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 relates to the field of concrete, and particularly discloses super-early-strength concrete and a preparation method thereof. The super-early-strength concrete is prepared from the following raw materials in parts by weight: 14 to 20 parts of sulphoaluminate cement, 13 to 28 parts of Portland cement, 10 to 20 parts of quartz sand, 3 to 8 parts of polyvinyl alcohol fiber, 1.5 to 3.2 parts of polycarboxylic acid type water reducing agent, 0.8 to 2 parts of lithium carbonate, 8 to 10 parts of magnesium sulfate material, 5 to 8 parts of modified polystyrene, 20 to 30 parts of water and 1 to 2 parts of foaming agent. The preparation method comprises the following steps: uniformly mixing and stirring the sulphoaluminate cement, the Portland cement, the quartz sand and the water of which the water temperature is controlled at 80-90 DEG C, adding the modified polystyrene and the foaming agent, stirring for 3-5 minutes, continuously adding the polyvinyl alcohol fiber, the polycarboxylate superplasticizer and the magnesium sulfate material, and uniformly stirring to obtain the product. The composition can be used for pavement maintenance and first-aid repair operation, and has the advantages of high early strength and stable performance development.
本申请涉及混凝土领域，具体公开了一种超早强混凝土及其制备方法。一种超早强混凝土及其制备方法包括如下重量份原料：硫铝酸盐水泥14‑20份、硅酸盐水泥13‑28份、石英砂10‑20份、聚乙烯醇纤维3‑8份、聚羧酸系减水剂1.5‑3.2份、碳酸锂0.8‑2份、硫酸镁材料8‑10份、改性聚苯乙烯5‑8份、水20‑30份、发泡剂1‑2份；其制备方法为取硫铝酸盐水泥、硅酸盐水泥、石英砂以及水温控制在80‑90℃的水混合搅拌均匀，加入改性聚苯乙烯与发泡剂搅拌3‑5min后，继续加入聚乙烯醇纤维、聚羧酸减水剂、硫酸镁材料搅拌均匀制得。本申请的组合物可用于路面维护、抢修作业，其具有早期强度高、性能发展稳定的优点。
Super early strength concrete and preparation method thereof
The invention relates to the field of concrete, and particularly discloses super-early-strength concrete and a preparation method thereof. The super-early-strength concrete is prepared from the following raw materials in parts by weight: 14 to 20 parts of sulphoaluminate cement, 13 to 28 parts of Portland cement, 10 to 20 parts of quartz sand, 3 to 8 parts of polyvinyl alcohol fiber, 1.5 to 3.2 parts of polycarboxylic acid type water reducing agent, 0.8 to 2 parts of lithium carbonate, 8 to 10 parts of magnesium sulfate material, 5 to 8 parts of modified polystyrene, 20 to 30 parts of water and 1 to 2 parts of foaming agent. The preparation method comprises the following steps: uniformly mixing and stirring the sulphoaluminate cement, the Portland cement, the quartz sand and the water of which the water temperature is controlled at 80-90 DEG C, adding the modified polystyrene and the foaming agent, stirring for 3-5 minutes, continuously adding the polyvinyl alcohol fiber, the polycarboxylate superplasticizer and the magnesium sulfate material, and uniformly stirring to obtain the product. The composition can be used for pavement maintenance and first-aid repair operation, and has the advantages of high early strength and stable performance development.
本申请涉及混凝土领域，具体公开了一种超早强混凝土及其制备方法。一种超早强混凝土及其制备方法包括如下重量份原料：硫铝酸盐水泥14‑20份、硅酸盐水泥13‑28份、石英砂10‑20份、聚乙烯醇纤维3‑8份、聚羧酸系减水剂1.5‑3.2份、碳酸锂0.8‑2份、硫酸镁材料8‑10份、改性聚苯乙烯5‑8份、水20‑30份、发泡剂1‑2份；其制备方法为取硫铝酸盐水泥、硅酸盐水泥、石英砂以及水温控制在80‑90℃的水混合搅拌均匀，加入改性聚苯乙烯与发泡剂搅拌3‑5min后，继续加入聚乙烯醇纤维、聚羧酸减水剂、硫酸镁材料搅拌均匀制得。本申请的组合物可用于路面维护、抢修作业，其具有早期强度高、性能发展稳定的优点。
Super early strength concrete and preparation method thereof
一种超早强混凝土及其制备方法
SHEN ANLE (Autor:in) / DING XINMEI (Autor:in) / DONG JIUYI (Autor:in)
19.07.2024
Patent
Elektronische Ressource
Chinesisch
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