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A platform for research: civil engineering, architecture and urbanism
Improved microorganism synergistic concrete repairing material and preparation method thereof
The invention provides an improved microorganism synergistic concrete repairing material which is composed of two parts of concrete slurry, namely microorganism synergistic repairing high-viscosity concrete slurry and salt-resistant compact concrete slurry. The high-viscosity concrete slurry with the microbial synergistic repairing property is prepared from the following components in percentage by weight: 40 to 50 percent of modified magnesium phosphate cement, 1.5 to 2.5 percent of ternary copolymerized polyacrylamide, 20 to 30 percent of quartz sand with the fineness modulus of 2.5 to 2.7, 4 to 8 percent of superfine steel fiber with the cross sectional area of less than or equal to 0.01 mm < 2 >, 0.1 to 0.5 percent of spores of denitrifying bacteria, 0.01 to 0.2 percent of nutrient and the balance of water. The salt-tolerant compact concrete slurry is prepared from the following components in percentage by weight: 40 to 45 percent of modified magnesium phosphate cement, 0.3 to 0.7 percent of ternary copolymerized polyacrylamide, 15 to 20 percent of coarse aggregate, 10 to 15 percent of fine aggregate, 5 to 10 percent of ordinary steel fiber, 0.1 to 0.5 percent of water reducing agent and the balance of water. By matching the two concrete ingredients, the repair effect with stable and excellent performance can be obtained.
本申请提供了一种改进的微生物协同混凝土修补材料，由两部分混凝土浆料组成，分别是微生物协同修复性高粘结混凝土浆料和耐盐性致密混凝土浆料。微生物协同修复性高粘结混凝土浆料的组成为：40‑50wt.％的改性磷酸镁水泥、1.5‑2.5wt.％的三元共聚聚丙烯酰胺、20‑30wt.％的细度模数为2.5‑2.7的石英砂、4‑8wt.％的横截面积小于等于0.01mm2的超细钢纤维、0.1‑0.5wt.％的反硝化型菌的芽孢体、0.01‑0.2wt.％的营养物，余量为水。耐盐性致密混凝土浆料的组成为：40‑45wt.％的改性磷酸镁水泥、0.3‑0.7wt.％的三元共聚聚丙烯酰胺、15‑20wt.％的粗集料、10‑15wt.％的细集料、5‑10wt.％的普通钢纤维0.1‑0.5wt.％的减水剂，余量为水。通过将两者设定的混凝土配料配合使用，可以获得性能稳定优异的修补效果。
Improved microorganism synergistic concrete repairing material and preparation method thereof
The invention provides an improved microorganism synergistic concrete repairing material which is composed of two parts of concrete slurry, namely microorganism synergistic repairing high-viscosity concrete slurry and salt-resistant compact concrete slurry. The high-viscosity concrete slurry with the microbial synergistic repairing property is prepared from the following components in percentage by weight: 40 to 50 percent of modified magnesium phosphate cement, 1.5 to 2.5 percent of ternary copolymerized polyacrylamide, 20 to 30 percent of quartz sand with the fineness modulus of 2.5 to 2.7, 4 to 8 percent of superfine steel fiber with the cross sectional area of less than or equal to 0.01 mm < 2 >, 0.1 to 0.5 percent of spores of denitrifying bacteria, 0.01 to 0.2 percent of nutrient and the balance of water. The salt-tolerant compact concrete slurry is prepared from the following components in percentage by weight: 40 to 45 percent of modified magnesium phosphate cement, 0.3 to 0.7 percent of ternary copolymerized polyacrylamide, 15 to 20 percent of coarse aggregate, 10 to 15 percent of fine aggregate, 5 to 10 percent of ordinary steel fiber, 0.1 to 0.5 percent of water reducing agent and the balance of water. By matching the two concrete ingredients, the repair effect with stable and excellent performance can be obtained.
本申请提供了一种改进的微生物协同混凝土修补材料，由两部分混凝土浆料组成，分别是微生物协同修复性高粘结混凝土浆料和耐盐性致密混凝土浆料。微生物协同修复性高粘结混凝土浆料的组成为：40‑50wt.％的改性磷酸镁水泥、1.5‑2.5wt.％的三元共聚聚丙烯酰胺、20‑30wt.％的细度模数为2.5‑2.7的石英砂、4‑8wt.％的横截面积小于等于0.01mm2的超细钢纤维、0.1‑0.5wt.％的反硝化型菌的芽孢体、0.01‑0.2wt.％的营养物，余量为水。耐盐性致密混凝土浆料的组成为：40‑45wt.％的改性磷酸镁水泥、0.3‑0.7wt.％的三元共聚聚丙烯酰胺、15‑20wt.％的粗集料、10‑15wt.％的细集料、5‑10wt.％的普通钢纤维0.1‑0.5wt.％的减水剂，余量为水。通过将两者设定的混凝土配料配合使用，可以获得性能稳定优异的修补效果。
Improved microorganism synergistic concrete repairing material and preparation method thereof
一种改进的微生物协同混凝土修补材料及其制备方法
SUN GUOWEN (author) / LIU ZHIYONG (author) / XU WENXIANG (author) / WANG FENGJUAN (author) / ZHANG GUANGLEI (author) / WANG CAIHUI (author) / HAN YUFANG (author) / LIU LING (author) / ZHENG HAORUI (author) / DONG QI (author)
2022-11-22
Patent
Electronic Resource
Chinese
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