Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
RAP fine aggregate high-modulus recycled asphalt mixture as well as preparation method and application thereof
The invention relates to an RAP fine aggregate high-modulus recycled asphalt mixture as well as a preparation method and application thereof. The high-modulus recycled asphalt mixture comprises the following components in percentage by mass: 20%-35% of RAP fine aggregate, 1.5%-3.8% of composite modified asphalt, 0.3%-1% of an interface reinforcing agent, 60%-80% of mineral aggregate and 0%-2% of mineral powder. Aiming at the problems that in the prior art, the utilization rate of aged asphalt in RAP fine aggregate is not high, and a recycled asphalt mixture matched with a structural layer cannot be provided, the aged asphalt in the RAP fine aggregate is fully utilized, and the high-modulus recycled asphalt mixture has the characteristics of high dynamic modulus, strong adhesion performance, fatigue resistance and the like; the high-value utilization of the RAP fine aggregate is realized, and the durability of the high-modulus recycled asphalt mixture is improved.
一种RAP细集料高模量再生沥青混合料及其制备方法和应用。所述高模量再生沥青混合料按质量百分比计包括以下组分：RAP细集料20%~35%，复合改性沥青1.5%~3.8%，界面增强剂0.3%~1%，矿料60%~80%，矿粉0%~2%。针对现有技术中存在RAP细集料中的老化沥青利用率不高、现有技术中无法提供与结构层位相匹配的再生沥青混合料，本发明充分利用RAP细集料中老化沥青，发明的高模量再生沥青混合料具有动态模量高、黏附性能强、耐疲劳等特点，实现了RAP细集料的高值化利用，提高了高模量再生沥青混合料的耐久性。
RAP fine aggregate high-modulus recycled asphalt mixture as well as preparation method and application thereof
The invention relates to an RAP fine aggregate high-modulus recycled asphalt mixture as well as a preparation method and application thereof. The high-modulus recycled asphalt mixture comprises the following components in percentage by mass: 20%-35% of RAP fine aggregate, 1.5%-3.8% of composite modified asphalt, 0.3%-1% of an interface reinforcing agent, 60%-80% of mineral aggregate and 0%-2% of mineral powder. Aiming at the problems that in the prior art, the utilization rate of aged asphalt in RAP fine aggregate is not high, and a recycled asphalt mixture matched with a structural layer cannot be provided, the aged asphalt in the RAP fine aggregate is fully utilized, and the high-modulus recycled asphalt mixture has the characteristics of high dynamic modulus, strong adhesion performance, fatigue resistance and the like; the high-value utilization of the RAP fine aggregate is realized, and the durability of the high-modulus recycled asphalt mixture is improved.
一种RAP细集料高模量再生沥青混合料及其制备方法和应用。所述高模量再生沥青混合料按质量百分比计包括以下组分：RAP细集料20%~35%，复合改性沥青1.5%~3.8%，界面增强剂0.3%~1%，矿料60%~80%，矿粉0%~2%。针对现有技术中存在RAP细集料中的老化沥青利用率不高、现有技术中无法提供与结构层位相匹配的再生沥青混合料，本发明充分利用RAP细集料中老化沥青，发明的高模量再生沥青混合料具有动态模量高、黏附性能强、耐疲劳等特点，实现了RAP细集料的高值化利用，提高了高模量再生沥青混合料的耐久性。
RAP fine aggregate high-modulus recycled asphalt mixture as well as preparation method and application thereof
一种RAP细集料高模量再生沥青混合料及其制备方法和应用
YU XIN (Autor:in) / GAO YUCHAO (Autor:in) / XIA QINGHUA (Autor:in) / MENG LINGGUO (Autor:in) / SHE ZHAOYU (Autor:in) / LI NING (Autor:in) / WANG AO (Autor:in)
24.09.2024
Patent
Elektronische Ressource
Chinesisch
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