Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
High-modulus asphalt mixture mix proportion secondary performance balance design method
The invention discloses a high-modulus asphalt mixture mix proportion secondary performance balance design method. The method comprises the following steps: selecting high-modulus asphalt mixture gradation; determining an initial asphalt-aggregate ratio OAC according to the volume index parameters, and determining an initial high-modulus agent mixing amount according to instructions; preparing more than three groups of high-modulus asphalt mixtures with different asphalt-aggregate ratios and an interval of 0.1% or 0.2% according to up-down floating of OAC; testing to obtain the dynamic stability DS of mixtures with different asphalt-aggregate ratios and the damage strain index epsilon B of the low-temperature bending small beam; and carrying out dimensionless treatment on the dynamic stability and the low-temperature bending failure strain index of the high-modulus asphalt mixture. According to the method, the performance balance is used as a design concept, the high-modulus asphalt mixture is subjected to balance design, the high and low temperature performance balance and the modulus and fatigue performance balance of the mixture are considered, the optimal asphalt-aggregate ratio and the optimal high-modulus agent mixing amount are determined by combining the two-time balance design, and a new thought is provided for fine design of the high-modulus asphalt mixture.
本发明公开了一种高模量沥青混合料配合比二次性能平衡设计方法，包括以下步骤：选定高模量沥青混合料级配；根据体积指标参数确定初始油石比OAC，根据使用说明确定初始高模量剂掺量；根据OAC上下浮动，制备3组以上不同油石比，间隔0.1％或0.2％高模量沥青混合料；试验获得不同油石比混合料的动稳定度DS与低温弯曲小梁破坏应变指标εB；对高模量沥青混合料的动稳定度与低温弯曲破坏应变指标进行无量纲化处理。本发明以性能平衡作为设计理念，对高模量沥青混合料进行平衡设计，兼顾混合料的高低温性能平衡、模量与疲劳性能平衡，综合两次平衡设计确定最佳的油石比与最佳高模量剂掺量，为高模量沥青混合料的精细化设计提供新思路。
High-modulus asphalt mixture mix proportion secondary performance balance design method
The invention discloses a high-modulus asphalt mixture mix proportion secondary performance balance design method. The method comprises the following steps: selecting high-modulus asphalt mixture gradation; determining an initial asphalt-aggregate ratio OAC according to the volume index parameters, and determining an initial high-modulus agent mixing amount according to instructions; preparing more than three groups of high-modulus asphalt mixtures with different asphalt-aggregate ratios and an interval of 0.1% or 0.2% according to up-down floating of OAC; testing to obtain the dynamic stability DS of mixtures with different asphalt-aggregate ratios and the damage strain index epsilon B of the low-temperature bending small beam; and carrying out dimensionless treatment on the dynamic stability and the low-temperature bending failure strain index of the high-modulus asphalt mixture. According to the method, the performance balance is used as a design concept, the high-modulus asphalt mixture is subjected to balance design, the high and low temperature performance balance and the modulus and fatigue performance balance of the mixture are considered, the optimal asphalt-aggregate ratio and the optimal high-modulus agent mixing amount are determined by combining the two-time balance design, and a new thought is provided for fine design of the high-modulus asphalt mixture.
本发明公开了一种高模量沥青混合料配合比二次性能平衡设计方法，包括以下步骤：选定高模量沥青混合料级配；根据体积指标参数确定初始油石比OAC，根据使用说明确定初始高模量剂掺量；根据OAC上下浮动，制备3组以上不同油石比，间隔0.1％或0.2％高模量沥青混合料；试验获得不同油石比混合料的动稳定度DS与低温弯曲小梁破坏应变指标εB；对高模量沥青混合料的动稳定度与低温弯曲破坏应变指标进行无量纲化处理。本发明以性能平衡作为设计理念，对高模量沥青混合料进行平衡设计，兼顾混合料的高低温性能平衡、模量与疲劳性能平衡，综合两次平衡设计确定最佳的油石比与最佳高模量剂掺量，为高模量沥青混合料的精细化设计提供新思路。
High-modulus asphalt mixture mix proportion secondary performance balance design method
一种高模量沥青混合料配合比二次性能平衡设计方法
MENG LINGGUO (Autor:in) / WANG KUN (Autor:in) / ZHU FUWAN (Autor:in) / PAN LIANGSHENG (Autor:in) / LI XIANGYANG (Autor:in) / ZHU QIYANG (Autor:in) / WANG SHAOHUA (Autor:in) / ZHANG QIUJU (Autor:in) / SHENG YUNNI (Autor:in)
13.12.2024
Patent
Elektronische Ressource
Chinesisch
IPC:
G16C
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