Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
High-performance shotcrete and preparation method thereof
The invention discloses high-performance shotcrete and a preparation method thereof, and belongs to the technical field of shotcrete, wherein the shotcrete comprises the following raw material components in parts by weight: 0.8 to 1.5 parts of cement, 2 to 2.5 parts of fine aggregate, 1.5 to 2 parts of coarse aggregate, 0.1 to 0.2 part of fly ash, 0.01 to 0.02 part of a water reducing agent, 0.04 to 0.05 part of a curing agent, 0.04 to 0.05 part of an alkali-free setting accelerator, and 0.4 to 0.45 part of water. The preparation method comprises the following steps: S1, pouring the water reducing agent, the curing agent and the water into a mixing device for mixing; S2, adding the cement, the fine aggregate, the coarse aggregate and the fly ash into the mixing device respectively to obtain a mixed material; and S3, adding the mixed material into a concrete mixer for stirring, then transporting the mixed material to a construction site for construction, and adding the alkali-free setting accelerator before concrete pouring. The problem that the springback amount of existing shotcrete is high is solved.
本发明公开了一种高性能喷射混凝土及其制备方法，属于喷射混凝土技术领域，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；粉煤灰0.1‑0.2份；减水剂0.01‑0.02份；固化剂0.04‑0.05份；无碱速凝剂0.04‑0.05份；水0.4‑0.45份。其制备方法包括以下步骤：S1、将减水剂、固化剂和水倒入混料装置中混合；S2、将水泥、细骨料、粗骨料和粉煤灰分别加入混料装置中，得到混合物料；S3、将混合物料加入到混凝土搅拌机中搅拌，然后运输至施工现场进行施工，并在混凝土浇筑前加入无碱速凝剂。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 preparation method thereof
The invention discloses high-performance shotcrete and a preparation method thereof, and belongs to the technical field of shotcrete, wherein the shotcrete comprises the following raw material components in parts by weight: 0.8 to 1.5 parts of cement, 2 to 2.5 parts of fine aggregate, 1.5 to 2 parts of coarse aggregate, 0.1 to 0.2 part of fly ash, 0.01 to 0.02 part of a water reducing agent, 0.04 to 0.05 part of a curing agent, 0.04 to 0.05 part of an alkali-free setting accelerator, and 0.4 to 0.45 part of water. The preparation method comprises the following steps: S1, pouring the water reducing agent, the curing agent and the water into a mixing device for mixing; S2, adding the cement, the fine aggregate, the coarse aggregate and the fly ash into the mixing device respectively to obtain a mixed material; and S3, adding the mixed material into a concrete mixer for stirring, then transporting the mixed material to a construction site for construction, and adding the alkali-free setting accelerator before concrete pouring. The problem that the springback amount of existing shotcrete is high is solved.
本发明公开了一种高性能喷射混凝土及其制备方法，属于喷射混凝土技术领域，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；粉煤灰0.1‑0.2份；减水剂0.01‑0.02份；固化剂0.04‑0.05份；无碱速凝剂0.04‑0.05份；水0.4‑0.45份。其制备方法包括以下步骤：S1、将减水剂、固化剂和水倒入混料装置中混合；S2、将水泥、细骨料、粗骨料和粉煤灰分别加入混料装置中，得到混合物料；S3、将混合物料加入到混凝土搅拌机中搅拌，然后运输至施工现场进行施工，并在混凝土浇筑前加入无碱速凝剂。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 preparation method thereof
一种高性能喷射混凝土及其制备方法
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)
14.01.2022
Patent
Elektronische Ressource
Chinesisch
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