水泥路面改性环氧磨耗层骨料形状特征分析与评价
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摘要
目的分析水泥路面改性环氧树脂磨耗层骨料形状特征,建立评价指标体系,推荐抗剥落性最好的骨料类型.方法利用骨料图像测量系统和数字图像处理技术,对4种骨料的轮廓形状、棱角性和表面纹理等形状特征进行量化研究,建立二级评价体系,利用层次分析法计算各级指标权重,进而对4种骨料的抗剥落性进行评估.结果玄武岩、花岗岩、石灰岩和辉绿岩4种骨料的针状性相似;玄武岩和辉绿岩的圆度和球度更接近于1,对应的抗滑耐磨性能优于花岗岩和石灰岩;石灰岩的棱角度数值最高,其次是花岗岩,最后是玄武岩和辉绿岩;表面纹理指数越高,细观纹理性能越优异,凹凸的粗糙表面也就越多;计算4种骨料的骨料形状特征综合评价指标Asc值,指出玄武岩是最理想的磨耗层骨料类型,辉绿岩次之;并利用玄武岩骨料铺筑一油一石和两油两石的实体工程,半年后检测两种施工工艺的抗拉强度和剪切强度均大于1.50 MPa,满足粘结强度的要求.结论利用层次分析法计算指标权重,结合骨料形状特征综合评价指标的计算,选择水泥路面改性环氧磨耗层骨料,为工程中预防性养护的进一步发展打下理论基础.
The aggregate shape characteristics of modified epoxy wear layer for cement concrete were analyzed,the evaluation index system was established,and then the best aggregate was recommended. The shape characteristics and surface textureof four kinds of aggregate were quantita-tively studied by using aggregate image measurement system and digital image processing technology. Based on the analysis of the skid resistance and the anti-peeling property of the aggregate,the secondary evaluation system of modified epoxy wear layer of cement pavement was proposed,and the weight of the index is calculated by the analytic hierarchy process. The anti-peeling properties of four aggregates were evaluated. The results showthat the acicularity of basalts,granites,limestone and diabase are similar. The roundness and sphericity of basalt and diabase are closer to 1,and the corresponding skid resistance is better than granite and limestone. The angle value of limestone is the highest value,followed by granite,and finally basalt and diabase. The higher the surface texture index,the better the fine texture performance,the more therough surface. The aggregate shape characteristics Ascvalues of the four aggregates indicate that the basalt is the ideal type of wear layer,followed by diabase. The engineering of one oil and one stone,two oil and two stone was paved by using the basalt aggregate,after six months,both the tensile strength and shear strength are greater than 1. 50 MPa,it meets the bonding strength requirements. The weight of the index was calculated by using the analytic hierarchy process,thentheevaluationindexof aggregate shape characteristicswascalculated. The best aggregate is selected by the index for the modified epoxy wear layer for cement pavement,which can lay the theoretical basis for the prevention.
The aggregate shape characteristics of modified epoxy wear layer for cement concrete were analyzed,the evaluation index system was established,and then the best aggregate was recommended. The shape characteristics and surface textureof four kinds of aggregate were quantita-tively studied by using aggregate image measurement system and digital image processing technology. Based on the analysis of the skid resistance and the anti-peeling property of the aggregate,the secondary evaluation system of modified epoxy wear layer of cement pavement was proposed,and the weight of the index is calculated by the analytic hierarchy process. The anti-peeling properties of four aggregates were evaluated. The results showthat the acicularity of basalts,granites,limestone and diabase are similar. The roundness and sphericity of basalt and diabase are closer to 1,and the corresponding skid resistance is better than granite and limestone. The angle value of limestone is the highest value,followed by granite,and finally basalt and diabase. The higher the surface texture index,the better the fine texture performance,the more therough surface. The aggregate shape characteristics Ascvalues of the four aggregates indicate that the basalt is the ideal type of wear layer,followed by diabase. The engineering of one oil and one stone,two oil and two stone was paved by using the basalt aggregate,after six months,both the tensile strength and shear strength are greater than 1. 50 MPa,it meets the bonding strength requirements. The weight of the index was calculated by using the analytic hierarchy process,thentheevaluationindexof aggregate shape characteristicswascalculated. The best aggregate is selected by the index for the modified epoxy wear layer for cement pavement,which can lay the theoretical basis for the prevention.
