Sponge cement blanket and preparation method thereof

Abstract

The invention relates to a sponge cement blanket, which comprises an upper-layer fabric, a lower-layer fabric, and a sponge cement layer and a metal wire mesh clamped between the upper-layer fabric and the lower-layer fabric. The sizes of outer contours of the upper-layer fabric and the lower-layer fabric are larger than the sizes of the sponge cement layer and the metal wire mesh; the upper-layerfabric, the sponge cement layer, the metal wire mesh and the lower-layer fabric are sewn together through fiber silk yarns; the metal wire mesh at least comprises a lower-layer metal wire mesh arranged between the lower-layer fabric and the sponge cement layer; the sponge cement layer comprises sponge and cement filling gaps of the sponge, or a mixture of the cement, an accelerator and sodium silicate. The sponge cement blanket is convenient to use, low-cost and high in strength. The invention also relates to a preparation method of the sponge cement blanket, which comprises the steps of firstly preparing materials, then preparing the sponge cement layer on a vibration platform, and finally sewing on a sewing platform, so that the sponge cement blanket is simple and fast to prepare.

Description

technical field [0001] The invention relates to a sponge cement blanket and a preparation method thereof. Background technique [0002] With the development of social economy, the construction engineering industry and civil engineering industry have also developed rapidly, and the quality requirements for construction are getting higher and higher. Ditch, slope protection, mining area, etc. When using existing building composite materials such as concrete and masonry rubble, temporary mixing is required. Manual mixing will make the material mixed unevenly, which will generate a lot of dust. The labor intensity of the workers is relatively high, and the working environment is poor. low efficiency. [0003] In particular, in the existing soft rock roadway support technology, the joints and fissures at the bottom of the soft rock are relatively developed, the stability is poor, the f value is 1.5-4, and there are serious alteration phenomena, and the roadway is extremely unst...

AI Technical Summary

Problems solved by technology

When using existing building composite materials such as concrete and masonry rubble, temporary mixing is required. Manual mixing will make the material mixed unevenly, which will generate a lot of dust. The labor intensity of the workers is relatively high, and the working environment is poor. low efficiency

[0003] In particular, in the existing soft rock roadway support technology, the joints and fissures at the bottom of the soft rock are relatively developed, the stability is poor, the f value is 1.5-4, and there are serious alteration phenomena, and the roadway is extremely unstable during the excavation process. And because it is located in the aquifer and connected with the upper fissure water, the construction is accompanied by a large amount of water, and the allowable exposure time is very short, only 0.5-1h. After the excavation and blasting, serious damage will occur immediately. Large-scale landslides; it is necessary to efficiently complete the support of the roadway. Usually, the anchor-net-spray combined support or the anchor-net-spray plus anchor cable combined support method is used to permanently support the roadway. The efficiency of this method is Low, it is difficult to guarantee the construction quality

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