Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Recycled asphalt mixture pavement mix proportion design method suitable for high-temperature rainy areas
The invention relates to a mix proportion design method of a recycled asphalt mixture pavement suitable for a high-temperature rainy region. The mix proportion design method specifically comprises the following steps: drawing up an RAP mixing amount; determining an initial asphalt-aggregate ratio and a regenerant mixing amount; inspecting the performance of the raw materials; determining the optimal asphalt-aggregate ratio of the recycled asphalt mixture with different RAP mixing amounts by adopting a Marshall test; performing a French multi-burning test on the recycled asphalt mixture to obtain a water stability index compressive strength ratio; performing a high-temperature creep test on the recycled asphalt mixture with different RAP mixing amounts under the optimal asphalt-aggregate ratio to obtain a high-temperature performance index; the final RAP mixing amount is determined according to the compressive strength ratio of the recycled asphalt mixture and the change of the creep index along with the RAP mixing amount; starting from the water stability and the high-temperature performance, the mix proportion of the recycled asphalt mixture is designed, the optimal asphalt-aggregate ratio, the optimal regenerant mixing amount and the appropriate RAP mixing amount are determined, the purpose of optimal RAP utilization is achieved, and a new thought is provided for design of the recycled asphalt mixture in the high-temperature rainy region.
一种适用于高温多雨地区的再生沥青混合料路面配合比设计方法，具体包括以下步骤：拟定RAP掺量；确定初始油石比与再生剂掺量；原材料性能的检验；采用马歇尔试验确定不同RAP掺量再生沥青混合料的最佳油石比；对再生沥青混合料进行法国多烈士试验获得水稳定性能指标抗压强度比；对最佳油石比下的不同RAP掺量再生沥青混合料进行高温蠕变试验获得高温性能指标；根据再生沥青混合料的抗压强度比、蠕变指标随RAP掺量变化而确定最终的RAP掺量；本发明从水稳定性能、高温性能出发，对再生沥青混合料进行配合比设计，确定最佳油石比、最佳再生剂掺量以及适宜RAP掺量，达到最佳利用RAP的目的，为高温多雨地区再生沥青混合料的设计提供了新思路。
Recycled asphalt mixture pavement mix proportion design method suitable for high-temperature rainy areas
The invention relates to a mix proportion design method of a recycled asphalt mixture pavement suitable for a high-temperature rainy region. The mix proportion design method specifically comprises the following steps: drawing up an RAP mixing amount; determining an initial asphalt-aggregate ratio and a regenerant mixing amount; inspecting the performance of the raw materials; determining the optimal asphalt-aggregate ratio of the recycled asphalt mixture with different RAP mixing amounts by adopting a Marshall test; performing a French multi-burning test on the recycled asphalt mixture to obtain a water stability index compressive strength ratio; performing a high-temperature creep test on the recycled asphalt mixture with different RAP mixing amounts under the optimal asphalt-aggregate ratio to obtain a high-temperature performance index; the final RAP mixing amount is determined according to the compressive strength ratio of the recycled asphalt mixture and the change of the creep index along with the RAP mixing amount; starting from the water stability and the high-temperature performance, the mix proportion of the recycled asphalt mixture is designed, the optimal asphalt-aggregate ratio, the optimal regenerant mixing amount and the appropriate RAP mixing amount are determined, the purpose of optimal RAP utilization is achieved, and a new thought is provided for design of the recycled asphalt mixture in the high-temperature rainy region.
一种适用于高温多雨地区的再生沥青混合料路面配合比设计方法，具体包括以下步骤：拟定RAP掺量；确定初始油石比与再生剂掺量；原材料性能的检验；采用马歇尔试验确定不同RAP掺量再生沥青混合料的最佳油石比；对再生沥青混合料进行法国多烈士试验获得水稳定性能指标抗压强度比；对最佳油石比下的不同RAP掺量再生沥青混合料进行高温蠕变试验获得高温性能指标；根据再生沥青混合料的抗压强度比、蠕变指标随RAP掺量变化而确定最终的RAP掺量；本发明从水稳定性能、高温性能出发，对再生沥青混合料进行配合比设计，确定最佳油石比、最佳再生剂掺量以及适宜RAP掺量，达到最佳利用RAP的目的，为高温多雨地区再生沥青混合料的设计提供了新思路。
Recycled asphalt mixture pavement mix proportion design method suitable for high-temperature rainy areas
适用于高温多雨地区的再生沥青混合料路面配合比设计方法
LI XUELIAN (Autor:in) / LYU SONGTAO (Autor:in) / XIA JIANFANG (Autor:in) / NING ZUOFEI (Autor:in) / CHEN PENG (Autor:in) / GE DONGDONG (Autor:in) / XU JIE (Autor:in) / ZHU SHUO (Autor:in)
30.12.2022
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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