A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Rapid repairing material for concrete cracks as well as preparation method and application of rapid repairing material
The invention belongs to the technical field of concrete crack filling materials, and particularly relates to a rapid repairing material for concrete cracks, which comprises a component A and a component B, the component A comprises liquid bisphenol A epoxy resin, a filler, a flexibilizer and an anti-settling agent; the component B comprises a curing agent and a diluent; wherein the curing agent is prepared by the following steps: reacting polyamine, an epoxy compound and benzyl alcohol in advance, and then mixing with isocyanate. Research finds that based on the cooperation of the component A and the component B, the performance of the rapid repairing material for the concrete cracks can be remarkably improved. Researches find that the rapid repairing material has the characteristics that the strength is rapidly increased at low temperature, the gelation time is short, the compressive strength within 2 hours is greater than 50 MPa, the breaking strength within 24 hours is greater than 12 MPa, the bonding strength is greater than 3.0 MPa, traffic can be opened within 2 hours, and the later strength can also be slowly increased.
本发明属于混凝土裂缝填充材料技术领域，具体涉及一种混凝土裂缝用快速修补材料，其包括甲组分和乙组分；甲组分包含液体双酚A型环氧树脂、填料、增韧剂和防沉降剂；所述乙组分包括固化剂和稀释剂；其中，所述的固化剂的制备过程为：将多元胺、环氧化合物、苯甲醇预先进行反应，随后再和异氰酸酯混合得到。本发明研究发现，基于所述的甲组分和乙组分协同，可以显著改善混凝土裂缝用快速修补材料的性能。研究发现，该快速修补材料具有低温时强度增长迅速，凝胶时间快、2h抗压强度大于50MPa、24h抗折强度大于12Mpa、粘接强度大于3.0Mpa、2h即可开放交通，后期强度还会缓慢增长等特点。
Rapid repairing material for concrete cracks as well as preparation method and application of rapid repairing material
The invention belongs to the technical field of concrete crack filling materials, and particularly relates to a rapid repairing material for concrete cracks, which comprises a component A and a component B, the component A comprises liquid bisphenol A epoxy resin, a filler, a flexibilizer and an anti-settling agent; the component B comprises a curing agent and a diluent; wherein the curing agent is prepared by the following steps: reacting polyamine, an epoxy compound and benzyl alcohol in advance, and then mixing with isocyanate. Research finds that based on the cooperation of the component A and the component B, the performance of the rapid repairing material for the concrete cracks can be remarkably improved. Researches find that the rapid repairing material has the characteristics that the strength is rapidly increased at low temperature, the gelation time is short, the compressive strength within 2 hours is greater than 50 MPa, the breaking strength within 24 hours is greater than 12 MPa, the bonding strength is greater than 3.0 MPa, traffic can be opened within 2 hours, and the later strength can also be slowly increased.
本发明属于混凝土裂缝填充材料技术领域，具体涉及一种混凝土裂缝用快速修补材料，其包括甲组分和乙组分；甲组分包含液体双酚A型环氧树脂、填料、增韧剂和防沉降剂；所述乙组分包括固化剂和稀释剂；其中，所述的固化剂的制备过程为：将多元胺、环氧化合物、苯甲醇预先进行反应，随后再和异氰酸酯混合得到。本发明研究发现，基于所述的甲组分和乙组分协同，可以显著改善混凝土裂缝用快速修补材料的性能。研究发现，该快速修补材料具有低温时强度增长迅速，凝胶时间快、2h抗压强度大于50MPa、24h抗折强度大于12Mpa、粘接强度大于3.0Mpa、2h即可开放交通，后期强度还会缓慢增长等特点。
Rapid repairing material for concrete cracks as well as preparation method and application of rapid repairing material
一种混凝土裂缝用快速修补材料及其制备方法和应用
YULIN (author) / ZHOU JIANGMING (author) / HE TAO (author) / HUANG WEILING (author)
2022-06-07
Patent
Electronic Resource
Chinese
| European Patent Office | 2023
| European Patent Office | 2023
Rapid concrete repairing material and preparation method thereof
| European Patent Office | 2021
| European Patent Office | 2023