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Polyurethane nano-alumina composite repair material and preparation method thereof
The invention discloses a polyurethane nanometer aluminum oxide composite repairing material and a preparation method thereof, and belongs to the technical field of tunnel engineering materials. The concrete comprises the following components in parts by mass: 350-400 parts of cement, 60-80 parts of fly ash, 40-60 parts of silica fume, 15-20 parts of polyurethane, 20-25 parts of nano aluminum oxide, 600-700 parts of sand, 4-6 parts of a water reducing agent and 170-190 parts of water. The cement-based composite repair material provided by the invention can simultaneously meet the requirements of setting time, permeability and coagulability. Due to the introduction of nano aluminum oxide, the compactness and the wear resistance of the material can be improved, and the permeability can be promoted, so that the material can permeate into a part with the smallest crack. The elastic characteristic of polyurethane is beneficial to keeping the repairing effect when the material deals with micro-deformation of the structure, and the bonding strength between a repairing area and an original structure is improved, so that the long-term stable repairing effect is achieved.
本发明公开了一种聚氨酯纳米氧化铝复合修复材料及其制备方法，属于隧道工程材料技术领域。其包括以下质量份数的组分：水泥350～400份、粉煤灰60～80份、硅灰40～60份、聚氨酯15～20份、纳米氧化铝20～25份、砂600～700份、减水剂4～6份、水170～190份。本发明提供的水泥基复合修复材料能够同时满足凝结时间、渗透性和凝结性的需要。纳米氧化铝的引入，可提高材料的密实度和耐磨性，还能促进渗透性能，使材料能够渗透到裂缝最微小的部位。聚氨酯的弹性特性有助于材料在应对结构微变形时保持修复效果，增加修复区域与原结构之间的粘接强度，从而达到长期稳定的修复效果。
Polyurethane nano-alumina composite repair material and preparation method thereof
The invention discloses a polyurethane nanometer aluminum oxide composite repairing material and a preparation method thereof, and belongs to the technical field of tunnel engineering materials. The concrete comprises the following components in parts by mass: 350-400 parts of cement, 60-80 parts of fly ash, 40-60 parts of silica fume, 15-20 parts of polyurethane, 20-25 parts of nano aluminum oxide, 600-700 parts of sand, 4-6 parts of a water reducing agent and 170-190 parts of water. The cement-based composite repair material provided by the invention can simultaneously meet the requirements of setting time, permeability and coagulability. Due to the introduction of nano aluminum oxide, the compactness and the wear resistance of the material can be improved, and the permeability can be promoted, so that the material can permeate into a part with the smallest crack. The elastic characteristic of polyurethane is beneficial to keeping the repairing effect when the material deals with micro-deformation of the structure, and the bonding strength between a repairing area and an original structure is improved, so that the long-term stable repairing effect is achieved.
本发明公开了一种聚氨酯纳米氧化铝复合修复材料及其制备方法，属于隧道工程材料技术领域。其包括以下质量份数的组分：水泥350～400份、粉煤灰60～80份、硅灰40～60份、聚氨酯15～20份、纳米氧化铝20～25份、砂600～700份、减水剂4～6份、水170～190份。本发明提供的水泥基复合修复材料能够同时满足凝结时间、渗透性和凝结性的需要。纳米氧化铝的引入，可提高材料的密实度和耐磨性，还能促进渗透性能，使材料能够渗透到裂缝最微小的部位。聚氨酯的弹性特性有助于材料在应对结构微变形时保持修复效果，增加修复区域与原结构之间的粘接强度，从而达到长期稳定的修复效果。
Polyurethane nano-alumina composite repair material and preparation method thereof
一种聚氨酯纳米氧化铝复合修复材料及其制备方法
LI JINGLONG (author) / ZHANG SHUANG (author) / WANG JING (author) / WANG HUIXIN (author) / MENG XIANGYU (author) / ZHANG YIJIE (author) / ZHANG FENGLING (author) / SONG ZENGLIANG (author) / TANG MIN (author)
2024-12-10
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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