Numerical assessment of the structural contribution of porous friction courses (PFC)

被引：13
作者：
Manrique-Sanchez, Laura [1 ]
Caro, Silvia [1 ]
机构：
[1] Univ Andes, Dept Civil & Environm Engn, Bogota, Colombia
来源：
CONSTRUCTION AND BUILDING MATERIALS | 2019年 / 225卷
关键词：
Porous friction course; PFC; Pavement structural capacity; Finite elements; FE; Stone-on-stone contacts; ON-STONE CONTACT; MIX DESIGN; COURSE MIXTURES; MINERAL FILLER;
D O I：
10.1016/j.conbuildmat.2019.07.200
中图分类号：
TU [建筑科学];
学科分类号：
0813 ;
摘要：
Porous Friction Courses (PFC) are Hot Mix Asphalt (HMA) materials with high air void contents that are placed as thin layers on top of conventional flexible pavements to obtain safety and noise-reduction benefits. These layers are considered an additional component of the pavement and, consequently, their structural contribution is not typically considered. This paper uses Finite Element (FE) modelling to evaluate the potential contribution of PFCs with different thicknesses to the overall structural capacity of three different flexible pavements. The results show that PFC layers do contribute to the pavement structural capacity but that this contribution strongly depends on their different microstructural and geometrical characteristics. (C) 2019 Elsevier Ltd. All rights reserved.
引用
收藏
页码：754 / 764
页数：11
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