The evolution of tire-road wear particles and road surface texture under rolling friction

被引：4
作者：
He, Chuan [1 ,2 ]
Jiang, Wei [1 ,2 ]
Wang, Tong [1 ,2 ]
Yuan, Dongdong [1 ,2 ]
Sha, Aimin [1 ,2 ]
机构：
[1] Changan Univ, Key Lab Special Area Highway Engn, Minist Educ, South2nd Ring Rd Middle Sect, Xian 710064, Shaanxi, Peoples R China
[2] Changan Univ, Sch Highway, South2nd Ring Rd Middle Sect, Xian 710064, Shaanxi, Peoples R China
来源：
CONSTRUCTION AND BUILDING MATERIALS | 2024年 / 447卷
基金：
中国国家自然科学基金;
关键词：
Non-exhaust emissions; Road surface texture; Tire-road wear; Re-suspension dust; Asphalt concrete pavement; ULTRAFINE PARTICLES; PARTICULATE MATTER; ON-ROAD; DUST; PAVEMENT; URBAN; EMISSIONS; FINE; GENERATION; SIZE;
D O I：
10.1016/j.conbuildmat.2024.138167
中图分类号：
TU [建筑科学];
学科分类号：
0813 ;
摘要：
Traffic-related non-exhaust emissions are an important part of air pollution, which can adversely affect human health when inhaled. Tire-road wear is a significant source of these emissions and originates from tire-road friction. To gain a deeper understanding of the relationship between tire-road wear particles and road surface texture under rolling friction, this study conducted long-term durability experiments using a Model Mobile Load Simulator at 1/3rd scale to form a closed environmental test system. The experiments were conducted under 30 degrees C, 50 % relative humidity, 0.7 MPa tire-ground pressure, and 5.4 km/h rolling speed. Based on an analysis of asphalt concrete-13 Marshall samples' British Pendulum Number (BPN) value, Mean Texture Depth (MTD), wear particle size distribution, particulate matter (PM) concentration, and thermogravimetric analysis during 1600,000 rolling times, this study draws the following conclusions: This indoor research has indicated that the weight ratio of tire and asphalt wear to aggregates and mineral fillers is approximately 4.5:5.5 (after stabilization). When the tire contacts the aggregate exposed after asphalt film peeling, it significantly increases PM10 concentration. Under the rolling friction of the tire-road contact, the quality loss of asphalt concrete follows an exponential decay curve with an R-2 of 0.99. Road (asphalt concrete pavement) wear per square meter of tire-road contact was 5.32x10(-4) g and 2.13x10(-4) g (before and after asphalt film peeling). It is hoped that this study will contribute to the field of tire-road wear, including non-exhaust emissions, and provide methods and theoretical support for mitigating re-suspension dust.
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页数：17
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