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A platform for research: civil engineering, architecture and urbanism
Microbial agent separation double-system self-repairing concrete and preparation method thereof
The invention relates to the technical field of microbial concrete materials, in particular to microbial agent separation double-system self-repairing concrete and a preparation method. The self-repairing concrete is prepared from the following raw materials in parts by weight: 1100 to 1300 parts of coarse aggregate, 500 to 560 parts of river sand, 30 to 40 parts of silica fume, 300 to 425 parts of ordinary Portland cement (P.O 42.5), 5 to 6 parts of a water reducing agent, 90 to 120 parts of a carrier loaded with microorganisms and 240 to 260 parts of large-particle-size porous particles loaded with nutrient substances, wherein the microorganisms adopt bacillus coriolis and denitrifying bacteria; the preparation method is used for preparing the self-repairing concrete, the problem that reliable repairing cannot be achieved due to one-time consumption of the fungicide in the concrete self-repairing process is solved, the durability of the concrete structure under the freezing and thawing cycle effect is improved, and the service life of the concrete in the extreme environment is greatly prolonged.
本发明涉及微生物混凝土材料技术领域，尤其涉及一种菌剂分离双体系自修复混凝土及制备方法，自修复混凝土包括如下重量分数的原料：粗骨料1100‑1300份、河砂500‑560份、硅灰30‑40份、普通硅酸盐水泥(P.O 42.5)300‑425份、减水剂5‑6份和载有微生物的载体90‑120份以及载有营养物质的大粒径多孔颗粒240‑260份，所述微生物采用科氏芽孢杆菌和反硝化菌；制备方法用于制备上述自修复混凝土，解决混凝土自修复过程中的菌剂一次性消耗无法实现可靠修复的难题，提高混凝土结构在冻融循环作用下的耐久性能，大大延长极端环境下混凝土的使用寿命。
Microbial agent separation double-system self-repairing concrete and preparation method thereof
The invention relates to the technical field of microbial concrete materials, in particular to microbial agent separation double-system self-repairing concrete and a preparation method. The self-repairing concrete is prepared from the following raw materials in parts by weight: 1100 to 1300 parts of coarse aggregate, 500 to 560 parts of river sand, 30 to 40 parts of silica fume, 300 to 425 parts of ordinary Portland cement (P.O 42.5), 5 to 6 parts of a water reducing agent, 90 to 120 parts of a carrier loaded with microorganisms and 240 to 260 parts of large-particle-size porous particles loaded with nutrient substances, wherein the microorganisms adopt bacillus coriolis and denitrifying bacteria; the preparation method is used for preparing the self-repairing concrete, the problem that reliable repairing cannot be achieved due to one-time consumption of the fungicide in the concrete self-repairing process is solved, the durability of the concrete structure under the freezing and thawing cycle effect is improved, and the service life of the concrete in the extreme environment is greatly prolonged.
本发明涉及微生物混凝土材料技术领域，尤其涉及一种菌剂分离双体系自修复混凝土及制备方法，自修复混凝土包括如下重量分数的原料：粗骨料1100‑1300份、河砂500‑560份、硅灰30‑40份、普通硅酸盐水泥(P.O 42.5)300‑425份、减水剂5‑6份和载有微生物的载体90‑120份以及载有营养物质的大粒径多孔颗粒240‑260份，所述微生物采用科氏芽孢杆菌和反硝化菌；制备方法用于制备上述自修复混凝土，解决混凝土自修复过程中的菌剂一次性消耗无法实现可靠修复的难题，提高混凝土结构在冻融循环作用下的耐久性能，大大延长极端环境下混凝土的使用寿命。
Microbial agent separation double-system self-repairing concrete and preparation method thereof
一种菌剂分离双体系自修复混凝土及制备方法
ZHANG YU (author) / ZHANG XIANG (author) / GUO XUN (author) / ZHANG ZHUO (author) / WANG CHENXIN (author) / JIN ZHUOYANG (author)
2024-12-20
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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