Construction method of red mud-based cast-in-place light soil

Abstract

The invention discloses a construction method of red mud-based cast-in-place light soil. The construction method comprises the following steps: 1) dividing a construction site into a plurality of working areas by using templates; 2) mixing the red mud slurry with an excitant to obtain red mud slurry; 3) foaming the foaming agent solution by a foaming machine to obtain foam; 4) mixing the red mud slurry obtained in the step 2) with the foam obtained in the step 3) to obtain red mud-based foam slurry; and 5) conveying the red mud-based foam slurry obtained in the step 4) to the working area in the step 1), pouring, molding to obtain the red mud-based cast-in-place light soil, and curing. The red mud-based cast-in-place light soil can meet the strength requirement of the light soil, protect the environment and save the cost. When the red mud-based cast-in-place light soil is adopted for construction, very simple, convenient and efficient continuous pouring can be carried out, and the pouring quality of the red mud-based cast-in-place light soil meets the requirements of field construction.

Description

technical field [0001] The invention relates to the technical field of construction, in particular to a construction method of red mud-based cast-in-place lightweight soil. Background technique [0002] Red mud is the waste residue produced during the production of alumina. It is red because it contains a large amount of iron oxide, so it is called red mud. Depending on the ore grade, production method, and technical level, most production plants produce 1 to 2 tons of red mud for every 1 ton of alumina produced. Red mud is a solid residue of iron, calcium, aluminum and other compounds and silica, which has the characteristics of strong alkalinity and high salinity. It is estimated that the red mud produced by the alumina industry in the world exceeds 6×10 7 Ton. At present, the country's accumulated stockpile has exceeded 1.19 billion tons, and the annual increase in red mud discharge is more than 45 million tons. [0003] People are increasingly concerned about the har...

AI Technical Summary

Problems solved by technology

[0004] In order to overcome the problems of red mud stacking and resource utilization in the prior art, the purpose of the present invention is to provide a construction method of red mud-based cast-in-place lightweight soil

Images