Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Large-proportion warm-mixing recycled asphalt mixture design method based on performance balance
The invention provides a large-proportion warm-mixing recycled asphalt mixture design method based on performance balance, and relates to the technical field of new materials for road engineering. The design method comprises the following steps: determining the grading range of a warm-mixing recycled asphalt mixture required by engineering construction, determining the blending proportion of a waste asphalt pavement material, determining the types of new asphalt, a regenerant and a warm-mixing agent, estimating the use amount Pnb of the new asphalt and the proportion of the new asphalt to the total use amount of the new asphalt, and designing and determining the optimal asphalt-aggregate ratio according to the Marshall mix proportion. The method comprises the following steps: testing the void ratio of the asphalt mixture at different temperatures to determine the optimal warm mixing regeneration construction temperature, preparing a mixture test piece, testing the typical pavement performance, namely high-temperature rut resistance, low-temperature cracking resistance and water damage resistance, dividing performance intervals according to the test result, and screening out the mixture combination type with balanced performance. The design method provided by the invention can be used for efficiently and reliably screening out the warm-mixed recycled asphalt mixture with the optimal large proportion while various properties are kept.
本发明提供一种基于性能均衡的大比例温拌再生沥青混合料设计方法，涉及道路工程新材料技术领域。所述设计方法包括确定工程建设需要的温拌再生沥青混合料级配范围、确定废旧沥青路面材料掺配比例、确定新沥青、再生剂、温拌剂类型、估算新沥青用量Pnb及其占总沥青用量的比例、马歇尔配合比设计确定最佳油石比、测试不同温度下沥青混合料的空隙率确定最佳的温拌再生施工温度、制备混合料试件，测试其典型路用性能，即高温抗车辙，低温抗开裂与抗水损害性能、依据测试结果划分性能区间，筛选出各项性能均衡的混合料组合类型等步骤。本发明提出的设计方法能够高效、可靠地筛选出各项性能同时保持最佳的大比例温拌再生沥青混合料。
Large-proportion warm-mixing recycled asphalt mixture design method based on performance balance
The invention provides a large-proportion warm-mixing recycled asphalt mixture design method based on performance balance, and relates to the technical field of new materials for road engineering. The design method comprises the following steps: determining the grading range of a warm-mixing recycled asphalt mixture required by engineering construction, determining the blending proportion of a waste asphalt pavement material, determining the types of new asphalt, a regenerant and a warm-mixing agent, estimating the use amount Pnb of the new asphalt and the proportion of the new asphalt to the total use amount of the new asphalt, and designing and determining the optimal asphalt-aggregate ratio according to the Marshall mix proportion. The method comprises the following steps: testing the void ratio of the asphalt mixture at different temperatures to determine the optimal warm mixing regeneration construction temperature, preparing a mixture test piece, testing the typical pavement performance, namely high-temperature rut resistance, low-temperature cracking resistance and water damage resistance, dividing performance intervals according to the test result, and screening out the mixture combination type with balanced performance. The design method provided by the invention can be used for efficiently and reliably screening out the warm-mixed recycled asphalt mixture with the optimal large proportion while various properties are kept.
本发明提供一种基于性能均衡的大比例温拌再生沥青混合料设计方法，涉及道路工程新材料技术领域。所述设计方法包括确定工程建设需要的温拌再生沥青混合料级配范围、确定废旧沥青路面材料掺配比例、确定新沥青、再生剂、温拌剂类型、估算新沥青用量Pnb及其占总沥青用量的比例、马歇尔配合比设计确定最佳油石比、测试不同温度下沥青混合料的空隙率确定最佳的温拌再生施工温度、制备混合料试件，测试其典型路用性能，即高温抗车辙，低温抗开裂与抗水损害性能、依据测试结果划分性能区间，筛选出各项性能均衡的混合料组合类型等步骤。本发明提出的设计方法能够高效、可靠地筛选出各项性能同时保持最佳的大比例温拌再生沥青混合料。
Large-proportion warm-mixing recycled asphalt mixture design method based on performance balance
一种基于性能均衡的大比例温拌再生沥青混合料设计方法
ZHANG DERUN (Autor:in) / XU PEIXIN (Autor:in) / ZHOU HONGYUN (Autor:in) / XIONG PINGGAO (Autor:in) / LI XIAODONG (Autor:in) / ZENG WEI (Autor:in) / WANG FUSONG (Autor:in) / ZHAO YANG (Autor:in) / GUO ZHE (Autor:in) / WANG LU (Autor:in)
01.09.2023
Patent
Elektronische Ressource
Chinesisch
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