Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
High-performance shotcrete and construction method thereof
The invention discloses high-performance shotcrete and a construction method thereof, and belongs to the technical field of tunnel construction, the shotcrete comprises the following raw material components by weight: 0.8-1.5 parts of cement; 2-2.5 parts of fine aggregate; 1.5-2 parts of coarse aggregate; 0.1-0.2 part of silicon powder; 0.01-0.02 part of a water reducing agent; 0.04-0.05 part of a curing agent; 0.04-0.05 part of an accelerator; and 0.4-0.45 part of water. The construction method comprises the following steps: S1, preparation before spraying: treating a sprayed rock surface to remove floating dust and rock debris on the sprayed rock surface; s2, concrete stirring and transportation: stirring the concrete through a full-automatic metering forced type stirring machine; conveying the stirred mixture to a construction site through a concrete transportation tank truck; and S3, spraying operation. The problem that the springback amount of existing sprayed concrete is high is solved.
本发明公开了一种高性能喷射混凝土及其施工方法，属于隧道施工技术领域，该喷射混凝土包括以下原料组分及重量份数：水泥0.8‑1.5份；细骨料2‑2.5份；粗骨料1.5‑2份；硅粉0.1‑0.2份；减水剂0.01‑0.02份；固化剂0.04‑0.05份；速凝剂0.04‑0.05份；水0.4‑0.45份。其施工方法包括以下步骤：S1、喷射前准备：对受喷岩面进行处理，除去受喷岩面上的浮尘、岩屑；S2、混凝土搅拌、运输：通过全自动计量强制式搅拌机搅拌混凝土；通过砼运输罐车将搅拌后的混合物料运送到施工现场；S3、喷射作业。本发明解决了现有喷射混凝土的回弹量较高的问题。
High-performance shotcrete and construction method thereof
The invention discloses high-performance shotcrete and a construction method thereof, and belongs to the technical field of tunnel construction, the shotcrete comprises the following raw material components by weight: 0.8-1.5 parts of cement; 2-2.5 parts of fine aggregate; 1.5-2 parts of coarse aggregate; 0.1-0.2 part of silicon powder; 0.01-0.02 part of a water reducing agent; 0.04-0.05 part of a curing agent; 0.04-0.05 part of an accelerator; and 0.4-0.45 part of water. The construction method comprises the following steps: S1, preparation before spraying: treating a sprayed rock surface to remove floating dust and rock debris on the sprayed rock surface; s2, concrete stirring and transportation: stirring the concrete through a full-automatic metering forced type stirring machine; conveying the stirred mixture to a construction site through a concrete transportation tank truck; and S3, spraying operation. The problem that the springback amount of existing sprayed concrete is high is solved.
本发明公开了一种高性能喷射混凝土及其施工方法，属于隧道施工技术领域，该喷射混凝土包括以下原料组分及重量份数：水泥0.8‑1.5份；细骨料2‑2.5份；粗骨料1.5‑2份；硅粉0.1‑0.2份；减水剂0.01‑0.02份；固化剂0.04‑0.05份；速凝剂0.04‑0.05份；水0.4‑0.45份。其施工方法包括以下步骤：S1、喷射前准备：对受喷岩面进行处理，除去受喷岩面上的浮尘、岩屑；S2、混凝土搅拌、运输：通过全自动计量强制式搅拌机搅拌混凝土；通过砼运输罐车将搅拌后的混合物料运送到施工现场；S3、喷射作业。本发明解决了现有喷射混凝土的回弹量较高的问题。
High-performance shotcrete and construction method thereof
一种高性能喷射混凝土及其施工方法
WU CHUPING (Autor:in) / REN BAOJUN (Autor:in) / LI ZHENGQIU (Autor:in) / LI WEIQIANG (Autor:in) / HUANG FENGWU (Autor:in) / SONG BOLIN (Autor:in) / GUO WANG (Autor:in) / XIONG MAOLIN (Autor:in) / XIAO JINXUAN (Autor:in) / HE HONGLU (Autor:in)
24.12.2021
Patent
Elektronische Ressource
Chinesisch
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