陶瓷废料阻热沥青混合料路面性能分析
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摘要
为研究陶瓷废料在沥青路面阻热面层中的再生应用,以广西藤县陶瓷废料为研究对象,将陶瓷废料等体积替代部分集料形成陶瓷阻热面层.通过马歇尔试验、车辙试验评价陶瓷沥青混合料的高温稳定性;通过浸水马歇尔试验、冻融劈裂试验评价陶瓷沥青混合料的水稳定性;通过室内光照试验、路面温度场有限元模拟试验分析陶瓷沥青混合料的阻热性能.试验结果表明:陶瓷沥青混合料的高温性能和水稳性能良好,均能满足规范要求;陶瓷沥青混合料的阻热性能良好,选用合理的陶瓷掺配比例可显著提高沥青路面阻热性能;相比普通沥青路面,陶瓷掺量为60%的沥青路面在4,10,18 cm深度处的温度分别降低3.9,2.9,2.0℃,上、中、下面层的阻热效果分别提高6.7%,15.9%,17.8%,可有效降低沥青面层的温度.
In order to study the recycling application of ceramic wastes in asphalt pavement heat-resistant surface layer, the ceramic wastes of Tengxian County in Guangxi were taken as the research object. A portion of aggregates was replaced with ceramic wastes in equal volume to form ceramic heat-resistant surface layer. The high temperature performance of ceramic asphalt mixture was evaluated through Marshall test and rutting test. The water stability of ceramic asphalt mixture was evaluated by immersion Marshall test and freeze-thaw splitting test. The thermal resistance of ceramic asphalt mixture was analyzed through indoor lighting test and finite element simulation of pavement temperature field. Experimental results show that, the temperature performance and water stability of ceramic asphalt mixture are benign, which can meet the requirements of specifications. The thermal resistance of ceramic asphalt mixture is good, and the reasonable proportion of ceramic can improve the thermal resistance of asphalt pavement. Comparing with the ordinary asphalt pavement, the temperature at the depth of 4, 10 and 18 cm of asphalt pavement with 60% ceramics content decreases by 3.9, 2.9 and 2.0 ℃ respectively, and the thermal resistance of upper, middle and lower layers increases by 6.7%,15.9% and 17.8%respectively,which effectively reduces the temperature of asphalt pavement.
In order to study the recycling application of ceramic wastes in asphalt pavement heat-resistant surface layer, the ceramic wastes of Tengxian County in Guangxi were taken as the research object. A portion of aggregates was replaced with ceramic wastes in equal volume to form ceramic heat-resistant surface layer. The high temperature performance of ceramic asphalt mixture was evaluated through Marshall test and rutting test. The water stability of ceramic asphalt mixture was evaluated by immersion Marshall test and freeze-thaw splitting test. The thermal resistance of ceramic asphalt mixture was analyzed through indoor lighting test and finite element simulation of pavement temperature field. Experimental results show that, the temperature performance and water stability of ceramic asphalt mixture are benign, which can meet the requirements of specifications. The thermal resistance of ceramic asphalt mixture is good, and the reasonable proportion of ceramic can improve the thermal resistance of asphalt pavement. Comparing with the ordinary asphalt pavement, the temperature at the depth of 4, 10 and 18 cm of asphalt pavement with 60% ceramics content decreases by 3.9, 2.9 and 2.0 ℃ respectively, and the thermal resistance of upper, middle and lower layers increases by 6.7%,15.9% and 17.8%respectively,which effectively reduces the temperature of asphalt pavement.
引文
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[3] 胡小文.湿热地区刚性路面加铺沥青车辙防治技术[D].福州:福州大学,2016.
[4] 冯德成,张鑫,王广伟.陶瓷热阻磨耗层材料开发及性能验证[J].公路,2010(11):151-155.
[5] 高坤.掺陶瓷再生集料的沥青路面表面层性能研究[D].天津:河北工业大学,2015.
[6] 于智光,钱振东,杨理广.利用陶瓷废料的环氧沥青混合料路用性能研究[J].公路,2016(1):188-191.
[7] ABURKABA E,MUNIANDY R.Experimental study of high temperature properties and rheological behavior of ceramic modified asphalt[J].Social Science Electronic Publishing,2016,10(6):150-161.
[8] 邹玲,郑南翔,纪小平.热阻沥青混合料薄层罩面阻热性能研究[J].武汉理工大学学报,2014,36(6):41-46.DOI:10.3963/j.issn.1671-4431.2014.06.009.
[9] 车天凯,潘宝峰,兰晶晶.陶砂对沥青混合料性能影响的研究[J].新型建筑材料,2017,44(12):52-54.DOI:10.3969/j.issn.1001-702X.2017.12.015.
[10] 车天凯.陶粒细集料沥青混合料性能的试验研究[D].大连:大连理工大学,2017.
[11] 赵秋华.陶粒热阻式磨耗层材料试验研究[D].西安:长安大学,2012.
[12] 王广伟.热阻式超薄磨耗层的试验研究[D].黑龙江:哈尔滨工业大学,2008.
[13] 王广伟,贾胜强.陶瓷在超薄磨耗层中的应用研究[J].公路工程,2011,36(4):203-206.DOI:10.3969/j.issn.1674-0610.2011.04.051.
[14] 任永利.陶瓷废料用于沥青路面隔热层混合料的性能研究[D].广州:华南理工大学,2010.
[15] 钱振东,孟凡奇,杨理广.利用陶瓷废料的沥青混合料路用性能及隔热性能[J].公路交通科技,2015,32(5):19-24.DOI:10.3969/j.issn.1002-0268.2015.05.004.
[16] 孟凡奇,钱振东,杨理广.基于热物性的陶瓷沥青混凝土阻热性能研究[J].公路交通科技,2015,32(11):20-26.DOI:10.3969/j.issn.1002-0268.2015.11.004.
[17] 丁京,丁建明,罗桑.陶瓷热阻式沥青路面温度场仿真研究[J].交通信息与安全,2015,33(5):112-116.DOI:10.3963/j.issn1674-4861.2015.05.017.
[18] 刘朝晖,沙庆林.超薄层沥青混凝土SAC-10矿料级配比较试验研究[J].中国公路学报,2005,18(1):7-13.DOI:10.3321/j.issn:1001-7372.2005.01.002.