首页|掺钢渣SMA-13沥青混合料抗滑功能特性提升及机理研究

掺钢渣SMA-13沥青混合料抗滑功能特性提升及机理研究

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文中分别采取2.36 mm以上钢渣集料、4.75 mm以上钢渣集料以及9.5 mm以上钢渣集料替换玄武岩集料,揭示其抗滑性能的提升机理.结果表明:钢渣集料赋予了钢渣沥青混合料更高的纹理特征,提高了钢渣沥青混合料的抗滑性能.其2.36 mm以上替换玄武岩集料的钢渣沥青混合料体现出最佳的粗糙度和抗滑性能,构造深度和摩擦力系数最高提升9.71%与47.5%.考虑到2.36 mm以上替换和4.75 mm以上替换性能提升无明显差异,建议将钢渣集料的最佳掺量定义为4.75 mm以上钢渣集料替换玄武岩集料.
Study on the Improvement and Mechanism of Anti-sliding Functional Characteristics of Steel Slag SMA-13 Asphalt Mixture
Steel slag aggregate over 2.36 mm,steel slag aggregate over 4.75 mm and steel slag aggre-gate over 9.5 mm were used to replace basalt aggregate,respectively,and the mechanism of impro-ving its anti-sliding performance was revealed.The results show that the steel slag aggregate endows the steel slag asphalt mixture with higher texture characteristics and improves the skid resistance of the steel slag asphalt mixture.The steel slag asphalt mixture with a thickness of more than 2.36 mm instead of basalt aggregate shows the best roughness and anti-sliding performance,and the structural depth and friction coefficient increase by 9.71%and 47.5%at the highest.Considering that there is no obvious difference in performance improvement between replacement of 2.36 mm or more and re-placement of 4.75 mm or more,it is suggested that the optimum content of steel slag aggregate should be defined as replacement of basalt aggregate with steel slag aggregate of 4.75 mm or more.

steel slagbasaltasphalt mixtureanti-slip functional properties

刘旷达、朱晓斌、林壮宏、谭勇、吴少鹏、朱耀阳、李元元

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广东省政府还贷高速公路管理中心 广州 510000

武汉理工大学硅酸盐国家重点实验室 武汉 430070

武汉工程大学土木工程与建筑学院 武汉 430074

钢渣 玄武岩 沥青混合料 抗滑功能特性

2024

武汉理工大学学报(交通科学与工程版)
武汉理工大学

武汉理工大学学报(交通科学与工程版)

CSTPCD
影响因子:0.462
ISSN:2095-3844
年,卷(期):2024.48(6)