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A platform for research: civil engineering, architecture and urbanism
Concrete micro-crack grouting repair material based on superfine fly ash microbeads
The invention relates to the technical field of cement crack pouring slurry, and discloses a concrete micro-crack grouting repair material based on superfine fly ash microbeads, which comprises the following components in parts by weight: 80-100 parts of superfine cement, 12-15 parts of superfine fly ash microbeads, 8-10 parts of silica fume, 10-12 parts of finely ground fly ash slag, 5-8 parts of an expanding agent, 0.8-1.2 parts of a polycarboxylate superplasticizer, 1.5-2 parts of an inorganic coagulant and 55-65 parts of water. Wherein the expanding agent comprises bentonite, expanded perlite, calcium sulphoaluminate and gypsum; the inorganic coagulant comprises aluminum potassium sulfate, sodium nitrate and sodium metaaluminate. The prepared concrete crack repairing grouting material is high in strength and can effectively resist impact of loads; the fluidity is good, and micro-cracks are convenient to fill; the shrinkage rate is small, and after the micro-cracks are filled, it can be guaranteed that the micro-cracks are full; and the bonding strength with a to-be-repaired concrete structure is high, and the two are not easy to separate.
本发明涉及水泥灌缝浆料技术领域，公开了一种基于超细粉煤灰微珠的混凝土微裂缝灌浆修补材料，按重量份组成包括：80～100份超细水泥、12～15份超细粉煤灰微珠、8～10份硅灰、10～12份细磨粉煤灰渣、5～8份膨胀剂、0.8～1.2份聚羧酸减水剂、1.5～2份无机促凝剂和55～65份水；其中，膨胀剂包括膨润土、膨胀珍珠岩、硫铝酸钙和石膏；无机促凝剂包括硫酸铝钾、硝酸钠和偏铝酸钠。本发明制备的混凝土裂缝修补灌浆料自身强度高，可以有效地抵御载荷的冲击；流动性好，便于填充微裂缝；收缩率小，填充微裂缝后，可以保证微裂缝饱满充实；且与待修补的混凝土结构之间的粘结强度高，二者不易发生脱离。
Concrete micro-crack grouting repair material based on superfine fly ash microbeads
The invention relates to the technical field of cement crack pouring slurry, and discloses a concrete micro-crack grouting repair material based on superfine fly ash microbeads, which comprises the following components in parts by weight: 80-100 parts of superfine cement, 12-15 parts of superfine fly ash microbeads, 8-10 parts of silica fume, 10-12 parts of finely ground fly ash slag, 5-8 parts of an expanding agent, 0.8-1.2 parts of a polycarboxylate superplasticizer, 1.5-2 parts of an inorganic coagulant and 55-65 parts of water. Wherein the expanding agent comprises bentonite, expanded perlite, calcium sulphoaluminate and gypsum; the inorganic coagulant comprises aluminum potassium sulfate, sodium nitrate and sodium metaaluminate. The prepared concrete crack repairing grouting material is high in strength and can effectively resist impact of loads; the fluidity is good, and micro-cracks are convenient to fill; the shrinkage rate is small, and after the micro-cracks are filled, it can be guaranteed that the micro-cracks are full; and the bonding strength with a to-be-repaired concrete structure is high, and the two are not easy to separate.
本发明涉及水泥灌缝浆料技术领域，公开了一种基于超细粉煤灰微珠的混凝土微裂缝灌浆修补材料，按重量份组成包括：80～100份超细水泥、12～15份超细粉煤灰微珠、8～10份硅灰、10～12份细磨粉煤灰渣、5～8份膨胀剂、0.8～1.2份聚羧酸减水剂、1.5～2份无机促凝剂和55～65份水；其中，膨胀剂包括膨润土、膨胀珍珠岩、硫铝酸钙和石膏；无机促凝剂包括硫酸铝钾、硝酸钠和偏铝酸钠。本发明制备的混凝土裂缝修补灌浆料自身强度高，可以有效地抵御载荷的冲击；流动性好，便于填充微裂缝；收缩率小，填充微裂缝后，可以保证微裂缝饱满充实；且与待修补的混凝土结构之间的粘结强度高，二者不易发生脱离。
Concrete micro-crack grouting repair material based on superfine fly ash microbeads
一种基于超细粉煤灰微珠的混凝土微裂缝灌浆修补材料
CHEN BINGSHAN (author) / ZHANG HAIPENG (author) / ZHANG QINGWEI (author)
2023-10-03
Patent
Electronic Resource
Chinese
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