Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
High-toughness ultrathin wearing layer and preparation method thereof
The invention discloses a high-toughness ultra-thin wearing layer and a preparation method thereof.The high-toughness ultra-thin wearing layer comprises a high-toughness ultra-thin overlay and a high-viscosity bonding layer, and the high-toughness ultra-thin overlay is prepared from, by mass, 70-75 parts of coarse aggregate, 15-25 parts of fine aggregate, 6.5-8 parts of mineral powder and 6-7.5 parts of high-viscosity modified asphalt; the raw material of the high-viscosity modified asphalt comprises terminal group modified hyperbranched polyester, and the terminal group modified hyperbranched polyester is a mixture of flexible long-chain modified hyperbranched polyester and hydroxyl-terminated hyperbranched polyester in a mass ratio of 1: (0.6-0.8). End group modified hyperbranched polyester can introduce a large number of holes and free volumes into a system, deformation can occur to absorb energy, introduction of long chains improves the number of holes and free volumes, hydroxyl terminated hyperbranched polyester can improve the binding force of all components in the system, load dispersion and energy transmission are facilitated, and the energy absorption efficiency is improved. And the deformation resistance of the wearing layer is improved.
本申请公开了一种高韧超薄磨耗层及其制备方法，该高韧超薄磨耗层包括高韧超薄罩面层和高粘粘接层，其中高韧超薄罩面层的原料包括以下质量份数的原料：粗集料70～75份、细集料15～25份、矿粉6.5～8份、高粘改性沥青6～7.5份，高粘改性沥青的原料包括端基改性超支化聚酯，端基改性超支化聚酯为质量比是1：（0.6～0.8）的柔性长链改性超支化聚酯和端羟基超支化聚酯的混合物。端基改性超支化聚酯能够在体系中引入大量的空穴和自由体积，可以发生形变吸收能量，长链的引入提高了空穴和自由体积的数量，端羟基超支化聚酯能够提高体系中各组分结合力，有利于负荷的分散以及能量的传输，提高磨耗层抗变形的能力。
High-toughness ultrathin wearing layer and preparation method thereof
The invention discloses a high-toughness ultra-thin wearing layer and a preparation method thereof.The high-toughness ultra-thin wearing layer comprises a high-toughness ultra-thin overlay and a high-viscosity bonding layer, and the high-toughness ultra-thin overlay is prepared from, by mass, 70-75 parts of coarse aggregate, 15-25 parts of fine aggregate, 6.5-8 parts of mineral powder and 6-7.5 parts of high-viscosity modified asphalt; the raw material of the high-viscosity modified asphalt comprises terminal group modified hyperbranched polyester, and the terminal group modified hyperbranched polyester is a mixture of flexible long-chain modified hyperbranched polyester and hydroxyl-terminated hyperbranched polyester in a mass ratio of 1: (0.6-0.8). End group modified hyperbranched polyester can introduce a large number of holes and free volumes into a system, deformation can occur to absorb energy, introduction of long chains improves the number of holes and free volumes, hydroxyl terminated hyperbranched polyester can improve the binding force of all components in the system, load dispersion and energy transmission are facilitated, and the energy absorption efficiency is improved. And the deformation resistance of the wearing layer is improved.
本申请公开了一种高韧超薄磨耗层及其制备方法，该高韧超薄磨耗层包括高韧超薄罩面层和高粘粘接层，其中高韧超薄罩面层的原料包括以下质量份数的原料：粗集料70～75份、细集料15～25份、矿粉6.5～8份、高粘改性沥青6～7.5份，高粘改性沥青的原料包括端基改性超支化聚酯，端基改性超支化聚酯为质量比是1：（0.6～0.8）的柔性长链改性超支化聚酯和端羟基超支化聚酯的混合物。端基改性超支化聚酯能够在体系中引入大量的空穴和自由体积，可以发生形变吸收能量，长链的引入提高了空穴和自由体积的数量，端羟基超支化聚酯能够提高体系中各组分结合力，有利于负荷的分散以及能量的传输，提高磨耗层抗变形的能力。
High-toughness ultrathin wearing layer and preparation method thereof
一种高韧超薄磨耗层及其制备方法
WU HAO (Autor:in) / SHAN JIANGANG (Autor:in) / ZHU CHENGYI (Autor:in) / ZHANG JIABIN (Autor:in) / SHAO JIEJIE (Autor:in) / GAO YU (Autor:in) / MENG YANGFENG (Autor:in) / XU YINTAO (Autor:in) / CAO JIANAN (Autor:in)
03.09.2024
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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