含盐高湿环境下沥青路面耐久性检测方法及标准
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摘要
为了研究含盐高湿环境下沥青路面耐久性的检测方法,首先采用ANSYS建立圆柱形和板式试件的三维有限元模型,分析其受力特性及变形特征;然后进行圆柱形试件车辙试验和板式汉堡车辙试验,并用Origin 8.0软件对试验结果进行非线性指数拟合,确定试验条件.结果表明:两种形状试件的车辙试验结果相关性良好,含盐高湿环境下采用圆柱形试件取代板式试件进行浸水车辙试验来检测沥青混合料的耐久性是合理的;推荐在60℃或70℃温度下进行圆柱形试件浸水车辙试验,以车辙深度作为检测指标.
In order to study the durability test method of asphalt pavement under salty and humid environment,the ANSYS is used to compare and analysis the stress distribution and the deformation characteristics of cylindrical specimen and plate specimen used in rutting test,firstly.And then the Origin 8.0is used to analyze the correlation of the results from cylindrical specimen and Hamburg rutting test;and the cylindrical specimen rutting test conditions are determined.The results show that two kinds of shape specimen experiment results are in good correlation,so that the test method of the durability of asphalt pavement with cylindrical specimen under salty and high humidity environment is feasible.Finally,experimental temperature of 60 ℃ or 70 ℃,is recommended;and the cylindrical specimen rutting depth after rolled5 000 is advised as evaluation index.
In order to study the durability test method of asphalt pavement under salty and humid environment,the ANSYS is used to compare and analysis the stress distribution and the deformation characteristics of cylindrical specimen and plate specimen used in rutting test,firstly.And then the Origin 8.0is used to analyze the correlation of the results from cylindrical specimen and Hamburg rutting test;and the cylindrical specimen rutting test conditions are determined.The results show that two kinds of shape specimen experiment results are in good correlation,so that the test method of the durability of asphalt pavement with cylindrical specimen under salty and high humidity environment is feasible.Finally,experimental temperature of 60 ℃ or 70 ℃,is recommended;and the cylindrical specimen rutting depth after rolled5 000 is advised as evaluation index.
引文
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[2]陈少幸,张肖宁.沥青路面压实度评价及控制探讨[J].压实机械与施工技术,2006,(3):52-52.
[3]武建民,伍石生.沥青路面长期使用性能指标[J].长安大学学报,2004,(3):20-21.
[4]雷尊贵,阎申.广惠高速公路沥青路面工程质量控制[J].中南公路工程,2005,(3):134.
[5]吴桂金.用钻芯法检测评价沥青路面质量的可行性研究[J].中外公路,2008,(4):69-70.
[6]张国峰,徐永丽.基于芯样的沥青路面性能的评价指标体系研究[J].黑龙江交通科技,2008,(8):48-49.
[7]王新刚.基于圆柱形试件的沥青路面抗车辙性能评价及施工质量控制方法研究[D].西安:长安大学,2010.
[8]Pan T,He X,Shi X.Laboratory investigation of acetate-based deicing/anti-icing agents deteriorating airfield asphalt concrete[J].Asphalt Paving TechnologyProceedings,2008,(77):773-793.
[9]薛小刚.沥青混合料级配优化及配合比设计方法研究[D].西安:长安大学,2005.
[10]贾渝,曹荣吉,李本京.高性能沥青路面(Superpave)基础参考手册[M].北京:人民交通出版社,2005.
[11]郑鑫.基于Superpave和马歇尔方法的沥青混合料优化设计研究[D].西安:长安大学,2008.
[12]肖庆一,白锡庆,胡海学,等.新型除冰盐对沥青及沥青混合料的侵蚀试验研究[J].中国港湾建设,2012,(4):54-56.
[13]丛培良,陈拴发,陈华鑫.除冰盐对沥青混凝土性能的影响[J].公路,2011,(6):180-184.
[14]栗培龙,张争奇,李洪华,等.沥青混合料汉堡车辙试验条件及评价指标研究[J].武汉理工大学学报:交通科学与工程版,2011,35(1):113-117.
[15]杨博.基于有限元方法的沥青路面车辙影响因素分析及其应用研究[D].西安:长安大学,2010.