乳化沥青冷再生混合料中的复合胶浆性质
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摘要
对乳化沥青冷再生混合料中的三种胶浆系统进行了研究,包括沥青+矿粉、乳化沥青残留物+矿粉和乳化沥青残留物+水泥。结果表明,因为水泥水化作用的存在,水泥-乳化沥青残留物胶浆表现出更高的模量增率效果;模量和相位角变化呈现与普通矿粉-沥青胶浆和矿粉-乳化沥青胶浆不同的特点,且不随粉胶比呈现线性单调的变化;胶浆界面黏结力与矿粉-沥青胶浆相当,并在低粉胶比范围内远高于单独利用矿粉的乳化沥青残留物胶浆。
This article simulated three mortar systems including mineral filler-asphalt,mineral filler-emulsified asphalt residue and cement-emulsified asphalt residue in cold recycled mixture with emulsified asphalt. The results show that cement-emulsified asphalt residue mortar owns higher modulus than the other two mortars because of cement hydration. The change of modulus and phase angle is different from that of ordinary mineral powder-asphalt mortar and mineral powder-emulsified asphalt mortar, and does not change linearly monotonously with powder-to-binder ratio. At the same time, the interface adhesive ability of cementemulsified asphalt residue is similar to that of the mineral filler-asphalt mortar, and much higher than that of the mineral filler-emulsified asphalt residue mortar in a lower filler dosage. In the process of mixture production, emulsified asphalt provides the initial stability of the mixture, and cement hydration and the formation of composite mortar system are the guarantee of the final cold recycled mixture strength.
This article simulated three mortar systems including mineral filler-asphalt,mineral filler-emulsified asphalt residue and cement-emulsified asphalt residue in cold recycled mixture with emulsified asphalt. The results show that cement-emulsified asphalt residue mortar owns higher modulus than the other two mortars because of cement hydration. The change of modulus and phase angle is different from that of ordinary mineral powder-asphalt mortar and mineral powder-emulsified asphalt mortar, and does not change linearly monotonously with powder-to-binder ratio. At the same time, the interface adhesive ability of cementemulsified asphalt residue is similar to that of the mineral filler-asphalt mortar, and much higher than that of the mineral filler-emulsified asphalt residue mortar in a lower filler dosage. In the process of mixture production, emulsified asphalt provides the initial stability of the mixture, and cement hydration and the formation of composite mortar system are the guarantee of the final cold recycled mixture strength.
引文
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[20]贾少磊,刘国祥,郭宁,等.乳化沥青的流变行为初步研究[J].石油化工高等学校学报,2014,27(3):2931.Jia S L,Liu G X,Guo N,et al.Rheological behavior of emulsified asphalt[J].Journal of Petrochemical Universities,2014,27(3):2931.
[2]樊统江,徐栋良,贾敬鹏,等.沥青砼路面再生技术及其在国外的发展[J].重庆交通学院学报,2007,26(3):8287.Fan T J,Xu D L,Jia J P,et al. Recycling technology for asphalt concrete pavement and its development in overseas[J].Journal of Chongqing Jiaotong University,2007,26(3):8287.
[3]丛玉凤,李茂平,黄玮.SBRC9石油树脂改性沥青的研究[J].辽宁石油化工大学学报,2016,36(1):1619.Cong Y F,Li M P,Huang W.Study on SBRC9 petroleum resinmodified asphalt[J].Journal of Liaoning Shihua University,2016,36(1):1619..
[4] Huang B S,Shu X.Laboratory investigation of portland cment concrete containing recycled asphalt pavements[J].Cement and Contrete Research,2005,35(10):20132208.
[5] Isola M,Betti G,Marradi A,et al.Evaluation of cement treated mixtures with high percentage of reclaimed asphalt pavement[J].Construction and Building Materials,2013(48):238247.
[6] Niazi Y,Jalili M.Effect of portland cement and lime additives on properties of cold inplace recycled mixtures with asphalt emulsion[J].Construction and Building Materials,2009,23(3):13381343.
