A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Rapid sealing material and preparation method thereof
The invention relates to the technical field of materials, and discloses a rapid sealing material. The sealing material comprises a composition A and a composition B in a mass ratio of 1:1, the composition A comprises the following components in percentage by mass: 60%-66.7% of water, 24%-38% of sulphoaluminate cement, 1.8%-3.6% of calcium silicate and 1%-1.4% of an expanding agent; the composition B comprises the following components in percentage by mass: 60%-66.7% of water, 4%-6% of lime, 12%-18% of gypsum, 5%-10% of stone powder, 3%-8% of fly ash and 0.1%-1% of a retarder. The material is a pure inorganic material, the reaction temperature is low, and the ignition risk is avoided. The material is a plastic material, large plastic deformation can be allowed under the pressure effect, high residual strength can be maintained without damage, and the supporting capacity on a top plate and the sealing effect on a goaf are continuously kept. The material disclosed by the invention has micro-expansion performance, can be in dense contact with the side top of a roadway and has a good sealing effect.
本发明涉及材料技术领域，公开一种快速密闭材料，包括质量比为1:1的组合物A和组合物B；其中，组合物A包括质量百分比的以下组分：水60％～66.7％，硫铝酸盐水泥24％～38％，硅酸钙1.8％～3.6％，膨胀剂1％～1.4％；组合物B包括质量百分比的以下组分：水60％～66.7％，石灰4％～6％，石膏12％～18％，石粉5％～10％，粉煤灰3％～8％，缓凝剂0.1％～1％。本发明中的材料为纯无机材料，反应温度低，无着火风险。本发明中的材料为塑性材料，在压力作用下可以允许较大的塑性变形，能够维持较高的残余强度而不破坏，持续保持对顶板的支撑能力及对采空区的密闭效果。本发明材料具有微膨胀性能，能够与巷道帮顶接触密实，密闭效果好。
Rapid sealing material and preparation method thereof
The invention relates to the technical field of materials, and discloses a rapid sealing material. The sealing material comprises a composition A and a composition B in a mass ratio of 1:1, the composition A comprises the following components in percentage by mass: 60%-66.7% of water, 24%-38% of sulphoaluminate cement, 1.8%-3.6% of calcium silicate and 1%-1.4% of an expanding agent; the composition B comprises the following components in percentage by mass: 60%-66.7% of water, 4%-6% of lime, 12%-18% of gypsum, 5%-10% of stone powder, 3%-8% of fly ash and 0.1%-1% of a retarder. The material is a pure inorganic material, the reaction temperature is low, and the ignition risk is avoided. The material is a plastic material, large plastic deformation can be allowed under the pressure effect, high residual strength can be maintained without damage, and the supporting capacity on a top plate and the sealing effect on a goaf are continuously kept. The material disclosed by the invention has micro-expansion performance, can be in dense contact with the side top of a roadway and has a good sealing effect.
本发明涉及材料技术领域，公开一种快速密闭材料，包括质量比为1:1的组合物A和组合物B；其中，组合物A包括质量百分比的以下组分：水60％～66.7％，硫铝酸盐水泥24％～38％，硅酸钙1.8％～3.6％，膨胀剂1％～1.4％；组合物B包括质量百分比的以下组分：水60％～66.7％，石灰4％～6％，石膏12％～18％，石粉5％～10％，粉煤灰3％～8％，缓凝剂0.1％～1％。本发明中的材料为纯无机材料，反应温度低，无着火风险。本发明中的材料为塑性材料，在压力作用下可以允许较大的塑性变形，能够维持较高的残余强度而不破坏，持续保持对顶板的支撑能力及对采空区的密闭效果。本发明材料具有微膨胀性能，能够与巷道帮顶接触密实，密闭效果好。
Rapid sealing material and preparation method thereof
一种快速密闭材料及制备方法
HE XIANGNING (author) / ZHAO DIJIE (author) / CHEN YONG (author) / LI HONGWEI (author)
2021-09-21
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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