A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
The invention discloses a super-early-strength, low-shrinkage and high-ductility concrete rapid repair material. The repair material comprises the following components in parts by weight: 100 parts of a cementing material; 12.3 to 24.6 parts of a functional additive; 20 to 30 parts of quartz powder; 20 to 30 parts of water ; 0.5 to 1.5 parts of a water reducing agent, and PVA fibers accounting for 1-2.5% of the total volume of the repairing material. The super-early-strength, low-shrinkage and high-ductility concrete rapid repair material has the characteristic of super early strength, the strength can reach 50 MPa within 3h, it is guaranteed that a repaired component can be rapidly and normally used, the later strength is continuously increased, and the phenomenon of shrinkage does not exist; and the rapid repair material disclosed by the invention has relatively low shrinkage rate and excellent durability, and can keep high deformation coordination capability with a repaired engineering structure, so that the normal service life of the structure is remarkably prolonged.
本发明公开了一种超早强、低收缩和高延性的混凝土快速修复材料；该修复材料包括以下重量份的组分：胶凝材料100份；功能型添加剂12.3‑24.6份；石英粉20‑30份；水；20‑30份；减水剂0.5‑1.5份以及占修复材料总体积1‑2.5％的PVA纤维；本发明的超早强、低收缩和高延性的混凝土快速修复材料具有超早强的特点，在3h强度即可达到50MPa,有利于保证被修复构件快速正常使用，且后期强度持续增长，无倒缩现象；本发明的快速修复材料具有较低的收缩率以及优异的耐久性能，可与被修复的工程结构保持良好的协调形变能力，显著延长结构正常使用寿命。
The invention discloses a super-early-strength, low-shrinkage and high-ductility concrete rapid repair material. The repair material comprises the following components in parts by weight: 100 parts of a cementing material; 12.3 to 24.6 parts of a functional additive; 20 to 30 parts of quartz powder; 20 to 30 parts of water ; 0.5 to 1.5 parts of a water reducing agent, and PVA fibers accounting for 1-2.5% of the total volume of the repairing material. The super-early-strength, low-shrinkage and high-ductility concrete rapid repair material has the characteristic of super early strength, the strength can reach 50 MPa within 3h, it is guaranteed that a repaired component can be rapidly and normally used, the later strength is continuously increased, and the phenomenon of shrinkage does not exist; and the rapid repair material disclosed by the invention has relatively low shrinkage rate and excellent durability, and can keep high deformation coordination capability with a repaired engineering structure, so that the normal service life of the structure is remarkably prolonged.
本发明公开了一种超早强、低收缩和高延性的混凝土快速修复材料；该修复材料包括以下重量份的组分：胶凝材料100份；功能型添加剂12.3‑24.6份；石英粉20‑30份；水；20‑30份；减水剂0.5‑1.5份以及占修复材料总体积1‑2.5％的PVA纤维；本发明的超早强、低收缩和高延性的混凝土快速修复材料具有超早强的特点，在3h强度即可达到50MPa,有利于保证被修复构件快速正常使用，且后期强度持续增长，无倒缩现象；本发明的快速修复材料具有较低的收缩率以及优异的耐久性能，可与被修复的工程结构保持良好的协调形变能力，显著延长结构正常使用寿命。
Super-early-strength, low-shrinkage and high-ductility concrete rapid repair material and preparation method thereof
一种超早强、低收缩和高延性的混凝土快速修复材料及其制备方法
XU WENLEI (author)
2022-02-08
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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