引文
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[11]CHEN S,YANG X,YOU Z,et al.Innovation of aggregate angularity characterization using gradient approach based upon the traditional and modified sobel operation[J].Construction and building materials,2016(5):111-119.
[12]ANOCHIE-BOATENG J K,KOMBA J J,M VELASE G M.Three-dimensional laser scanning technique to quantify aggregate and ballast shape properties[J].Construction and building materials,2013,43(2):389-398.
[13]DONDI G,SIMONE A,VIGNALI V,et al.Discrete element modeling of influences of grain shape and angularity on performance of granular mixes for asphalts[J].Procedia social and behavioral sciences,2012,53(3):399-409.
[14]BANGARU R S,DAS A.Aggregate shape characterization in frequency domain[J].Construction and building materials,2012,34(9):554-560.
[15]COLERI E,KAYHANIAN M,HARVEY J T,et al.Clogging evaluation of open graded friction course pavements tested under rainfall and heavy vehicle simulators[J].Journal of environmental management,2013,129(15):164-172.
[16]何文华,沈峰,宗炜,等.基于层次分析法的宽幅厚层水泥稳定碎石基层原材料质量评价模型[J].公路交通科技(应用技术版),2015,11(4):35-38.(HE Wenhua,SHEN Feng,ZONG Wei,et al.Rawmaterial quality evaluation model of wide cement stabilized macadam base based on analytic hierarchy process[J].Journal of Guizhou university of finance and economics,2015,11(4):35-38.)
[17]SARIY T L.The Analytic Hierarchy Process[M].NewYork:Mc Graw-Hill,2012.
[18]杨青,罗小花,邱欣,等.基于多层次模糊综合评价的路用基层材料甄选分析[J].浙江师范大学学报(自然科学版),2016,39(1):101-107.(YANG Qing,LUO Xiaohua,QIU Xin,et al.Selection and analysis of road base material based on multi-level fuzzy comprehensive evaluation[J].Journal of Zhejiang normal university(natural science),2016,39(1):101-107.)
[19]于玲,张筱薇,包龙生,等.基于层次分析法的就地热再生沥青路面路用性能后评估[J].沈阳建筑大学学报(自然科学版),2017,33(4):654-660.(YU Ling,ZHANG Xiaowei,BAO Longsheng,et al.The asphalt post evaluation of pavement performance index of hot in-place recycling technology based on the analytic hierarchy process[J].Journal of Shenyang jianzhu university(natural science),2017,33(4):654-660.)
[20]张敏江,张博文,于保阳.基于层次分析法的沥青路面冷再生技术后评价指标权重分析[J].沈阳建筑大学学报(自然科学版),2012,28(4):634-639.(ZHANG Minjiang,ZHANG Bowen,YU Baoyang.Analysis of weighing values of postassessment indexes for cold recycling technology of asphalt pavement based on analytic hierarchy process[J].Journal of Shenyang jianzhu university(natural science),2012,28(4):634-639.)
[2]汪海年,郝培文.粗集料二维形状特征的图像描述[J].建筑材料学报,2009,12(6):747-751.(WANG Hainian,HAO Peiwen.Digital description of two-dimensional shape characteristics of coarse aggregate[J].Journal of building materials,2009,12(6):747-751.)
[3]唐伯明,郭鹏,肖巧林,等.沥青混凝土再生集料的棱角性分析[J].中国公路学报,2015,28(1):24-29.(TANG Boming,GUO Peng,XIAO Qiaolin,et al.Analysis of angularity of asphalt concrete recycled aggregate[J].China journal of highway and transport,2015,28(1):24-29.)
[4]李晓燕,卜胤,汪海年,等.粗集料形态特征的定量评价指标研究[J].建筑材料学报,2015,18(3):524-530.(LI Xiaoyan,BU Yin,WANG Hainian,et al.Research on quantitative evaluation of morphological characteristic of coarse aggregates[J].Journal of building materials,2015,18(3):524-530.)
[5]彭波.沥青混合料集料几何特性与结构研究[D].西安:长安大学,2008.(PENG Bo.Study on geometric characteristics and structure of asphalt mixture aggregate[D].Xi’an:Chang’an University,2008.)
