| 就地热再生技术在沥青路面养护工程中的应用 |
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| 引用本文： | 盛燕萍,李海滨,孟建党.就地热再生技术在沥青路面养护工程中的应用[J].广西大学学报(自然科学版),2012(1):134-140. |
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| 作者姓名： | 盛燕萍 李海滨 孟建党 |
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| 作者单位： | 长安大学材料科学与工程学院;交通铺面材料教育部工程研究中心;西安科技大学建筑与土木工程学院;河南省交通厅京珠高速公路新乡至郑州管理处 |
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| 基金项目： | 国家自然科学基金资助项目(50978031);河南省交通运输厅科技项目(2010P239) |
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| 摘 要： | 为了研究就地热再生技术在沥青路面养护工程中的应用,在新郑高速公路养护工程中采用该技术对沥青路面进行维修。通过对旧沥青混合料进行试验检测,分析旧沥青路面混合料中沥青结合料和集料的性能衰减,并通过不同掺量的性能试验,确定合理的再生剂和新沥青结合料掺量,使沥青性能得到有效再生。通过添加新集料对旧沥青混合料中的集料进行配合比设计,使集料级配得到有效恢复。工程实践表明,旧沥青混合料经过掺加再生剂和新沥青及新集料后形成再生沥青混合料,其各项性能指标均满足规范要求。
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| 关 键 词： | 沥青路面 就地热再生 再生沥青混合料 再生剂 养护工程 |
Application of hot in-place recycling technology in asphalt pavement maintenance |
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| SHENG Yan-ping,LI Hai-bin,MENG Jian-dang.Application of hot in-place recycling technology in asphalt pavement maintenance[J].Journal of Guangxi University(Natural Science Edition),2012(1):134-140. |
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| Authors: | SHENG Yan-ping LI Hai-bin MENG Jian-dang |
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| Institution: | 1.College of Materials Science and Engineering,Chang’an University,Xi’an 710064,China; 2.Engineering Research Center of Transportation Materials,Ministry of Education,Xi’an 710064,China; 3.College of Architecture and Civil Engineering,Xi’an University of Science and Technology,Xi’an 710054,China; 4.Xinxiang-Zhengzhou Section Administration of Beijing-Zhuhai Expressway,Zhengzhou 450016,China) |
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| Abstract: | An hot in-place recycling technology was applied to Xinxiang-Zhengzhou section of Beijing-Zhuhai expressway to study the application of the technology in asphalt pavement maintenance.Based on the detection results of old asphalt mixture,the performance degradation of asphalt and aggregate in the old asphalt mixture was analyzed.The reasonable mixing amount of recycling agent and fresh asphalt were determined by performance experiments.The gradation of aggregate in old asphalt mixture was redesigned by adding new aggregate.The practical application results show that performance indexes of hot-in-place recycling of old asphalt mixture meet standard requirements. |
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| Keywords: | asphalt pavement hot-in-place recycling recycled asphalt mixture recycling agent maintenance |
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