[7]曾梦澜,于永生,吴超凡.水泥对乳化沥青冷再生沥青混合料使用性能的影响[J].公路交通科技(应用技术版),2008(4):5962.Zeng M L,Yu Y S,Wu C F.Influence on pavement performance of emulsified asphalt cold recycled mixture by cement[J].Journal of Highway and Transportation Research and Development,2008(4):5962.
[8]严金海,倪富健,陶卓辉,等.水泥对乳化沥青就地冷再生混合料的作用机理研究[J].交通运输工程与信息学报,2009,7(4):3845.Yan J H,Ni F J,Tao Z H.et al.Mechanism of cement to the cold inplace recycled mixture of asphalt emulsion[J].Journal of Transportation Engineering and Information,2009,7(4):3845.
[9]周源.水泥含量对乳化沥青冷再生混合料疲劳性能的影响[J].中外公路,2013(1):226229.Zhou Y. The effect of cement content on the fatigue properties of mixture cold recycling emulsified asphalt[J]. Journal of China&Foreign Highway,2013(1):226229.
[10]魏唐中,洪锦祥,林俊涛.水泥与乳化沥青对冷再生强度的影响及作用机理[J].建筑材料学报,2017,20(2):310315.Wei T Z,Hong J X,Lin J T. Effect and action mechanism of cement and emulsified asphalt on the strength of cold regeneration[J].Journal of Building Materials,2017,20(2):310315
[11]王振军,沙爱民.水泥乳化沥青复合胶浆微观结构特征[J].长安大学学报,2009,29(3):1114.Wang Z J,Sha A M. Microstructure characters of cement emulsified asphalt composite mastics[J]. Journal of Chang’an University(Natural Science Edition),2009,29(3):1114.
[12]交通部公路科学研究所.公路沥青路面施工技术规范JTG F402004[S].北京:人民交通出版社,2004.
[13]樊亮,魏建明,张玉贞,等.矿粉对沥青胶浆的性质影响及作用机理[J].建筑材料学报,2014,17(6):10961101.Fan L,Wei J M,Zhang Y Z,et al. Acting mechanism and performance of asphalt mortar by mineral filler[J]. Journal of Building Materials,2014,17(6):10961101.
[14]朱辉.矿物填料对乳化沥青胶浆性能的影响[D].济南:山东建筑大学,2015.
[15]吴建涛.基于流变特性的沥青与集料交互作用能力的研究[D].哈尔滨:哈尔滨工业大学,2009.
[16]樊亮,王林,申全军,等.沥青胶泥的界面黏结力测试及研究[J].新型建筑材料,2009,36(5):3235.Fan L,Wang L,Shen Q J,et al.Adhesive ability test and research on asphalt mortar interface[J].New Building Material,2009,36(5):3235.
[17]沙爱民,王振军.水泥乳化沥青混凝土胶浆集料界面微观结构[J].长安大学学报(自然科学版),2008,28(4):14.Sha A M,Wang Z J. Microstructure of masticsaggregate interface in cement emulsified asphalt concrete[J]. Journal of Chang’an University(Natural Science Edition),2008,28(4):14.
[18]霍亮,张涛,蔺喜强.低水胶比混凝土力学性能及水化物相微观结构[J].混凝土,2014(3):5558.Huo L,Zhang T,Lin X Q,et al.Mechanical properties and hydration phase microstructure of concrete with low waterbinder ration[J].Concrete,2014(3):5558.
[19]侯曙光,赵华.乳化剂及改性剂对沥青性能影响的机理分析[J].筑路机械与施工机械化,2010,27(1):5962.Hou S G,Zhao H.Mechanism analysis of influence of emulsifier and modifier on asphalt performance[J].Road Machinery&Construction Mechanization,2010,27(1):5962.
[20]贾少磊,刘国祥,郭宁,等.乳化沥青的流变行为初步研究[J].石油化工高等学校学报,2014,27(3):2931.Jia S L,Liu G X,Guo N,et al.Rheological behavior of emulsified asphalt[J].Journal of Petrochemical Universities,2014,27(3):2931.