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A platform for research: civil engineering, architecture and urbanism
High-strength heat-resistant self-repairing concrete and preparation method thereof
The invention discloses high-strength heat-resistant self-repairing concrete and a preparation method thereof. The concrete comprises the following components in parts by weight: 340-360 parts of cement, 140-160 parts of fly ash, 750-800 parts of gravels, 730-750 parts of medium sand, 110-120 parts of coarse aggregate, 1-5 parts of a water reducing agent, 170-180 parts of water, 1-5 parts of polypropylene fibers, 50-80 parts of mineral powder, 1-5 parts of an early strength agent, 20-30 parts of composite fibers and 5-10 parts of a self-repairing material, wherein the coarse aggregate is formed by mixing hollow glass beads and ceramsite in a mass ratio of 1: (1.2-1.5); the composite fibers are composed of 5 to 10 parts of aramid fibers, 3 to 6 parts of glass fibers, 5 to 10 parts of resorcinol-formaldehyde resin and 0.3 to 1.4 parts of copolyoxymethylene; and the self-repairing material comprises 6 to 8 parts of cement and 2 to 4 parts of diluted epoxy resin, and further comprises 0.5to 1 part of calcined tuff and 0.5 to 1 part of carbon nanotubes. The high-strength heat-resistant concrete has the advantages of high strength and favorable heat resistance, and can realize self-repairing when a wall has broken cracks.
本发明公开了一种高强耐热自修复混凝土及其制备方法，混凝土组分按重量份数包括：340‑360份水泥、140‑160份粉煤灰、750‑800份碎石、730‑750份中砂、110‑120份粗骨料、1‑5份减水剂、170‑180份水、1‑5份聚丙烯纤维、50‑80份矿粉、1‑5份早强剂、20‑30份复合纤维、5‑10份自修复材料；所述粗骨料由质量比为1:1.2‑1.5的空心玻璃微珠和陶粒混合而成；所述复合纤维包括5‑10份芳纶纤维、3‑6份玻璃纤维、5‑10份间苯二酚‑甲醛树脂和0.3‑1.4份共聚甲醛；所述自修复材料包括6‑8份水泥、2‑4份稀释的环氧树脂；所述的自修复材料进一步地包括0.5‑1份煅烧凝灰岩、0.5‑1份碳纳米管；本发明的高强耐热混凝土不仅强度高、耐热性好，还能够在墙体出现破损裂缝时实现自我修复。
High-strength heat-resistant self-repairing concrete and preparation method thereof
The invention discloses high-strength heat-resistant self-repairing concrete and a preparation method thereof. The concrete comprises the following components in parts by weight: 340-360 parts of cement, 140-160 parts of fly ash, 750-800 parts of gravels, 730-750 parts of medium sand, 110-120 parts of coarse aggregate, 1-5 parts of a water reducing agent, 170-180 parts of water, 1-5 parts of polypropylene fibers, 50-80 parts of mineral powder, 1-5 parts of an early strength agent, 20-30 parts of composite fibers and 5-10 parts of a self-repairing material, wherein the coarse aggregate is formed by mixing hollow glass beads and ceramsite in a mass ratio of 1: (1.2-1.5); the composite fibers are composed of 5 to 10 parts of aramid fibers, 3 to 6 parts of glass fibers, 5 to 10 parts of resorcinol-formaldehyde resin and 0.3 to 1.4 parts of copolyoxymethylene; and the self-repairing material comprises 6 to 8 parts of cement and 2 to 4 parts of diluted epoxy resin, and further comprises 0.5to 1 part of calcined tuff and 0.5 to 1 part of carbon nanotubes. The high-strength heat-resistant concrete has the advantages of high strength and favorable heat resistance, and can realize self-repairing when a wall has broken cracks.
本发明公开了一种高强耐热自修复混凝土及其制备方法，混凝土组分按重量份数包括：340‑360份水泥、140‑160份粉煤灰、750‑800份碎石、730‑750份中砂、110‑120份粗骨料、1‑5份减水剂、170‑180份水、1‑5份聚丙烯纤维、50‑80份矿粉、1‑5份早强剂、20‑30份复合纤维、5‑10份自修复材料；所述粗骨料由质量比为1:1.2‑1.5的空心玻璃微珠和陶粒混合而成；所述复合纤维包括5‑10份芳纶纤维、3‑6份玻璃纤维、5‑10份间苯二酚‑甲醛树脂和0.3‑1.4份共聚甲醛；所述自修复材料包括6‑8份水泥、2‑4份稀释的环氧树脂；所述的自修复材料进一步地包括0.5‑1份煅烧凝灰岩、0.5‑1份碳纳米管；本发明的高强耐热混凝土不仅强度高、耐热性好，还能够在墙体出现破损裂缝时实现自我修复。
High-strength heat-resistant self-repairing concrete and preparation method thereof
一种高强耐热自修复混凝土及其制备方法
YANG JINHUI (author) / YANG XIAOBIN (author) / DONG WEIDONG (author) / ZHOU YANWEN (author) / FENG SANGOU (author) / LIN LIHUA (author) / LIN CHENG (author)
2020-06-09
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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