Mudstone stratum shield muck baking-free brick and preparation method thereof
The invention discloses a mudstone stratum shield muck baking-free brick and a preparation method thereof. The mudstone stratum shield muck baking-free brick comprises a dry material, water and an additive, and the mass ratio of the water to the dry material is 0.10-0.15; the mass ratio of the addit...
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Format: | Patent |
Sprache: | chi ; eng |
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Zusammenfassung: | The invention discloses a mudstone stratum shield muck baking-free brick and a preparation method thereof. The mudstone stratum shield muck baking-free brick comprises a dry material, water and an additive, and the mass ratio of the water to the dry material is 0.10-0.15; the mass ratio of the additive to the dry material is 0.1%-0.2%; wherein the dry material comprises the following raw materials in percentage by mass: 50-60% of mud powder; 10%-30% of Portland cement; 10%-20% of river sand; 10%-20% of a mineral admixture; and 0.1%-1% of basalt fiber chopped yarn. The preparation method of the mudstone stratum shield muck baking-free brick comprises the following steps: pretreatment; drying the mud cake; crushing and screening; mixing the raw materials; and carrying out compression molding and maintenance. The compressive strength, breaking strength, softening coefficient and the like of the baking-free brick are remarkably improved, and the problems of poor appearance quality, poor durability and the like of |
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