摘要
为研究不同钢渣掺量对沥青混合料路用性能的影响,采用钢渣等体积替代同粒径玄武岩粗集料,制备了5种不同钢渣体积掺量的沥青混合料,对沥青混合料的高温、低温以及水稳定性能进行研究。选取动稳定度、车辙深度、最大弯拉应变、弯曲劲度模量、残留稳定度和冻融劈裂强度比作为评价指标,建立基于熵权TOPSIS法钢渣沥青混合料综合性能评价模型,并确定综合性能最优的钢渣体积掺量。研究结果表明:钢渣替代部分玄武岩粗集料可显著提高沥青混合料的高温稳定性和水稳定性;普通玄武岩沥青混合料的低温抗裂性明显优于钢渣沥青混合料;基于熵权TOPSIS理论,推荐沥青混合料中钢渣体积最佳掺量为50%。
In order to study the effect of different steel slag dosing on the road performance of asphalt mixes,five asphalt mixes with different steel slag volume dosing were prepared by replacing the same size basalt coarse aggregate with steel slag by equal volume,and the high temperature,low temperature and water stability performance of the asphalt mixes were studied.The dynamic stability,rut depth,maximum flexural tensile strain,bending stiffness modulus,residual stability and freeze-thaw splitting strength ratio were selected as evaluation indexes.The comprehensive performance evaluation model of steel slag asphalt mixture was established based on entropy weight TOPSIS method,and the optimal steel slag volume content was determined.The results showed that steel slag can significantly improve the high temperature stability and water stability of asphalt mixes by replacing some basalt coarse aggregates;The low temperature crack resistance of common basalt asphalt mixes is significantly better than that of steel slag asphalt mixes.Based on the entropy-weight TOPSIS theory,the optimal volume dosing of steel slag in asphalt mixes is recommended to be 50%.
作者
罗佳琦
陈国新
苏万忠
赵旭章
LUO Jiaqi;CHEN Guoxin;SU Wanzhong;ZHAO Xuzhang(College of Hydraulic and Civil Engineering,Xinjiang Agricultural University,Urumqi 830052,China;School of Civil Engineering,Jiaxing University,Jiaxing 314001,China;Xinjiang Huli Jiayuan Environmental Protection Technology Co.,Ltd.,Urumqi 830022,China)
出处
《金属矿山》
CAS
北大核心
2023年第5期348-353,共6页
Metal Mine
关键词
钢渣
沥青混合料
路用性能
熵权TOPSIS模型
综合评价
最佳钢渣掺量
steel slag
asphalt mixture
road performance
entropy weight TOPSIS model
comprehensive evaluation
optimal steel slag dosing