[6]林辉.基于数字图像处理技术的粗集料形状特征量化研究[D].长沙:湖南大学,2007.(LIN Hui.Quantitative study of shape characteristics for coarse aggregate based on digital image processing[D].Changsha:Hunan University,2007.)
[7]胡力群,熊伟明,王军.粗集料棱角性对OGFC多孔沥青混合料性能的影响[J].功能材料,2014,45(20):20150-20154.(HU Liqun,XIONG Weiming,WANG Jun.Influence of coarse aggregate angularity on the performance of open-graded friction courses[J].Journal of functional materials,2014,45(20):20150-20154.)
[8]赵健,张文军.一种有效的基于小波帧变换包的纹理分类方法[J].计算机辅助设计与图形学学,1997,9(6):520-526.(ZHAO Jian,ZHANG Wenjun.An effective texture classification method based on wavelet frame transform packets[J].Journal of computer aided design&computer graphics,1997,9(6):520-526.)
[9]THYAGARAJAN K S,NGUYEN T,PERSONS C E.A maximum likelihood approach to texture classification using wavelet transform[J].In Proc.IEEE Int.Conf.on Image Processing,1994,2:640-644.
[10]秦雪.基于图像分析的集料形状特征与分布特征研究[D].青岛:青岛理工大学,2016.(QIN Xue.Research on shape characteristics and distribution characteristics of aggregate based on image analysis[D].Qingdao:Qingdao University of Technological,2016.)
[11]CHEN S,YANG X,YOU Z,et al.Innovation of aggregate angularity characterization using gradient approach based upon the traditional and modified sobel operation[J].Construction and building materials,2016(5):111-119.
[12]ANOCHIE-BOATENG J K,KOMBA J J,M VELASE G M.Three-dimensional laser scanning technique to quantify aggregate and ballast shape properties[J].Construction and building materials,2013,43(2):389-398.
[13]DONDI G,SIMONE A,VIGNALI V,et al.Discrete element modeling of influences of grain shape and angularity on performance of granular mixes for asphalts[J].Procedia social and behavioral sciences,2012,53(3):399-409.
[14]BANGARU R S,DAS A.Aggregate shape characterization in frequency domain[J].Construction and building materials,2012,34(9):554-560.
[15]COLERI E,KAYHANIAN M,HARVEY J T,et al.Clogging evaluation of open graded friction course pavements tested under rainfall and heavy vehicle simulators[J].Journal of environmental management,2013,129(15):164-172.
[16]何文华,沈峰,宗炜,等.基于层次分析法的宽幅厚层水泥稳定碎石基层原材料质量评价模型[J].公路交通科技(应用技术版),2015,11(4):35-38.(HE Wenhua,SHEN Feng,ZONG Wei,et al.Rawmaterial quality evaluation model of wide cement stabilized macadam base based on analytic hierarchy process[J].Journal of Guizhou university of finance and economics,2015,11(4):35-38.)
[17]SARIY T L.The Analytic Hierarchy Process[M].NewYork:Mc Graw-Hill,2012.
[18]杨青,罗小花,邱欣,等.基于多层次模糊综合评价的路用基层材料甄选分析[J].浙江师范大学学报(自然科学版),2016,39(1):101-107.(YANG Qing,LUO Xiaohua,QIU Xin,et al.Selection and analysis of road base material based on multi-level fuzzy comprehensive evaluation[J].Journal of Zhejiang normal university(natural science),2016,39(1):101-107.)
[19]于玲,张筱薇,包龙生,等.基于层次分析法的就地热再生沥青路面路用性能后评估[J].沈阳建筑大学学报(自然科学版),2017,33(4):654-660.(YU Ling,ZHANG Xiaowei,BAO Longsheng,et al.The asphalt post evaluation of pavement performance index of hot in-place recycling technology based on the analytic hierarchy process[J].Journal of Shenyang jianzhu university(natural science),2017,33(4):654-660.)
[20]张敏江,张博文,于保阳.基于层次分析法的沥青路面冷再生技术后评价指标权重分析[J].沈阳建筑大学学报(自然科学版),2012,28(4):634-639.(ZHANG Minjiang,ZHANG Bowen,YU Baoyang.Analysis of weighing values of postassessment indexes for cold recycling technology of asphalt pavement based on analytic hierarchy process[J].Journal of Shenyang jianzhu university(natural science),2012,28(4):634-639.)