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A platform for research: civil engineering, architecture and urbanism
High-strength wet-spraying concrete and preparation method thereof
The invention relates to the technical field of concrete, and particularly discloses high-strength wet-spraying concrete and a preparation method thereof, the high-strength wet-spraying concrete comprises the following raw materials by weight: 300-500 parts of cement, 50-80 parts of fly ash, 30-50 parts of silica fume, 800-1200 parts of fine aggregate, 600-800 parts of coarse aggregate, 2-5 parts of a water reducer, 8-16 parts of reinforced fiber, 10-30 parts of an accelerator, 1-3 parts of cassava starch, 10-30 parts of a reinforcing agent, and 100-200 parts of water; the reinforcing agent is prepared from rice hull ash and superfine calcium carbonate micro powder according to the weight ratio of 1: (1-2), and the preparation method comprises the following steps: uniformly mixing cement and coarse aggregate, adding fly ash, silica fume, fine aggregate and water, uniformly mixing, continuously adding reinforcing fibers, and uniformly mixing to obtain a first mixture; uniformly mixing the first mixture with a water reducing agent, cassava starch and a reinforcing agent to obtain a second mixture; and then uniformly mixing with an accelerator through spraying to prepare the high-strength wet-sprayed concrete. The wet-spraying concrete has the advantage of high strength.
本发明涉及混凝土技术领域，具体公开了一种高强湿喷混凝土及其制备方法，包括以下重量份的原料：水泥300‑500份、粉煤灰50‑80份、硅灰30‑50份、细骨料800‑1200份、粗骨料600‑800份、减水剂2‑5份、增强纤维8‑16份、速凝剂10‑30份、木薯淀粉1‑3份、增强剂10‑30份、水100‑200份；增强剂由重量比为1:(1‑2)的稻壳灰和超细碳酸钙微粉组成，其制备方法为：将水泥、粗骨料混合均匀后加入粉煤灰、硅灰、细骨料以及水混合均匀后，继续加入增强纤维，混合均匀后得到第一混合物；将第一混合物与减水剂、木薯淀粉、增强剂混合，混合均匀后得到第二混合物；后通过喷射与速凝剂混合均匀，制得高强湿喷混凝土；本申请的湿喷混凝土具有强度高的优点。
High-strength wet-spraying concrete and preparation method thereof
The invention relates to the technical field of concrete, and particularly discloses high-strength wet-spraying concrete and a preparation method thereof, the high-strength wet-spraying concrete comprises the following raw materials by weight: 300-500 parts of cement, 50-80 parts of fly ash, 30-50 parts of silica fume, 800-1200 parts of fine aggregate, 600-800 parts of coarse aggregate, 2-5 parts of a water reducer, 8-16 parts of reinforced fiber, 10-30 parts of an accelerator, 1-3 parts of cassava starch, 10-30 parts of a reinforcing agent, and 100-200 parts of water; the reinforcing agent is prepared from rice hull ash and superfine calcium carbonate micro powder according to the weight ratio of 1: (1-2), and the preparation method comprises the following steps: uniformly mixing cement and coarse aggregate, adding fly ash, silica fume, fine aggregate and water, uniformly mixing, continuously adding reinforcing fibers, and uniformly mixing to obtain a first mixture; uniformly mixing the first mixture with a water reducing agent, cassava starch and a reinforcing agent to obtain a second mixture; and then uniformly mixing with an accelerator through spraying to prepare the high-strength wet-sprayed concrete. The wet-spraying concrete has the advantage of high strength.
本发明涉及混凝土技术领域，具体公开了一种高强湿喷混凝土及其制备方法，包括以下重量份的原料：水泥300‑500份、粉煤灰50‑80份、硅灰30‑50份、细骨料800‑1200份、粗骨料600‑800份、减水剂2‑5份、增强纤维8‑16份、速凝剂10‑30份、木薯淀粉1‑3份、增强剂10‑30份、水100‑200份；增强剂由重量比为1:(1‑2)的稻壳灰和超细碳酸钙微粉组成，其制备方法为：将水泥、粗骨料混合均匀后加入粉煤灰、硅灰、细骨料以及水混合均匀后，继续加入增强纤维，混合均匀后得到第一混合物；将第一混合物与减水剂、木薯淀粉、增强剂混合，混合均匀后得到第二混合物；后通过喷射与速凝剂混合均匀，制得高强湿喷混凝土；本申请的湿喷混凝土具有强度高的优点。
High-strength wet-spraying concrete and preparation method thereof
一种高强湿喷混凝土及其制备方法
GAO ZHONGYAO (author) / SONG SENYANG (author) / ZHOU JINFU (author)
2021-12-17
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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