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A platform for research: civil engineering, architecture and urbanism
Shrinkage-compensating rapid repairing material for bridge expansion joints
The invention discloses a shrinkage-compensating rapid repairing material for bridge expansion joints. The shrinkage-compensating rapid repairing material is prepared from 25-40 parts of cement, 0-4 parts of gypsum powder, 2-4 parts of silica powder, 1-4 parts of an expanding agent, 25-33 parts of quartz sand and 32-40 parts of gravel, 0.05-0.1 part of a water reducing agent, 0.05-0.15 part of a retarder, 0.01-0.1 part of super absorbent resin, 0.005-0.01 part of a lithium salt and 0-0.01 part of a defoaming agent. The raw materials used in the invention are reasonably proportioned; early strength is high, the fastest 1h can reach 30MPa or above; the later strength is stably increased, the 28-day strength can reach 60 MPa or above, when the shrinkage-compensating rapid repairing material is used as a bridge expansion joint or concrete pavement repairing material, the self internal curing effect of the concrete can be enhanced, the volume shrinkage of the hardened concrete is reduced, the volume stability of the hardened concrete is enhanced, and the requirement for rapid traffic opening is met.
本发明公开了一种桥梁伸缩缝用补偿收缩快速修补材料，是由水泥25~40份，石膏粉0~4份，硅微粉2~4份，膨胀剂1~4份，石英砂25~33份，碎石32~40份；减水剂0.05~0.1份，缓凝剂0.05~0.15份，高吸水树脂0.01~0.1份，锂盐0.005~0.01份，消泡剂0~0.01份配制而成。本发明所用原料配比合理，早期强度高，最快1h能够达到30MPa以上，后期强度稳定增长，28天强度能够达到60MPa以上，作为桥梁伸缩缝或混凝土路面修补材料使用时，能增强混凝土的自身内养护作用，减少了硬化混凝土的体积收缩，增强了其体积稳定性，满足了快速开放交通的需求。
Shrinkage-compensating rapid repairing material for bridge expansion joints
The invention discloses a shrinkage-compensating rapid repairing material for bridge expansion joints. The shrinkage-compensating rapid repairing material is prepared from 25-40 parts of cement, 0-4 parts of gypsum powder, 2-4 parts of silica powder, 1-4 parts of an expanding agent, 25-33 parts of quartz sand and 32-40 parts of gravel, 0.05-0.1 part of a water reducing agent, 0.05-0.15 part of a retarder, 0.01-0.1 part of super absorbent resin, 0.005-0.01 part of a lithium salt and 0-0.01 part of a defoaming agent. The raw materials used in the invention are reasonably proportioned; early strength is high, the fastest 1h can reach 30MPa or above; the later strength is stably increased, the 28-day strength can reach 60 MPa or above, when the shrinkage-compensating rapid repairing material is used as a bridge expansion joint or concrete pavement repairing material, the self internal curing effect of the concrete can be enhanced, the volume shrinkage of the hardened concrete is reduced, the volume stability of the hardened concrete is enhanced, and the requirement for rapid traffic opening is met.
本发明公开了一种桥梁伸缩缝用补偿收缩快速修补材料，是由水泥25~40份，石膏粉0~4份，硅微粉2~4份，膨胀剂1~4份，石英砂25~33份，碎石32~40份；减水剂0.05~0.1份，缓凝剂0.05~0.15份，高吸水树脂0.01~0.1份，锂盐0.005~0.01份，消泡剂0~0.01份配制而成。本发明所用原料配比合理，早期强度高，最快1h能够达到30MPa以上，后期强度稳定增长，28天强度能够达到60MPa以上，作为桥梁伸缩缝或混凝土路面修补材料使用时，能增强混凝土的自身内养护作用，减少了硬化混凝土的体积收缩，增强了其体积稳定性，满足了快速开放交通的需求。
Shrinkage-compensating rapid repairing material for bridge expansion joints
桥梁伸缩缝用补偿收缩快速修补材料
WANG XIAOFENG (author) / YANG BO (author) / ZHANG XIAOGUO (author) / CHU FUKE (author) / ZHENG JIE (author) / WAN CHENGUANG (author) / CHEN MENGMENG (author)
2020-04-10
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
Rapid repairing material for bridge expansion joints and using method thereof
| European Patent Office | 2020
| European Patent Office | 2024