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A platform for research: civil engineering, architecture and urbanism
Cement concrete pavement patching material, preparation process and pavement patching method
The invention discloses a cement concrete pavement patching material, a preparation process and a pavement patching method, and belongs to the technical field of concrete repairing. The patching material is mainly prepared from the following raw materials in parts by weight: 48 to 52 parts of Portland cement, 7 to 10 parts of a cement additive, 17 to 19 parts of water, 0.7 to 0.9 part of resin rubber powder, 280 to 320 parts of coarse aggregate, 120 to 160 parts of tailing powder, 0.12 to 0.36 part of fiber and 2 to 5 parts of early strength agent. By adding the resin rubber powder, on one hand, the bonding capacity of the patching material at the interface of new and old concrete is enhanced, the bonding strength is improved, and on the other hand, the patching material has good freeze-thaw damage resistance; the composite fiber formed by compounding the polymer fiber and the steel fiber is selected, so that the breaking strength, the crack resistance and the impact resistance of the material are improved; calcium gluconate and calcium formate are selected as early strength agents, the patching material is endowed with the characteristics of rapid hardening and early strength, traffic can be opened after construction is performed for 12-24 h, long-time maintenance is not needed, and the working efficiency is high.
本发明公开了水泥混凝土路面修补材料、制备工艺及修补路面方法，属混凝土修复技术领域。所述修补材料主要由以下重量份的原料制成：硅酸盐水泥48～52份，水泥外加剂7～10份，水：17～19份，树脂胶粉0.7～0.9份，粗骨料280～320份，尾矿粉：120～160份；纤维0.12～0.36份，早强剂：2～5份。添加树脂胶粉，一方面增强修补材料在新旧混凝土界面处的粘接能力，提高粘接强度，另一方面使其具有良好的抗冻融破坏的能力；选用聚合物纤维与钢纤维复配而成的复合纤维，提高了材料的抗折强度、抗裂和抗冲击性能；选用葡萄糖酸钙和甲酸钙作为早强剂，赋予修补材料快硬早强的特点，施工12～24h后便可开放交通，无需长时间养护，工作效率高。
Cement concrete pavement patching material, preparation process and pavement patching method
The invention discloses a cement concrete pavement patching material, a preparation process and a pavement patching method, and belongs to the technical field of concrete repairing. The patching material is mainly prepared from the following raw materials in parts by weight: 48 to 52 parts of Portland cement, 7 to 10 parts of a cement additive, 17 to 19 parts of water, 0.7 to 0.9 part of resin rubber powder, 280 to 320 parts of coarse aggregate, 120 to 160 parts of tailing powder, 0.12 to 0.36 part of fiber and 2 to 5 parts of early strength agent. By adding the resin rubber powder, on one hand, the bonding capacity of the patching material at the interface of new and old concrete is enhanced, the bonding strength is improved, and on the other hand, the patching material has good freeze-thaw damage resistance; the composite fiber formed by compounding the polymer fiber and the steel fiber is selected, so that the breaking strength, the crack resistance and the impact resistance of the material are improved; calcium gluconate and calcium formate are selected as early strength agents, the patching material is endowed with the characteristics of rapid hardening and early strength, traffic can be opened after construction is performed for 12-24 h, long-time maintenance is not needed, and the working efficiency is high.
本发明公开了水泥混凝土路面修补材料、制备工艺及修补路面方法，属混凝土修复技术领域。所述修补材料主要由以下重量份的原料制成：硅酸盐水泥48～52份，水泥外加剂7～10份，水：17～19份，树脂胶粉0.7～0.9份，粗骨料280～320份，尾矿粉：120～160份；纤维0.12～0.36份，早强剂：2～5份。添加树脂胶粉，一方面增强修补材料在新旧混凝土界面处的粘接能力，提高粘接强度，另一方面使其具有良好的抗冻融破坏的能力；选用聚合物纤维与钢纤维复配而成的复合纤维，提高了材料的抗折强度、抗裂和抗冲击性能；选用葡萄糖酸钙和甲酸钙作为早强剂，赋予修补材料快硬早强的特点，施工12～24h后便可开放交通，无需长时间养护，工作效率高。
Cement concrete pavement patching material, preparation process and pavement patching method
水泥混凝土路面修补材料、制备工艺及修补路面方法
TIAN MIN (author) / WANG XIAOPING (author) / QIAN YUANDI (author) / LEI TUANJIE (author) / XIAO DUNWU (author)
2021-09-17
Patent
Electronic Resource
Chinese
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