摘要
为探究地聚合物灌浆料在半柔性沥青路面中的性能影响,采用车辙试验、低温小梁弯曲试验、冻融劈裂试验、浸水马歇尔试验对掺地聚合物半柔性路面的高温稳定性、低温抗裂性以及水稳定性进行研究分析。采用单轴贯入试验和劈裂强度试验对掺地聚合物半柔性路面的抗剪性能、抗拉强度以及变形能力进行研究分析。试验结果表明:相比于其他沥青常规材料,地聚合物灌浆半柔性路面具有优良的高温稳定性,低温抗裂性能略有欠缺,水稳定性较好。地聚合物灌浆半柔性路面材料的抗剪强度、劈裂强度均随龄期增长而增加。采用地聚合物代替水泥作为半柔性路面材料中的灌浆材料,能保证性能的同时,还能满足环境保护、绿色生态的可持续发展要求。
In order to explore the influence of geopolymer grouting material on the performance of semi flexible asphalt pavement,rutting test,low-temperature trabecular bending test,freeze-thaw splitting test and immersion Marshall test are used to study and analyze the high-temperature stability,low-temperature crack resistance and water stability of geopolymer mixed semi flexible pavement.Uniaxial penetration test and splitting strength test are used to study and analyze the shear performance,tensile strength and deformation capacity of polymer mixed semi flexible pavement.The test results show that compared with other conventional asphalt materials,geopolymer grouted semi flexible pavement has excellent high-temperature stability,slight lack of low-temperature crack resistance and good water stability.The shear strength and splitting strength of geopolymer grouting semi flexible pavement materials increase with age.Using geopolymer instead of cement as grouting material in semi flexible pavement materials can not only ensure performance,but also meet the requirements of environmental protection and green ecological sustainable development.
作者
吴正光
董虎
吴帮伟
门光誉
龚泳帆
卢祎苗
WU Zhengguang;DONG Hu;WU Bangwei;MEN Guangyu;GONG Yongfan;LU Yimiao(College of Architectural Science and Engineering,Yangzhou University,Yangzhou 225127,China;Ningxia Communications Construction Co.,Ltd.,Yinchuan 750004,China)
出处
《混凝土》
CAS
北大核心
2023年第1期188-192,共5页
Concrete
基金
国家自然科学基金(52008365)
中建七局科技研发计划资助(CSCEC7b-2020-Z-20)
宁夏回族自治区重点研发计划(2021BDE13010)。
关键词
地聚合物灌浆料
半柔性路面
路用性能
力学性能
geopolymer grouting material
semi flexible pavement
road performance
mechanical properties
