Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Cement-modified small-particle-size polymer emulsified asphalt ultra-thin wearing layer cold patch material and construction method thereof
The invention discloses a cement-modified small-particle-size polymer emulsified asphalt ultra-thin wearing layer cold patch material and a construction method thereof, the cement-modified small-particle-size polymer emulsified asphalt ultra-thin wearing layer cold patch material is composed of aggregate, cement and asphalt, the aggregate is small-particle-size basalt or diabase with the maximum nominal particle size of 8mm, and a skeleton embedded extrusion structure is formed by discontinuous grading; the cement is ordinary Portland cement and can react with carboxylic acid in the asphalt, increase the specific surface area and enhance the adhesive power, meanwhile, water in the emulsified asphalt is absorbed by utilizing relatively strong water absorption during mixing, the demulsification speed is increased, the content of evaporation residues is increased, and the cement and the absorbed water are subjected to hydration reaction, so that the forming strength and the water stability of the cold patch material are improved; the asphalt is quick-breaking cationic polymer modified emulsified asphalt with the evaporation residue content of 55% or above. The polymer emulsified asphalt cold patch material obtained by the invention has high skeleton strength, early strength and water stability, can be used for repairing thin-layer diseases such as ultrathin wearing layers, and simplifies the difficulty of road maintenance operation.
本发明公开了一种水泥改性的小粒径聚合物乳化沥青超薄磨耗层冷补料及其施工方法，由集料、水泥、沥青组成，集料为最大公称粒径8mm的小粒径玄武岩或辉绿岩，以间断级配形成骨架嵌挤结构；水泥为普通硅酸盐水泥，可与沥青中的羧酸发生反应，增大比表面积，增强粘附力，同时在拌合时利用较强的吸水性吸收乳化沥青中的水，加快破乳速度，提高蒸发残留物含量，并且与吸收的水发生水化反应，提高冷补料的成型强度和水稳性；所述沥青为蒸发残留物含量55％以上的快裂阳离子聚合物改性乳化沥青。本发明得到的聚合物乳化沥青冷补料具有较高的骨架强度、早期强度和水稳定性，可用于修补超薄磨耗层类薄层病害，简化道路维修养护作业难度。
Cement-modified small-particle-size polymer emulsified asphalt ultra-thin wearing layer cold patch material and construction method thereof
The invention discloses a cement-modified small-particle-size polymer emulsified asphalt ultra-thin wearing layer cold patch material and a construction method thereof, the cement-modified small-particle-size polymer emulsified asphalt ultra-thin wearing layer cold patch material is composed of aggregate, cement and asphalt, the aggregate is small-particle-size basalt or diabase with the maximum nominal particle size of 8mm, and a skeleton embedded extrusion structure is formed by discontinuous grading; the cement is ordinary Portland cement and can react with carboxylic acid in the asphalt, increase the specific surface area and enhance the adhesive power, meanwhile, water in the emulsified asphalt is absorbed by utilizing relatively strong water absorption during mixing, the demulsification speed is increased, the content of evaporation residues is increased, and the cement and the absorbed water are subjected to hydration reaction, so that the forming strength and the water stability of the cold patch material are improved; the asphalt is quick-breaking cationic polymer modified emulsified asphalt with the evaporation residue content of 55% or above. The polymer emulsified asphalt cold patch material obtained by the invention has high skeleton strength, early strength and water stability, can be used for repairing thin-layer diseases such as ultrathin wearing layers, and simplifies the difficulty of road maintenance operation.
本发明公开了一种水泥改性的小粒径聚合物乳化沥青超薄磨耗层冷补料及其施工方法，由集料、水泥、沥青组成，集料为最大公称粒径8mm的小粒径玄武岩或辉绿岩，以间断级配形成骨架嵌挤结构；水泥为普通硅酸盐水泥，可与沥青中的羧酸发生反应，增大比表面积，增强粘附力，同时在拌合时利用较强的吸水性吸收乳化沥青中的水，加快破乳速度，提高蒸发残留物含量，并且与吸收的水发生水化反应，提高冷补料的成型强度和水稳性；所述沥青为蒸发残留物含量55％以上的快裂阳离子聚合物改性乳化沥青。本发明得到的聚合物乳化沥青冷补料具有较高的骨架强度、早期强度和水稳定性，可用于修补超薄磨耗层类薄层病害，简化道路维修养护作业难度。
Cement-modified small-particle-size polymer emulsified asphalt ultra-thin wearing layer cold patch material and construction method thereof
一种水泥改性的小粒径聚合物乳化沥青超薄磨耗层冷补料及其施工方法
LIU XUAN (Autor:in) / ZHENG ZHONGHONG (Autor:in) / XUE CHAO (Autor:in) / SI LUTING (Autor:in) / SHEN CAIQIN (Autor:in) / WEI YONGWEI (Autor:in) / ZHANG GANG (Autor:in) / YUE XIN (Autor:in) / HUANG WEILIN (Autor:in) / YAO XIAOWU (Autor:in)
21.06.2024
Patent
Elektronische Ressource
Chinesisch
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