Red mud permeable brick and preparation method thereof

Abstract

The invention discloses a red mud permeable brick and a preparation method thereof, and belongs to the technical field of building materials and construction. The red mud permeable brick comprises the following raw materials in percentage by weight: 50 to 90 weight percent of red mud, 3 to 20 weight percent of cement, 0 to 20 weight percent of sand, 0.03 to 0.16 weight percent of admixture, and 5 to 40 weight percent of water. The preparation method comprises the following steps of: fully mixing a certain amount of cement, admixture and the like and the red mud, molding the mixture by compacting, pressing or compacting and pressing, and obtaining a red mud permeable brick pavement material product by drying. Compared with the conventional red mud sintered brick, the red mud permeable brick has the advantages of high utilization rate of the red mud, simplicity in production process and low cost; and the invention has significance for improving the comprehensive utilization of the red mud and reducing environmental pollution of red mud discharge.

Description

technical field [0001] The invention relates to resource utilization of industrial waste residues, belongs to the field of building materials, and mainly refers to a red mud permeable brick and a preparation method thereof. Background technique [0002] In order to implement the State Council's "Nonferrous Metals Industry Adjustment and Revitalization Plan", improve the comprehensive utilization rate and comprehensive utilization technology level of red mud, reduce the impact of red mud stockpiling on the environment and safety, and promote the comprehensive utilization of red mud, industry and informatization The Ministry of Science and Technology jointly issued the "Guidelines for the Comprehensive Utilization of Red Mud" on November 26, 2010, which has important guiding significance for comprehensively promoting the comprehensive utilization of red mud in my country. [0003] The comprehensive utilization of red mud is a permanent solution to environmental pollution and sa...

AI Technical Summary

Problems solved by technology

Red mud can produce unburned bricks and sintered bricks. At present, the amount of red mud mixed in unburned bricks is generally below 40%. The utilization rate of red mud is low, and the process is complicated and the economic cost is high, so it is difficult to realize industrialization.