回收橡胶树脂改性沥青混合料高温性能及微观分析

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英文篇名：High Temperature Performance and Microscopic Analysis of Asphalt Mixture Modified by Recycled Rubber Resin 作者：李宁 ; 申爱琴 ; 周彬 ; 马俊 英文作者：LI Ning;SHEN Ai-qin;ZHOU Bin;MA Jun;Highway college,Chang'an University;Yunnan Research Institute of Highway Science and Technology Kunming; 关键词：回收橡胶树脂 ; 沥青混合料 ; 高温性能 ; 改性机理 英文关键词：recycled rubber resin;;asphalt mixture;;high temperature performance;;modification mechanism 中文刊名：硅酸盐通报 英文刊名：Bulletin of the Chinese Ceramic Society 机构：长安大学公路学院;云南省公路科学技术研究院; 出版日期：2019-09-15 出版单位：硅酸盐通报 年：2019 期：09 语种：中文; 页：215-224 页数：10 CN：11-5440/TQ ISSN：1001-1625 分类号：U414

摘要

为利用回收橡胶粉与聚乙烯蜡制备回收橡胶树脂(简称"RPRS")改性沥青,制备RPRS改性沥青混合料,针对成型温度、级配类型、孔隙率、RPRS掺量、沥青用量等影响因素,借助正交试验设计方法,以单轴贯入强度和动稳定度作为评价指标,遴选出最佳制备工艺和参数。在此基础上,对其作用机理和高温性能进行分析。结果表明:RPRS改性沥青混合料的最佳级配类型为骨架密实型、最佳成型温度为145℃、最佳RPRS掺量为12%、最佳孔隙率为4%、最佳沥青用量为3. 6%;在基质沥青中掺入RPRS的沥青混合料高温性能显著提高; RPRS改性沥青具有优良的性能,其原因主要在于RPRS对基质沥青的润滑作用。
        In order to prepare recycled rubber resin(" RPRS") modified asphalt by using recycled rubber powder and polyethylene wax,prepare RPRS modified asphalt mixture for molding temperature,grading type,porosity,RPRS content,asphalt Influencing factors such as dosage,with the help of orthogonal experimental design method,the uniaxial penetration strength and dynamic stability were used as evaluation indexes,and the optimal preparation process and parameters were selected. On this basis,the mechanism of action and high temperature performance were analyzed. The results show that the optimum gradation type of RPRS modified asphalt mixture is skeleton compact type,the optimum molding temperature is 145 ℃,the optimum RPRS content is 12%,the optimum porosity is 4%,and the optimum asphalt dosage is 3. 6%; The high temperature performance of asphalt mixture with RPRS in matrix asphalt is significantly improved; RPRS modified asphalt has excellent performance,mainly due to the lubrication effect of RPRS on matrix asphalt.

引文

[1]Zhou Z G,Lei M,Chen J Y. Impact of rubber modifier on the rheological properties of asphalt[J]. Advanced Materials Research,2014,3356(997):465-470.
    [2]Liu C,Sun J,Zhang X,et al. Pressureless sintering of alumina matrix ceramic materials improved by Al-Ti-B master alloys and diopside[J].Ceramics International,2009,35(4):1327-1333.
    [3]张涛,贾春燕.不同复配方案橡胶粉与塑料颗粒复合改性沥青及其混合料耐久性试验[J].公路工程,2017(3):309-313+326.
    [4]范腾,林思能,尹应梅,等.聚氨酯和橡胶粉复合改性沥青的试验研究[J].新型建筑材料,2016(11):83-86.
    [5]韦毅,邓家喜,张争奇.隧道路面纤维橡胶粉微表处路用性能研究[J].中外公路,2017(S1):68-72.
    [6]张大斌,唐清文,张胜芬.橡胶沥青SMA应用技术研究[J].中外公路,2017(S1):77-80.
    [7]张娟.多孔橡胶改性沥青混合料吸声特性与应用研究[J].水利与建筑工程学报,2017(3):209-213.
    [8]连静,陈喜平.基于橡胶改性沥青技术低噪声微表处混合料耐久性试验研究[J].公路,2017(4):269-275.
    [9]唐勇.聚乙烯废塑料温和可控降解为燃油和聚乙烯蜡[J].高分子学报,2017(1):1-2.
    [10]Akisetty C K,Lee S,Amirkhanian S N. High temperature properties of rubberized binders containing warm asphalt additives[J]. Construction&Building Materials,2009,23(1):565-573.
    [11]Nakhaei M,Darbandi Olia A D,Akbari Nasrekani A,et al. Rutting and moisture resistance evaluation of polyethylene wax-modified asphalt mixtures[J]. Petroleum Science and Technology,2016,34(17-18):1568-1573.
    [12]汤薇,杨林江.微波脱硫裂解废旧轮胎橡胶粉复合改性沥青[J].新型建筑材料,2017,44(6):119-121.
    [13]颜可珍,葛冬冬,游凌云.沥青混合料单轴贯入抗剪试验的细观分析[J].湖南大学学报(自科版),2015(5):113-119.
    [14]汪水银,郭朝阳,彭锋.废胎胶粉沥青的改性机理[J].长安大学学报(自然科学版),2010(4):34-38.
    [15]尚丽娜,李金亮,王仕峰,等.回收聚乙烯蜡降粘SBS改性沥青的探索[J].石油沥青,2010,24(1):64-69.