Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Anti-crack concrete with low shrinkage rate and preparation method thereof
The invention relates to concrete, in particular to low-shrinkage anti-crack concrete and a preparation method thereof. The low-shrinkage anti-crack concrete comprises the following raw materials in parts by weight: 100-150 parts of water, 80-120 parts of cement, 50-90 parts of silica sand, 40-80 parts of fly ash, 50-80 parts of limestone, 20-40 parts of reinforced fibers and 5-8 parts of a water reducing agent. The reinforced fibers comprise modified basalt fibers; the preparation method of the modified basalt fiber comprises the following steps: 1) dipping basalt fiber in an acid solution, taking out the basalt fiber, washing the basalt fiber to be neutral, and drying the basalt fiber to obtain pretreated fiber; 2, a rare earth solution is taken, the pretreated fibers prepared in the step 1 are placed in the rare earth solution to be soaked for 2-3 h and then taken out to be dried, and the low-shrinkage-rate anti-cracking concrete is obtained.The low-shrinkage-rate anti-cracking concrete has the advantage that the anti-cracking performance of the low-shrinkage-rate anti-cracking concrete is improved.
本申请涉及混凝土的，特别涉及一种收缩率低的抗裂混凝土及其制备方法，包括如下重量份数的原料：水100‑150份，水泥80‑120份，硅砂50‑90份，粉煤灰40‑80份，石灰岩50‑80份，增强纤维20‑40份，减水剂5‑8份；所述增强纤维包括改性玄武岩纤维；所述改性玄武岩纤维的制备方法包括如下步骤：1）：将玄武岩纤维浸渍在酸液中，取出，洗涤至中性，干燥得到预处理纤维；2）：取稀土溶液，将步骤1）中制备的预处理纤维放置在稀土溶液中，浸泡2‑3h，取出干燥，即得。本申请具有提高收缩率低的抗裂混凝土的抗开裂性能的优点。
Anti-crack concrete with low shrinkage rate and preparation method thereof
The invention relates to concrete, in particular to low-shrinkage anti-crack concrete and a preparation method thereof. The low-shrinkage anti-crack concrete comprises the following raw materials in parts by weight: 100-150 parts of water, 80-120 parts of cement, 50-90 parts of silica sand, 40-80 parts of fly ash, 50-80 parts of limestone, 20-40 parts of reinforced fibers and 5-8 parts of a water reducing agent. The reinforced fibers comprise modified basalt fibers; the preparation method of the modified basalt fiber comprises the following steps: 1) dipping basalt fiber in an acid solution, taking out the basalt fiber, washing the basalt fiber to be neutral, and drying the basalt fiber to obtain pretreated fiber; 2, a rare earth solution is taken, the pretreated fibers prepared in the step 1 are placed in the rare earth solution to be soaked for 2-3 h and then taken out to be dried, and the low-shrinkage-rate anti-cracking concrete is obtained.The low-shrinkage-rate anti-cracking concrete has the advantage that the anti-cracking performance of the low-shrinkage-rate anti-cracking concrete is improved.
本申请涉及混凝土的，特别涉及一种收缩率低的抗裂混凝土及其制备方法，包括如下重量份数的原料：水100‑150份，水泥80‑120份，硅砂50‑90份，粉煤灰40‑80份，石灰岩50‑80份，增强纤维20‑40份，减水剂5‑8份；所述增强纤维包括改性玄武岩纤维；所述改性玄武岩纤维的制备方法包括如下步骤：1）：将玄武岩纤维浸渍在酸液中，取出，洗涤至中性，干燥得到预处理纤维；2）：取稀土溶液，将步骤1）中制备的预处理纤维放置在稀土溶液中，浸泡2‑3h，取出干燥，即得。本申请具有提高收缩率低的抗裂混凝土的抗开裂性能的优点。
Anti-crack concrete with low shrinkage rate and preparation method thereof
一种收缩率低的抗裂混凝土及其制备方法
XU ZHANDONG (Autor:in) / ZHAO ZONGGENG (Autor:in) / HAN CHAOFENG (Autor:in) / LI HUAFENG (Autor:in) / ZHU JIANGPING (Autor:in)
24.06.2022
Patent
Elektronische Ressource
Chinesisch
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