Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Ultrahigh-performance roadway guniting material and construction method thereof
The invention discloses an ultrahigh-performance roadway guniting material and a construction method thereof. The roadway guniting material is prepared from the following components: cement, quartz sand, a water reducing agent, a thickening agent, rubber powder and fibers, the mass ratio of the cement to the quartz sand is 1: 2, and in the roadway guniting material, the water reducing agent can be a polycarboxylic acid high-efficiency water reducing agent; the using amount of the water reducing agent can be 0.1-0.3% of the total mass of the cement and the quartz sand, and the thickening agent is hydroxypropyl methyl cellulose; the use amount of the thickening agent is 0.1-0.3% of the total mass of the cement and the quartz sand, and the rubber powder is redispersible latex powder. The polymer rubber powder and the anti-crack short fibers are introduced into the guniting material, so that the guniting material has certain toughness and anti-crack performance, can adapt to cracking deformation of surrounding rocks, and plays a role in preventing deformation and weathering of the surrounding rocks.
本发明公开了一种超高性能巷道喷浆材料及其施工方法。所述巷道喷浆材料由下述组分制成：水泥、石英砂、减水剂、增稠剂、胶粉和纤维；所述水泥与所述石英砂的质量比为1：2，上述的巷道喷浆材料中，所述减水剂可为聚羧酸高效减水剂；减水剂的用量可为水泥与石英砂总质量的0.1～0.3％，增稠剂为羟丙基甲基纤维素；增稠剂的用量为水泥与石英砂总质量的0.1～0.3％，胶粉为可再分散乳胶粉。本发明在喷浆材料中引入聚合物胶粉和抗裂短纤维，使喷浆材料具有一定的韧性和抗裂性能，能够适应围岩开裂变形，起到防止围岩变形和风化的作用。
Ultrahigh-performance roadway guniting material and construction method thereof
The invention discloses an ultrahigh-performance roadway guniting material and a construction method thereof. The roadway guniting material is prepared from the following components: cement, quartz sand, a water reducing agent, a thickening agent, rubber powder and fibers, the mass ratio of the cement to the quartz sand is 1: 2, and in the roadway guniting material, the water reducing agent can be a polycarboxylic acid high-efficiency water reducing agent; the using amount of the water reducing agent can be 0.1-0.3% of the total mass of the cement and the quartz sand, and the thickening agent is hydroxypropyl methyl cellulose; the use amount of the thickening agent is 0.1-0.3% of the total mass of the cement and the quartz sand, and the rubber powder is redispersible latex powder. The polymer rubber powder and the anti-crack short fibers are introduced into the guniting material, so that the guniting material has certain toughness and anti-crack performance, can adapt to cracking deformation of surrounding rocks, and plays a role in preventing deformation and weathering of the surrounding rocks.
本发明公开了一种超高性能巷道喷浆材料及其施工方法。所述巷道喷浆材料由下述组分制成：水泥、石英砂、减水剂、增稠剂、胶粉和纤维；所述水泥与所述石英砂的质量比为1：2，上述的巷道喷浆材料中，所述减水剂可为聚羧酸高效减水剂；减水剂的用量可为水泥与石英砂总质量的0.1～0.3％，增稠剂为羟丙基甲基纤维素；增稠剂的用量为水泥与石英砂总质量的0.1～0.3％，胶粉为可再分散乳胶粉。本发明在喷浆材料中引入聚合物胶粉和抗裂短纤维，使喷浆材料具有一定的韧性和抗裂性能，能够适应围岩开裂变形，起到防止围岩变形和风化的作用。
Ultrahigh-performance roadway guniting material and construction method thereof
一种超高性能巷道喷浆材料及其施工方法
SHEN DONG (Autor:in) / LI SHANPENG (Autor:in) / ZHANG MINGKUN (Autor:in) / LIU JUNHAI (Autor:in) / YE HUI (Autor:in) / BAI GUANGFENG (Autor:in) / LI HONGJIAO (Autor:in) / LIU XUEWEI (Autor:in) / YU XIAOFENG (Autor:in) / ZHANG YU (Autor:in)
25.05.2021
Patent
Elektronische Ressource
Chinesisch
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