High-pressure efficient batch molding method for hollow bricks on basis of microbial soil fixation

Abstract

The invention discloses a high-pressure efficient batch molding method for hollow bricks on the basis of microbial soil fixation. The method comprises the following steps: 1) preparing required materials for molds; 2) assembling organic glass plates with holes; 3) cutting out geotextile I and placing the geotextile I in mold cavity units of the hollow bricks; 4) mounting PVC pipes in the mold cavities; 5) adding sandy soil to cavities defined by the geotextile I; 6) pouring prepared bacteria into sample molds; 7) placing two or four parallel wetted sample molds in a sealed reaction box; 8) soaking multiple layers of mold groups in a chemical solution under 2 atm; 9) forming the hollow bricks based on microbial soil fixation after reaction for 3 days. Compared with the traditional hollow bricks, the hollow bricks which are molded efficiently in a batch manner under high pressure on the basis of microbial soil fixation do not need high-temperature sintering molding, so that air pollutionis reduced, environment is protected, and the method is ecological and environmentally friendly.

Description

technical field [0001] The invention relates to a method for forming hollow bricks, in particular to a method for forming high-pressure microbial soil-fixing hollow bricks in batches with high efficiency. Background technique [0002] my country is in a period of rapid economic development, and the demand for construction land is constantly expanding, requiring more infrastructure construction to meet people's production and living needs. However, today's construction land resources are very limited, which requires land or The sand is solidified and improved. Traditional soil improvement methods often need to add a series of polluting chemical components, which may cause water pollution problems and even affect human health. [0003] The scientific research team of the project team is studying new environment-friendly soil and sand reinforcement technology, using one of the biomineralization processes that exist widely in nature, the microbial-induced calcium carbonate preci...

AI Technical Summary

Problems solved by technology

[0005] At present, cement and sintered shale solid bricks and hollow bricks, which are widely used in Chinese construction projects, need to destroy the natural environmental resources of the earth's surface during the process of raw material extraction, product production, and component processing, and generate a large amount of energy during the production process. Smoke powder consumes a lot of high-temperature energy and seriously pollutes the environment

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