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材料导报  2023, Vol. 37 Issue (10): 22080175-7    https://doi.org/10.11896/cldb.22080175
  城市固废材料高效处理及资源化利用 |
钢渣掺量对橡胶沥青混合料ARAC-13性能的影响
柳力1,2, 朱晓明1, 刘朝晖1,2,*, 李文博1, 杨程程1, 黄优1,2, 刘磊鑫1
1 长沙理工大学交通运输工程学院,长沙 410114
2 长沙理工大学公路养护技术国家工程研究中心,长沙 410114
Effect of Steel Slag Content on Performance of Rubber Mixture ARAC-13
LIU Li1,2, ZHU Xiaoming1, LIU Zhaohui1,2,*, LI Wenbo1, YANG Chengcheng1, HUANG You1,2, LIU Leixin1
1 School of Traffic & Transportation Engineering, Changsha University of Science & Technology, Changsha 410114, China
2 National Engineering Research Center of Highway Maintenance Technology, Changsha University of Science & Technology, Changsha 410114, China
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摘要 为提高钢铁废渣的综合利用率和经济效益、优化环境,采用体积替代法进行钢渣沥青混合料组成设计,通过设计膨胀破坏试验新方法分析钢渣沥青混合料的体积稳定性,基于车辙试验、冻融劈裂试验和低温小梁弯曲试验等,开展不同钢渣掺量下的ARAC-13沥青混合料路用性能研究,并依托广西滨海公路项目对钢渣沥青混合料路面进行经济效益评估。结果表明,ARAC-13沥青混合料的毛体积相对密度和最佳油石比均与钢渣掺量呈正相关性,钢渣掺量的增加会降低混合料的体积稳定性,增大体积膨胀风险。当钢渣100%等体积替代粗集料时,ARAC-13沥青混合料的动稳定度、残留稳定度、冻融劈裂强度比、最大弯拉应变(-10 ℃)、摆值和构造深度均有不同程度的提高,可显著提升ARAC-13沥青混合料的路用性能,且可节约7.0%左右的材料成本,具有较大的应用前景和经济价值。
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柳力
朱晓明
刘朝晖
李文博
杨程程
黄优
刘磊鑫
关键词:  钢渣  ARAC-13  路用性能  体积稳定性  经济效益    
Abstract: To improve the comprehensive utilization rate and economic benefit of steel slag and optimize the environment, the volume substitution method was used to design the composition of steel slag asphalt mixture. The volume stability of steel slag asphalt mixture was analyzed by designing a new method of expansion failure test. Through the rutting test, freeze-thaw splitting test, and low-temperature beam bending test, the road performance of ARAC-13 asphalt mixture with different steel slag contents was studied, and the economic benefits of steel slag asphalt mixture pavement were evaluated based on the Coastal Highway Project in Guangxi. The results showed that the volume relative density of the ARAC-13 asphalt mixture and the optimum asphalt content are both positively correlated with the steel slag content. The increase in steel slag content will reduce the volume stability of the mixture and increase the risk of volume expansion. When the steel slag replaces the coarse aggregate with 100% volume, the dynamic stability, residual stability, freeze-thaw splitting strength ratio, maximum flexural strain (-10 ℃), pendulum value, and structural depth of the ARAC-13 asphalt mixture are improved, to some varying degrees. A large amount of steel slag (100vol%) can not only significantly improve the road performance of ARAC-13 asphalt mixture, but also save about 7.0% of the material cost, which has great application prospects and economic value.
Key words:  steel scoria    ARAC-13    pavement performance    volume stability    economic benefit
出版日期:  2023-05-25      发布日期:  2023-05-23
ZTFLH:  U414  
基金资助: 国家重点研发项目(2021YFB2601000);湖南省自然科学基金(2020JJ5578;2022JJ40479);湖南省教育厅自然科学基金优秀青年项目(20B033;21B0296)
通讯作者:  *刘朝晖,长沙理工大学二级教授、博士研究生导师。1990年6月,本科毕业于长沙交通学院道路工程专业;2000年12月,获湖南大学建筑与土木工程硕士学位;2007年12月,获长沙理工大学道路与铁道工程博士学位。主要从事路面结构与材料等方面的研究工作。为国家百千万人才工程人选、国家有突出贡献中青年专家,享受国务院政府特殊津贴。获国家科技进步二等奖2项。发表学术论文100余篇。723772885@qq.com;   
作者简介:  柳力,长沙理工大学交通运输工程学院副教授、硕士研究生导师。2011年6月,本科毕业于中南林业科技大学;2014年6月,毕业于长沙理工大学,获道路与铁道工程硕士学位;2017年6月毕业于长沙理工大学,获道路与铁道工程博士学位。主要从事路面结构与新材料方面的研究工作。发表学术论文50余篇,其中SCI、EI检索论文20余篇。
引用本文:    
柳力, 朱晓明, 刘朝晖, 李文博, 杨程程, 黄优, 刘磊鑫. 钢渣掺量对橡胶沥青混合料ARAC-13性能的影响[J]. 材料导报, 2023, 37(10): 22080175-7.
LIU Li, ZHU Xiaoming, LIU Zhaohui, LI Wenbo, YANG Chengcheng, HUANG You, LIU Leixin. Effect of Steel Slag Content on Performance of Rubber Mixture ARAC-13. Materials Reports, 2023, 37(10): 22080175-7.
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http://www.mater-rep.com/CN/10.11896/cldb.22080175  或          http://www.mater-rep.com/CN/Y2023/V37/I10/22080175
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