A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
High-mixing-amount SBS modified emulsified asphalt for plant-mixed cold recycling and preparation method thereof
The invention relates to the technical field of road building materials, and particularly discloses a high-mixing-amount SBS emulsified asphalt for plant-mixed cold recycling and a preparation method thereof, the high-mixing-amount SBS emulsified asphalt for plant-mixed cold recycling comprises the following raw materials by weight: 60-67 parts of matrix asphalt, 33-40 parts of water, 2-5 parts of an emulsifier, 6-8 parts of an SBS emulsion, 2-4 parts of a water-based polyacrylate emulsion, and 2-4 parts of a water-based polyurethane emulsion. The preparation method comprises the following steps: adding the emulsifier into water to adjust the pH value so as to prepare liquid soap, heating to 60-70 DEG C while stirring, adding the heated liquid soap and the matrix asphalt which is preheated to 130-140 DEG C into a colloid mill at one time, adding the SBS emulsion, the water-based polyacrylate emulsion and the water-based polyurethane emulsion, shearing and cooling to room temperature, thereby obtaining the product. When the prepared high-mixing-amount SBS emulsified asphalt is used for plant-mixing cold recycling, a mixture shows good high and low temperature performance, meanwhile, the water damage resistance and the fatigue resistance are remarkably improved, and the high-dosage SBS emulsified asphalt is suitable for application and popularization.
本发明涉及道路建筑材料技术领域，具体公开了一种厂拌冷再生用高掺量SBS乳化沥青及其制备方法，各原料及其重量份为：基质沥青60~67份、水33~40份，乳化剂2~5份、SBS乳液6~8份、水性聚丙烯酸酯乳液2~4份、水性聚氨酯乳液2~4份；制备时，将乳化剂加入水中调节pH配置成皂液，边搅拌边加热至60‑70℃后与预先加热至130‑140℃的基质沥青一次性加入胶体磨中，再加入SBS乳液、水性聚丙烯酸酯乳液及水性聚氨酯乳液，剪切冷却至室温即得；本发明制备的高掺量SBS乳化沥青用于厂拌冷再生时，混合料表现出良好的高低温性能，同时抗水损害能力和抗疲劳性能显著提升，适合推广应用。
High-mixing-amount SBS modified emulsified asphalt for plant-mixed cold recycling and preparation method thereof
The invention relates to the technical field of road building materials, and particularly discloses a high-mixing-amount SBS emulsified asphalt for plant-mixed cold recycling and a preparation method thereof, the high-mixing-amount SBS emulsified asphalt for plant-mixed cold recycling comprises the following raw materials by weight: 60-67 parts of matrix asphalt, 33-40 parts of water, 2-5 parts of an emulsifier, 6-8 parts of an SBS emulsion, 2-4 parts of a water-based polyacrylate emulsion, and 2-4 parts of a water-based polyurethane emulsion. The preparation method comprises the following steps: adding the emulsifier into water to adjust the pH value so as to prepare liquid soap, heating to 60-70 DEG C while stirring, adding the heated liquid soap and the matrix asphalt which is preheated to 130-140 DEG C into a colloid mill at one time, adding the SBS emulsion, the water-based polyacrylate emulsion and the water-based polyurethane emulsion, shearing and cooling to room temperature, thereby obtaining the product. When the prepared high-mixing-amount SBS emulsified asphalt is used for plant-mixing cold recycling, a mixture shows good high and low temperature performance, meanwhile, the water damage resistance and the fatigue resistance are remarkably improved, and the high-dosage SBS emulsified asphalt is suitable for application and popularization.
本发明涉及道路建筑材料技术领域，具体公开了一种厂拌冷再生用高掺量SBS乳化沥青及其制备方法，各原料及其重量份为：基质沥青60~67份、水33~40份，乳化剂2~5份、SBS乳液6~8份、水性聚丙烯酸酯乳液2~4份、水性聚氨酯乳液2~4份；制备时，将乳化剂加入水中调节pH配置成皂液，边搅拌边加热至60‑70℃后与预先加热至130‑140℃的基质沥青一次性加入胶体磨中，再加入SBS乳液、水性聚丙烯酸酯乳液及水性聚氨酯乳液，剪切冷却至室温即得；本发明制备的高掺量SBS乳化沥青用于厂拌冷再生时，混合料表现出良好的高低温性能，同时抗水损害能力和抗疲劳性能显著提升，适合推广应用。
High-mixing-amount SBS modified emulsified asphalt for plant-mixed cold recycling and preparation method thereof
一种厂拌冷再生用高掺量SBS改性乳化沥青及其制备方法
LIU LIYUAN (author) / WANG GUOYONG (author) / XU LIFEI (author) / LYU QUAN (author) / ZHANG HENGJI (author)
2021-06-25
Patent
Electronic Resource
Chinese
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