Composite Membranes for Construction

Abstract

The invention discloses a composite coiled material for building. The top layer, the bottom layer and the connecting layer of the composite coiled material form a cavity. The cavity is filled with a curable composite material. The top layer is composed of thick fibers. The connecting layer is prepared from oil-treated alkali-resistant fibers. The curable composite material is divided into upper and lower layers and fills the cavity. The curable composite material contacts with an additive and is cured. The curable composite material contains Sporosarcina pasteurii dry powder. After construction and use, the cured composite material can be subjected to secondary, tertiary and multiple hydration when contacting with water or a specific mixed or synthetic liquid. In hydration, the Sporosarcina pasteurii carries out biomineralization into limestone by urea degradation so that the microcracks of the curable composite material can be self-repaired. The composite coiled material has a repairrate of 30% or more to microcracks of 100 micrometers or less. Water or liquid for hydration is artificially sprayed water or water produced by natural rain, snow and hail and is suitable for variousharsh construction environments.

Description

technical field [0001] The invention relates to a construction material, in particular to a composite coiled material for construction. Background technique [0002] Existing composite materials for construction generally include cement, stone sand, fly ash, dry mortar or commercial concrete, etc. Slope protection, ditches, etc. also use mortared rubble, etc. The concrete needs to be temporarily mixed and stirred when it is used, and manual mixing is used to mix the materials. Inhomogeneity requires a mixer or transportation equipment, etc., and will generate a lot of dust at the same time. The labor intensity of the workers is high, the work efficiency is low, the working environment is poor, and the cost is high. In addition, the existing composite materials for construction are constructed on the surface of the soil, and there is a problem of easy stress cracking during use, especially in harsh special environments such as plateau frozen soil, expansive soil, desert, and ...

AI Technical Summary

Problems solved by technology

[0002] Existing composite materials for construction generally include cement, stone sand, fly ash, dry mortar or commercial concrete, etc. Slope protection, ditches, etc. also use mortared rubble, etc. The concrete needs to be temporarily mixed and stirred when it is used, and manual mixing is used to mix the materials. Inhomogeneous, requires mixer or transportation equipment, etc., and will generate a lot of dust at the same time, the labor intensity of the workers is high, the work efficiency is low, the working environment is poor, and the cost is high

In addition, the existing composite materials for construction are constructed on the surface of the soil, and there is a problem of easy stress cracking during use, especially in harsh special environments such as plateau frozen soil, expansive soil, desert, and steep slopes, due to soil frost heaving or When encountering expansive soil, the soil will deform, causing the composite material to be pressed and propped up, resulting in small cracks and cracks, which cannot be repaired, affecting the life of the material, and need to be improved

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