Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
High-modulus asphalt mixture as well as preparation method and application thereof
The invention discloses a high-modulus asphalt mixture as well as a preparation method and application thereof, and belongs to the technical field of pavement construction. The high-modulus asphalt mixture is prepared by mixing high-modulus asphalt, aggregate, machine-made sand and mineral powder according to a preset proportion, the high-modulus asphalt has the needle penetration of 15-40mm, the softening point of more than or equal to 60 DEG C, the ductility of more than or equal to 5cm, the flash point of more than or equal to 230 DEG C, the density of more than or equal to 1.1 g/cm < 3 >, the elastic recovery rate of more than or equal to 50%, the 48-hour softening point difference corresponding to storage stability segregation of less than or equal to 2.5 DEG C, the mass change of less than or equal to +/-0.5%, the residual needle penetration ratio of more than or equal to 70% and the residual ductility of more than or equal to 2cm. When the high-modulus asphalt, replacing SBS modified asphalt or asphalt doped with an anti-rut agent in the prior art,is used for pavement construction, the bearing capacity and the high-low temperature performance of an asphalt pavement can be effectively improved; in addition, the thickness of a structural layer can be reduced, resources are saved, and the environment is protected.
本发明公开了一种高模量沥青混合料及其制备方法与应用，属于路面施工技术领域。该高模量沥青混合料由高模量沥青、集料、机制砂和矿粉按预设比例混合而得；高模量沥青的针入度为15‑40mm，软化点≥60℃，延度≥5cm，闪点≥230℃，密度≥1.1g/cm3，弹性恢复率≥50％，贮存稳定性离析对应的48h软化点差≤2.5℃，质量变化≤±0.5％，残留针入度比≥70％，残留延度≥2cm。通过以上述高模量沥青代替现有技术中的SBS改性沥青或掺抗车辙剂的沥青用于路面施工，可有效提高沥青路面的承载力及高低温性能，此外，还能降低结构层厚，节约资源，保护环境。
High-modulus asphalt mixture as well as preparation method and application thereof
The invention discloses a high-modulus asphalt mixture as well as a preparation method and application thereof, and belongs to the technical field of pavement construction. The high-modulus asphalt mixture is prepared by mixing high-modulus asphalt, aggregate, machine-made sand and mineral powder according to a preset proportion, the high-modulus asphalt has the needle penetration of 15-40mm, the softening point of more than or equal to 60 DEG C, the ductility of more than or equal to 5cm, the flash point of more than or equal to 230 DEG C, the density of more than or equal to 1.1 g/cm < 3 >, the elastic recovery rate of more than or equal to 50%, the 48-hour softening point difference corresponding to storage stability segregation of less than or equal to 2.5 DEG C, the mass change of less than or equal to +/-0.5%, the residual needle penetration ratio of more than or equal to 70% and the residual ductility of more than or equal to 2cm. When the high-modulus asphalt, replacing SBS modified asphalt or asphalt doped with an anti-rut agent in the prior art,is used for pavement construction, the bearing capacity and the high-low temperature performance of an asphalt pavement can be effectively improved; in addition, the thickness of a structural layer can be reduced, resources are saved, and the environment is protected.
本发明公开了一种高模量沥青混合料及其制备方法与应用，属于路面施工技术领域。该高模量沥青混合料由高模量沥青、集料、机制砂和矿粉按预设比例混合而得；高模量沥青的针入度为15‑40mm，软化点≥60℃，延度≥5cm，闪点≥230℃，密度≥1.1g/cm3，弹性恢复率≥50％，贮存稳定性离析对应的48h软化点差≤2.5℃，质量变化≤±0.5％，残留针入度比≥70％，残留延度≥2cm。通过以上述高模量沥青代替现有技术中的SBS改性沥青或掺抗车辙剂的沥青用于路面施工，可有效提高沥青路面的承载力及高低温性能，此外，还能降低结构层厚，节约资源，保护环境。
High-modulus asphalt mixture as well as preparation method and application thereof
一种高模量沥青混合料及其制备方法与应用
WANG YONGXUE (Autor:in) / PAN MINGJIANG (Autor:in) / AILIKEMU AIZEZI (Autor:in) / HUANG YONGSHENG (Autor:in) / WANG SISI (Autor:in) / YANG BILIANG (Autor:in) / ZHANG QIYUE (Autor:in)
10.12.2021
Patent
Elektronische Ressource
Chinesisch
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