摘要
分别以20%及23%两种设计目标空隙率拌和沥青混合料,在嘉闵高架北延伸工程中铺筑两段试验路。通过压实度、平整度(IRI)、渗水系数、横向力系数等指标,研究其路用性能,并对SMA路面及OGFC降噪路面进行噪声测试,定量分析其降噪效果。研究表明,采用类似于SMA路面的施工工艺条件下,OGFC路面的各项力学性能指标均能达到规范要求,且车速越高,OGFC路面降噪效果越显著。
Two asphalt pavements were paved in the north extension project of Jiamin viaduct based on different design target voids.Pavement performance of SMA and OGFC is quantitatively analyzed by compaction degree,ride quality(IRI),permeability coefficient and transverse force coefficient.The results showed that the mechanical property index of OFGC could meet specification requirements under the conditions of SMA construction technology.The effect of noise reduction was more significant with the increase of vehicle speed.
出处
《上海公路》
2021年第2期1-5,M0003,共6页
Shanghai Highways
关键词
OGFC
试验段
路用性能
排水降噪
OGFC
test section
pavement performance
drainage and denoise
