
Website: http://www.jnrefractory.com  
Contact: Mr. Niu
Tel: +86-371-64372566
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Email: info@jnrefractory.com
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