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A platform for research: civil engineering, architecture and urbanism
Preparation method of water reaction type cold patch asphalt mixture
The invention discloses a preparation method of a water reaction type cold patch asphalt mixture. Belongs to the technical field of road engineering materials, and is prepared by the following steps: (1) adding a diluent and a single-component moisture-curing polyurethane prepolymer into matrix asphalt according to a certain proportion to prepare a reaction type asphalt mixed solution with low viscosity and fluidity at normal temperature, and (2) mixing with mineral aggregate to prepare the cold patch asphalt mixture for normal-temperature construction. According to the prepared cold patch asphalt mixture, the single-component moisture-cured polyurethane prepolymer is subjected to curing reaction after being in contact with moisture in water or air to form a cross-linked network structure, so that the strength of the asphalt mixture is greatly improved, and the cold patch asphalt mixture is excellent in water resistance and durability.
本发明公开了一种水反应型冷补沥青混合料制备方法；属于道路工程材料技术领域，其制备步骤是：(1)、通过向基质沥青中加入一定比例的稀释剂和单组份湿固化聚氨酯预聚体制备成黏度低且常温下具有流动性的反应型沥青混合液，(2)、再通过与矿料拌合制备成常温施工的冷补沥青混合料。本发明制备的冷补沥青混合料中单组份湿固化聚氨酯预聚体接触到水或空气中湿气后发生固化反应，形成交联网状结构，极大提升沥青混合料的强度，且耐水性和耐久性极佳。
Preparation method of water reaction type cold patch asphalt mixture
The invention discloses a preparation method of a water reaction type cold patch asphalt mixture. Belongs to the technical field of road engineering materials, and is prepared by the following steps: (1) adding a diluent and a single-component moisture-curing polyurethane prepolymer into matrix asphalt according to a certain proportion to prepare a reaction type asphalt mixed solution with low viscosity and fluidity at normal temperature, and (2) mixing with mineral aggregate to prepare the cold patch asphalt mixture for normal-temperature construction. According to the prepared cold patch asphalt mixture, the single-component moisture-cured polyurethane prepolymer is subjected to curing reaction after being in contact with moisture in water or air to form a cross-linked network structure, so that the strength of the asphalt mixture is greatly improved, and the cold patch asphalt mixture is excellent in water resistance and durability.
本发明公开了一种水反应型冷补沥青混合料制备方法；属于道路工程材料技术领域，其制备步骤是：(1)、通过向基质沥青中加入一定比例的稀释剂和单组份湿固化聚氨酯预聚体制备成黏度低且常温下具有流动性的反应型沥青混合液，(2)、再通过与矿料拌合制备成常温施工的冷补沥青混合料。本发明制备的冷补沥青混合料中单组份湿固化聚氨酯预聚体接触到水或空气中湿气后发生固化反应，形成交联网状结构，极大提升沥青混合料的强度，且耐水性和耐久性极佳。
Preparation method of water reaction type cold patch asphalt mixture
一种水反应型冷补沥青混合料制备方法
GUO ZHAOMIN (author) / LYU WEI (author) / FAN WEIYU (author) / XU MENG (author) / LI QIUFEI (author) / DAI HUI (author) / WANG XINYU (author) / HE JIHUA (author) / TIAN YUQIAN (author)
2025-01-07
Patent
Electronic Resource
Chinese
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