Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Non-fired and non-autoclaved calcium carbide sludge brick and preparation method thereof
The invention discloses a non-fired and non-autoclaved calcium carbide sludge brick and a preparation method thereof. The calcium carbide sludge brick comprises components in percentage by mass as follows: 27.3%-31.5% of calcium carbide sludge, 53.7%-58.3% of aggregate, 13.2%-15.7% of a cement/mineral powder mixture and 0.5%-0.7% of an additive, wherein the additive is a mixture of anhydrous sodium sulfate, alums and a curing agent; and the aggregate is one or more of industrial mineral slag, crushed stone and river sand. The preparation method of the non-fired and non-autoclaved calcium carbide sludge brick comprises steps as follows: S1, the calcium carbide sludge is extruded and smashed; S2, the extruded and smashed calcium carbide sludgeand the aggregate are mixed and stirred for 2-4 minutes; S3, a material prepared in S2 is mixed with the additive and the cement/mineral powder mixture and stirred for 1-3 minutes; S4, extruding forming is performed, consistency of the water content in different positions of a hopper is kept through spraying and watering, and the mass ratio of water to the material prepared in the S3 is (1:8)-(2:27). Raw materials are easy to prepare, the cost is low, main performance parameters meet the national standard, the preparation method is simple and easy to operate, the efficiency is high, energy consumption is reduced due to no need of firing and autoclaving, and environmental pollution is reduced.
Non-fired and non-autoclaved calcium carbide sludge brick and preparation method thereof
The invention discloses a non-fired and non-autoclaved calcium carbide sludge brick and a preparation method thereof. The calcium carbide sludge brick comprises components in percentage by mass as follows: 27.3%-31.5% of calcium carbide sludge, 53.7%-58.3% of aggregate, 13.2%-15.7% of a cement/mineral powder mixture and 0.5%-0.7% of an additive, wherein the additive is a mixture of anhydrous sodium sulfate, alums and a curing agent; and the aggregate is one or more of industrial mineral slag, crushed stone and river sand. The preparation method of the non-fired and non-autoclaved calcium carbide sludge brick comprises steps as follows: S1, the calcium carbide sludge is extruded and smashed; S2, the extruded and smashed calcium carbide sludgeand the aggregate are mixed and stirred for 2-4 minutes; S3, a material prepared in S2 is mixed with the additive and the cement/mineral powder mixture and stirred for 1-3 minutes; S4, extruding forming is performed, consistency of the water content in different positions of a hopper is kept through spraying and watering, and the mass ratio of water to the material prepared in the S3 is (1:8)-(2:27). Raw materials are easy to prepare, the cost is low, main performance parameters meet the national standard, the preparation method is simple and easy to operate, the efficiency is high, energy consumption is reduced due to no need of firing and autoclaving, and environmental pollution is reduced.
Non-fired and non-autoclaved calcium carbide sludge brick and preparation method thereof
HUANG SHAOLONG (Autor:in) / HUANG YU (Autor:in)
01.04.2015
Patent
Elektronische Ressource
Englisch
IPC:
C04B
Kalk
,
LIME
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