Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Preparation method of early-strength thin spraying material for reinforcing, supporting and sealing mine roadway
The invention discloses a preparation method of an early-strength thin spraying material for reinforcing, supporting and sealing a mine roadway, and relates to the technical field of thin spraying material preparation. The thin spraying material is prepared by mixing the following substances in parts by mass: 45-55 parts of general purpose Portland cement; 25-30 parts of tailing fine sand; 6 to 16 parts of fly ash; 5-15 parts of an inorganic filler; 0.05 to 0.15 part of a thickening agent; 0.5 to 1.5 parts of an accelerator; 0.5 to 2 parts of redispersible latex powder; 0.2 to 0.6 part of a water reducing agent; 0.1 to 0.4 part of glass fiber; the ratio of water to materials is (1: 4)-(1: 6). When in use, the prepared raw materials are prepared into slurry, then the slurry is sprayed on site, and the prepared slurry needs to be sprayed within 90 minutes. The thin spraying material prepared by the invention has excellent hydration film forming property, high tensile strength and bonding strength, high early strength, no springback, smooth surface, low cost, safety and reliability, and can be quickly cured.
本发明公开了一种用于矿山巷道加固支护封闭的早强薄喷材料制备方法，涉及薄喷材料制备技术领域。该薄喷材料由如下质量组分的物质混合制成：通用硅酸盐水泥45～55份；尾矿细砂25～30份；粉煤灰6～16份；无机填料5～15份；增稠剂0.05～0.15份；速凝剂0.5～1.5份；可再分散乳胶粉0.5～2份；减水剂0.2～0.6份；玻璃纤维0.1～0.4份；余量为水，水料比为1:4～1:6。使用时先将配置好的原料配置成浆料，然后在现场进行喷涂，配置的浆料需在90min内喷涂完毕。本发明制备的薄喷材料具有优良的水化成膜性，其抗拉强度和粘结强度强，能够快速固化，早期强度高、不回弹，表面光滑，成本低且安全可靠。
Preparation method of early-strength thin spraying material for reinforcing, supporting and sealing mine roadway
The invention discloses a preparation method of an early-strength thin spraying material for reinforcing, supporting and sealing a mine roadway, and relates to the technical field of thin spraying material preparation. The thin spraying material is prepared by mixing the following substances in parts by mass: 45-55 parts of general purpose Portland cement; 25-30 parts of tailing fine sand; 6 to 16 parts of fly ash; 5-15 parts of an inorganic filler; 0.05 to 0.15 part of a thickening agent; 0.5 to 1.5 parts of an accelerator; 0.5 to 2 parts of redispersible latex powder; 0.2 to 0.6 part of a water reducing agent; 0.1 to 0.4 part of glass fiber; the ratio of water to materials is (1: 4)-(1: 6). When in use, the prepared raw materials are prepared into slurry, then the slurry is sprayed on site, and the prepared slurry needs to be sprayed within 90 minutes. The thin spraying material prepared by the invention has excellent hydration film forming property, high tensile strength and bonding strength, high early strength, no springback, smooth surface, low cost, safety and reliability, and can be quickly cured.
本发明公开了一种用于矿山巷道加固支护封闭的早强薄喷材料制备方法，涉及薄喷材料制备技术领域。该薄喷材料由如下质量组分的物质混合制成：通用硅酸盐水泥45～55份；尾矿细砂25～30份；粉煤灰6～16份；无机填料5～15份；增稠剂0.05～0.15份；速凝剂0.5～1.5份；可再分散乳胶粉0.5～2份；减水剂0.2～0.6份；玻璃纤维0.1～0.4份；余量为水，水料比为1:4～1:6。使用时先将配置好的原料配置成浆料，然后在现场进行喷涂，配置的浆料需在90min内喷涂完毕。本发明制备的薄喷材料具有优良的水化成膜性，其抗拉强度和粘结强度强，能够快速固化，早期强度高、不回弹，表面光滑，成本低且安全可靠。
Preparation method of early-strength thin spraying material for reinforcing, supporting and sealing mine roadway
一种用于矿山巷道加固支护封闭的早强薄喷材料制备方法
LI SHENGBAI (Autor:in) / LI SHENGXU (Autor:in) / ZHENG TONGLIN (Autor:in) / LI WENJUAN (Autor:in)
25.04.2023
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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