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Low-temperature-resistant ultra-high-performance concrete and preparation method thereof
The invention relates to the technical field of concrete, and particularly discloses low-temperature-resistant ultra-high-performance concrete and a preparation method thereof. The low-temperature-resistant ultra-high performance concrete is prepared from the following components: 840 to 880 parts of cement, 145 to 165 parts of steel fiber, 210 to 230 parts of an auxiliary gel material, 1000 to 1140 parts of quartz sand, 10 to 15 parts of an anti-freezing agent aqueous solution, 5 to 10 parts of an auxiliary agent and 160 to 180 parts of water, the antifreezing agent aqueous solution comprises the following components by concentration: 22-28g/L of triethanolamine and 7-11g/L of sodium pyruvate; the preparation method of the auxiliary agent comprises the following steps: uniformly mixing calcium sulphoaluminate, calcium sulfate and an activating agent aqueous solution according to a weight ratio of (5-11): (3-8): 50, reacting at room temperature, and then drying and ball-milling to obtain the auxiliary agent. By utilizing the technical scheme disclosed by the invention, the obtained concrete has excellent low-temperature resistance.
本申请涉及混凝土的技术领域，具体公开了一种抗低温超高性能混凝土及其制备方法。本申请公开的抗低温超高性能混凝土，包括以下组分：水泥840‑880份、钢纤维145‑165份、辅助凝胶材料210‑230份、石英砂1000‑1140份、防冻剂水溶液10‑15份、助剂5‑10份、水160‑180份；防冻剂水溶液包括以下浓度的组分：三乙醇胺22‑28g/L、丙酮酸钠7‑11g/L；助剂的制备方法为：将硫铝酸钙、硫酸钙、活化剂水溶液按照重量比为5‑11：3‑8：50混合均匀，于室温下反应，然后干燥，球磨，得到助剂。利用本申请公开的技术方案，获得的混凝土具有优异的抗低温性能。
Low-temperature-resistant ultra-high-performance concrete and preparation method thereof
The invention relates to the technical field of concrete, and particularly discloses low-temperature-resistant ultra-high-performance concrete and a preparation method thereof. The low-temperature-resistant ultra-high performance concrete is prepared from the following components: 840 to 880 parts of cement, 145 to 165 parts of steel fiber, 210 to 230 parts of an auxiliary gel material, 1000 to 1140 parts of quartz sand, 10 to 15 parts of an anti-freezing agent aqueous solution, 5 to 10 parts of an auxiliary agent and 160 to 180 parts of water, the antifreezing agent aqueous solution comprises the following components by concentration: 22-28g/L of triethanolamine and 7-11g/L of sodium pyruvate; the preparation method of the auxiliary agent comprises the following steps: uniformly mixing calcium sulphoaluminate, calcium sulfate and an activating agent aqueous solution according to a weight ratio of (5-11): (3-8): 50, reacting at room temperature, and then drying and ball-milling to obtain the auxiliary agent. By utilizing the technical scheme disclosed by the invention, the obtained concrete has excellent low-temperature resistance.
本申请涉及混凝土的技术领域，具体公开了一种抗低温超高性能混凝土及其制备方法。本申请公开的抗低温超高性能混凝土，包括以下组分：水泥840‑880份、钢纤维145‑165份、辅助凝胶材料210‑230份、石英砂1000‑1140份、防冻剂水溶液10‑15份、助剂5‑10份、水160‑180份；防冻剂水溶液包括以下浓度的组分：三乙醇胺22‑28g/L、丙酮酸钠7‑11g/L；助剂的制备方法为：将硫铝酸钙、硫酸钙、活化剂水溶液按照重量比为5‑11：3‑8：50混合均匀，于室温下反应，然后干燥，球磨，得到助剂。利用本申请公开的技术方案，获得的混凝土具有优异的抗低温性能。
Low-temperature-resistant ultra-high-performance concrete and preparation method thereof
一种抗低温超高性能混凝土及其制备方法
ZHANG SHUO (author) / GE YUNCHENG (author) / WEN JUNQIANG (author) / PANG YONGLONG (author) / ZHANG ZIXI (author) / CHEN XIWANG (author) / LI YANCHANG (author) / NI KUN (author) / YANG RONGJUN (author)
2024-10-01
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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