摘要
冬季降雪使许多公路与城市道路出现积雪结冰的问题非常严重,路面结冰不仅影响行车安全,同时也降低了道路的通行能力和运输效率,给我国道路安全和经济发展带来了严重的影响。目前,常用的除冰雪方法是在路面上撒布融雪剂,但融雪剂具有腐蚀性,易污染环境。其他方法中,人工清除法效率低,费用高;机械除雪只适用于便于管理的较小范围的除雪;热力融冰雪方法造价较高且技术并不成熟。
为此从混合料自身角度出发,寻找一种既有效又环保的破冰的方法成为了一个大的研究方向。橡胶颗粒沥青混合料作为一种新型的道路路面混合材料恰好具有这种性能,同时能够解决废旧轮胎的处理问题、缓解我国的环境压力、节约资源。
论文对橡胶颗粒沥青混合料的级配组成设计方法进行了研究,提出采用体积设计法进行混合料级配组成设计并验证了其可行性;对橡胶颗粒适宜性进行了研究,混合料的体积特性及路用性能试验结果表明,橡胶颗粒宜优先选用30目,且推荐掺量为3%;针对橡胶颗粒易脱粒的问题,掺加多种添加剂进行抗剥落性研究,结果表明石灰效果最好,且最优添加剂量为1.2%;对路用性能进行了研究,研究结果表明,橡胶颗粒沥青混合料在满足水稳定性和力学性能的基础上,具有更好的高温稳定性和低温抗裂性;采用破冰仪进行了路面破冰性能试验,结果表明橡胶颗粒的存在使沥青混合料路面具有了破冰的效果,且与橡胶颗粒粒径、掺量、环境温度、冰层厚度有关。
Winter snowfall makes road pavement appeared snow icy phenomenon seriously, which not only affects the traffic safety, but also affects the traffic capacity of the road transport efficiency, brought serious influence and road safety and economic development of our country. At present, the commonly used method of breaking the ice on the road is to spread deicing salt, deicing salt is not only corrosive but also can cause environmental pollution. Other methods, the manual removal method has low efficiency and high cost; high cost of heating method for melting ice and snow, and technology is not mature.
Therefore, from the point of this mixture itself, to find a scientific and effective, energy-saving environmentally friendly method of de-icing into a large research direction. Rubber asphalt mixture particle as a new road pavement mixed materials have this performance; just And can also solve the junked tire issues, ease China environmental pressure, conservation of resources.
In this paper, the gradation composition design method of asphalt rubber particles was studied, the design method proposed by volume of the mixture gradation design and validate its feasibility; suitability of the rubber particles were studied, determine the optimum size of rubber particles was 30 mesh when the additive amount is 3%; to direct at the problem of the rubber particles easily threshing, the study of anti-strip performance joining several additives was conducted, the results showed that the lime has the best effect, the optimal amount of additive is 1.2%; the results show that asphalt rubber particles can not only meet the basic performance of water stability and mechanical properties, but also has better high temperature stability and low temperature crack resistance; the performance of de-icing was tested, the results of tins experiment showed that the presence of rubber particles makes the asphalt pavement gets the ability of de-icing, and it is effected by rubber particle size, additive amount, ambient temperature, the thickness of ice.
引文
[1]武钟财.基于扩展卡尔曼滤波的路面附着系数估计算法研究[D].吉林:吉林大学,2007
[2]谭忆秋.雪灾中的路面除冰技术[J].交通建设与管理,2008,2(3):86-87
[3]任志伟,孔安.我国废旧轮胎的回收利用现状及前景展望[J].中国资源综合利用,2009(6):12-14
[4]王淑芬.废旧轮胎的回收与利用[J].辽宁城乡环境科技,2004,24(4):37-38
[5]杨志峰,李美江,王旭东.废旧橡胶粉在道路工程中应用的历史和现状[J].公路交通科技,2005,22(7):20-22
[6]张炳臣,刘淑敏.冬季道路除雪方式的探讨[J].山东交通科技,2004(1):76-77
