Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Super early strength concrete and preparation method thereof
The invention discloses super-early-strength concrete and a preparation method, the super-early-strength concrete comprises the following raw materials: a cementing material, aggregate, a composite early strength agent and water, and the cementing material comprises sulphoaluminate cement and Portland cement in a weight ratio of 100: (0-25); the aggregate comprises a coarse aggregate and a fine aggregate, the fine aggregate accounts for 31-34 wt% of the aggregate, the fine aggregate comprises natural river sand and rubber particles, and the rubber particles account for 0-5% of the volume of the natural river sand by volume; the composite early strength agent comprises lithium carbonate, calcium formate, sodium gluconate and a polycarboxylate superplasticizer; in terms of each cubic meter, the weight of the gel material is 780-850 kg, and the weight of the aggregate is 1350-1450 kg; lithium carbonate, calcium formate and sodium gluconate account for 0.15 wt% of the cementing material, the polycarboxylic acid water reducer accounts for 1.0 wt% of the cementing material, and the weight ratio of water to the cementing material is 0.3. The super-early-strength concrete disclosed by the invention not only has relatively high early strength, but also is relatively low in cost and has certain repairing capacity. And the preparation method of the super-early-strength concrete is simple and efficient.
本发明公开了一种超早强混凝土及制备方法，超早强混凝土原料包括胶凝材料、骨料、复合早强剂和水，胶凝材料包括重量比为100：0~25的硫铝酸盐水泥和硅酸盐水泥；骨料包括粗骨料和细骨料，细骨料占骨料的31wt%~34wt%，细骨料包括天然河砂和橡胶颗粒，橡胶颗粒按体积计算且占所述天然河砂体积的0‑5%；复合早强剂包括碳酸锂、甲酸钙、葡萄糖酸钠、聚羧酸高效减水剂；以每一立方米计，凝胶材料重量为780~850kg，骨料重量为1350~1450kg；碳酸锂、甲酸钙和葡萄糖酸钠均为胶凝材料的0.15wt%，聚羧酸减水剂为胶凝材料的1.0wt%，水与胶凝材料的重量比为0.3。本发明超早强混凝土不仅具有较高的早期强度，且成本较低，具有一定的修复能力。并且本发明超早强混凝土制备方法简单、高效。
Super early strength concrete and preparation method thereof
The invention discloses super-early-strength concrete and a preparation method, the super-early-strength concrete comprises the following raw materials: a cementing material, aggregate, a composite early strength agent and water, and the cementing material comprises sulphoaluminate cement and Portland cement in a weight ratio of 100: (0-25); the aggregate comprises a coarse aggregate and a fine aggregate, the fine aggregate accounts for 31-34 wt% of the aggregate, the fine aggregate comprises natural river sand and rubber particles, and the rubber particles account for 0-5% of the volume of the natural river sand by volume; the composite early strength agent comprises lithium carbonate, calcium formate, sodium gluconate and a polycarboxylate superplasticizer; in terms of each cubic meter, the weight of the gel material is 780-850 kg, and the weight of the aggregate is 1350-1450 kg; lithium carbonate, calcium formate and sodium gluconate account for 0.15 wt% of the cementing material, the polycarboxylic acid water reducer accounts for 1.0 wt% of the cementing material, and the weight ratio of water to the cementing material is 0.3. The super-early-strength concrete disclosed by the invention not only has relatively high early strength, but also is relatively low in cost and has certain repairing capacity. And the preparation method of the super-early-strength concrete is simple and efficient.
本发明公开了一种超早强混凝土及制备方法，超早强混凝土原料包括胶凝材料、骨料、复合早强剂和水，胶凝材料包括重量比为100：0~25的硫铝酸盐水泥和硅酸盐水泥；骨料包括粗骨料和细骨料，细骨料占骨料的31wt%~34wt%，细骨料包括天然河砂和橡胶颗粒，橡胶颗粒按体积计算且占所述天然河砂体积的0‑5%；复合早强剂包括碳酸锂、甲酸钙、葡萄糖酸钠、聚羧酸高效减水剂；以每一立方米计，凝胶材料重量为780~850kg，骨料重量为1350~1450kg；碳酸锂、甲酸钙和葡萄糖酸钠均为胶凝材料的0.15wt%，聚羧酸减水剂为胶凝材料的1.0wt%，水与胶凝材料的重量比为0.3。本发明超早强混凝土不仅具有较高的早期强度，且成本较低，具有一定的修复能力。并且本发明超早强混凝土制备方法简单、高效。
Super early strength concrete and preparation method thereof
一种超早强混凝土及其制备方法
LU JUNJIE (Autor:in) / ZHAO ZHONGYU (Autor:in) / MI ZHAO (Autor:in) / ZHANG WEILIANG (Autor:in) / XIONG ZHE (Autor:in) / ZHANG BAIFA (Autor:in) / LI LIJUAN (Autor:in) / LIU FENG (Autor:in)
05.12.2023
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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