[7]骆虹,罗立斌,张晶.融雪剂对环境的影响及对策[J].中国环境监测,2004,20(1):55-57
[8]武海琴.发热电缆用于路面融雪化冰的技术研究[D].北京:北京工业大学,2005
[9]唐祖全,李卓球,侯作富.导电混凝土电热除冰雪的功率分析[J].重庆建筑大学学报,2002,24(3):101-105
[10]厉永举,高一平,田保侠.日本札幌市道路抗冻结路面铺设方法[J].内蒙古公路与运输,2001(4):16-17
[11]Don J. Degroot, Wayne M. Shelbume, Michael S. Switzenbaum. Use of Recycled Materials and Recycled Products in Highway Construction. Final Report.1995:81-93
[12]Turgeon, Curtis M. The Use of sphalt-Rubber Products in Minnesota. Presented at the National Seminar on Asphalt-Rubber [J]. Kansas City,Missouri, October,1989:6-11
[13]Charles J. Glover and Richard R. Davison. High-Cure Crumb Rubber Modified Asphalt for Dense-Graded Mixes[R]. Project Summary Report 1460-S,1998:16-23
[14]Prithvi S.Kandhal.Potential of Asphalt Pavement Analyzer(APA)to Predict Rutting of Hot Mix Asphalt[J].1999 International Conference on Accelerated Pavement Testing. 1999,7:42-49
[15]Paul Croney, David Croney. The Design and Performance of Road[J]. New York:Kluwer Academic Plenum Publishers,1997:25-42
[16]Ghaly A M. Properties of Asphalt Rubberized with Waste tires Crumb. Journal of Solid Waste Technology and Management.1999,26 (1):45-50
[17]Meiarashi Seishi. Noticeable Civil Engineering Materials-Research and Development of New Low-noise Pavement Using Rubber of Waste Tire[J]. Doboku Gijutsu.1998,53 (4): 72-77
[18]State of California Department of Transportation Asphalt Rubber Usage Guide [M]. 2003
[19]Sherif Y, Christopher Y and David F. et al. Conductive Concrete Overlay for Bridge Deck Deicing:Mixing Proportioning, Optimizing and Properties. ACU Marerials Journal.2000, (97):172-181
[20]Elizabeth A. Hunt. Crumb Rubber Modified in Oregon. Final report, SPR355[R]. Salem, Oregon:Oregon Department of Transportation,2002
[21]Serji N. Amirkhanian. Utilization of Crumb Rubber in Asphalt concrete Mixtures-South Carolina, Experience. Report Draft, SC29634-0911[R]. Clemson:Department of Civil Engineering Clemson University,2001
[22]吕伟民,孙大权.沥青混合料设计手册[M].北京:人民交通出版社,2007:298-311
[23]刘晓鸿RUBBIT设计与研究[D].哈尔滨:哈尔滨建筑大学,2000
[24]张金喜.废橡胶作为弹性沥青混凝土路面材料的实验研究[J].建筑材料学,2004,7(4):397-404
[25]周纯秀.冰雪地区橡胶颗粒沥青混合料应用技术的研究[D].哈尔滨:哈尔滨工业大学,2006
[26]高明星.连续级配橡胶颗粒沥青路面降噪特性的研究[D].内蒙古:内蒙古农业大学,2008
[27]张洪伟.橡胶颗粒除冰雪沥青路面的研究[D].西安:长安大学,2009
[28]薛振华.橡胶颗粒沥青混合料除冰雪性能的研究[D].内蒙古:内蒙古农业大学,2009
[29]赵光贤.胶粉及其应用[J].特种橡胶制品,1997,18(1):38-47
[30]北京市路政局.北京市废胎胶粉沥青及混合料设计施工技术指南[S].北京:人民交通出版社,2006
[31]周纯秀,谭忆秋,徐立廷等.废旧轮胎橡胶颗粒在沥青混合料中的应用[J].合成橡胶工业,2005,28(2):81-84
[32]卢剑涛,王钊编译.橡胶粉改性沥青混合料性质研究[J].中外公路,2003,23(6):79
[33]张肖宁,郭祖辛,吴矿怀.按体积法设计沥青混合料[J].哈尔滨建筑大学学报,1995(4):28-36
[34]梁众,郭有仪,王众.橡胶低温冲击断裂机理研究[J].低温工程,2002(6):30-32
[35]梁众,郭有仪,丁平.橡胶单颗粒低温冲击破碎的实验研究[J].低温工程,2002(5):37
[36]蔡之锐,孙柏涛,郭世荣.冰荷载的试验研究与计算方法[J].地震工程与工程振动,1997:49-52
[37]李锋,岳前进.冰在斜面结构上的纵横弯曲破坏分析[J].水利学报,2000(3):44-47
[38]李洪升,杜小振.冰体材料损伤与断裂破坏的本构理论[J].冰川冻土,2003(9):304-307
[39]王羽.冰的韧脆转变行为研究及其工程应用[D].大连:大连理工大学,2008
[40]马维林.雪剪切变形与断裂实验研究[J].干旱区地理,1995,18(4):73-81
[41]杨新辉.脆性/韧性断裂机理与判据及裂尖变形理论研究[D].大连:大连理工大学,2005
[42]彭旭东,孟祥凯,卢荡等.冰雪路面汽车轮胎摩擦特性研究进展[J].摩擦学学报.2003,23(5):451-455