钢渣沥青混合料薄层罩面层间剪切性能研究

硅酸盐通报 ›› 2021, Vol. 40 ›› Issue (12): 4197-4208.

钢渣沥青混合料薄层罩面层间剪切性能研究

罗程¹, 颜峰¹, 夏海廷^1,2, 卢开宇¹, 周彬³, 冯明杰¹

1.昆明理工大学建筑工程学院,云南省土木工程防灾重点实验室,昆明 650500;
2.昆明理工大学民航与航空学院,昆明 650500;
3.云南省公路科学技术研究院,昆明 650500

出版日期:2021-12-15 发布日期:2022-01-07
通讯作者: 颜峰,副教授。E-mail:1057177365@qq.com
作者简介:罗程(1996—),男,硕士研究生。主要从事道路材料方向研究。E-mail:1219928227@qq.com
基金资助:
国家自然科学基金(11962009);昆明理工大学分析测试基金(2019M20182210087)

Interlayer Shear Performance of Steel SlagAsphalt Mixture Thin Overlay

LUO Cheng¹, YAN Feng¹, XIA Haiting^1,2, LU Kaiyu¹, ZHOU Bin³, FENG Mingjie¹

1. Yunnan Key Laboratory of Disaster Reduction in Civil Engineering, Faculty of Civil Engineering, Kunming University of Scienceand Technology, Kunming 650500, China;
2. Faculty of Civil Aviation and Aeronautics, Kunming University of Science and Technology, Kunming 650500, China;
3. Yunnan Provincial Highway Science and Technology Research Institute, Kunming 650500, China

Online:2021-12-15 Published:2022-01-07

摘要/Abstract

摘要： 为了探究钢渣沥青混合料薄层罩面层间剪切破坏机理,设计一种间断级配钢渣沥青混合料和两种构造深度的表面层,研究表面层构造深度、温度、SBR改性乳化沥青用量和应力比对钢渣薄层罩面层间剪切性能的影响。通过马歇尔稳定度试验、冻融劈裂试验和动稳定度试验评价薄层罩面及表面层沥青混合料的基本路用性能,直剪试验和剪切疲劳试验评价薄层罩面层间抗剪切性能。研究结果表明:钢渣集料的压碎值和磨耗值明显低于石灰岩集料,且与沥青的粘附性好,使得钢渣沥青混合料的路用性能优异;层间抗剪强度主要受温度控制,在相同测试温度下,随着黏结材料用量增加,表面层与薄层罩面的层间接触状态得到改善,从而提高了抗剪强度,但过量的黏结材料在表面层与薄层罩面之间形成滑动层,导致构造深度对层间剪切强度的作用减弱;薄层罩面的层间剪切疲劳寿命随应力比的升高而降低,通过剪切疲劳试验得到了疲劳寿命方程。

关键词: 钢渣沥青混合料, 薄层罩面, 路面养护, 构造深度, SBR改性乳化沥青用量, 抗剪强度, 层间剪切疲劳

Abstract: In order to explore the shear failure mechanism between thin overlay of steel slag asphalt mixture, a gap graded steel slag thin asphalt overlay and dense graded surface layers with different texture depth were designed. The effects of texture depth, temperature, styrene-butadiene rubber modified emulsified asphalt dosage and stress ratio on shear performance between thin layers of steel slag were studied. Marshall stability test, freeze-thaw splitting test and dynamic stability test were used to evaluate the road performance of asphalt mixture. Direct shear test and shear fatigue test were used to evaluate the interlayer shear performance between thin overlay and surface layers. The results show that the crushing value and abrasion of steel slag aggregate are obviously lower than those of limestone aggregate, and the adhesion of steel slag/asphalt is much better than that of limestone/asphalt, which makes the pavement performance of steel slag asphalt mixture excellent. Interlayer shear strength is mainly controlled by test temperature. At the same temperature, the interlayer contact state between the surface layer and the thin overlay is improved with increase of tack coat application rate, the shear strength is improved. However, excessive tack coat forms slip layer between the surface layer and the thin overlay, which weakened the influence of the texture depth on interlayer shear strength. Through shear fatigue test, the shear fatigue life of thin overlay decreases with the increase of stress ratio. The fatigue life equation is obtained by shear fatigue test.

Key words: steel slag asphalt mixture, thin overlay, road maintenance, texture depth, SBR modified emulsified asphalt dosage, shear strength, interlaminar shear fatigue

中图分类号:

U416.25

罗程, 颜峰, 夏海廷, 卢开宇, 周彬, 冯明杰. 钢渣沥青混合料薄层罩面层间剪切性能研究[J]. 硅酸盐通报, 2021, 40(12): 4197-4208.

LUO Cheng, YAN Feng, XIA Haiting, LU Kaiyu, ZHOU Bin, FENG Mingjie. Interlayer Shear Performance of Steel SlagAsphalt Mixture Thin Overlay[J]. BULLETIN OF THE CHINESE CERAMIC SOCIETY, 2021, 40(12): 4197-4208.

参考文献

[1] 刘朝晖,张景怡,周婷,等.路面粘层复合改性沥青材料研发与性能评价[J].材料导报,2014,28(4):134-139.
LIU Z H, ZHANG J Y, ZHOU T, et al. Development and performance evaluation of composite modified asphalt material for tack coat[J]. Materials Review, 2014, 28(4): 134-139 (in Chinese).
[2] 施彦,凌天清,崔立龙,等.沥青路面预防性养护评价标准及决策优化研究[J].公路交通科技,2020,37(10):25-34+56.
SHI Y, LING T Q, CUI L L, et al. Study on evaluation standard for asphalt pavement preventive maintenance and decision-making optimization[J]. Journal of Highway and Transportation Research and Development, 2020, 37(10): 25-34+56 (in Chinese).
[3] 宋琦,邢德华.沥青混凝土路面预防性养护技术研究[J].公路,2013,58(1):260-265.
SONG Q, XING D H. Research on preventive maintenance technology of asphalt concrete pavement[J]. Highway, 2013, 58(1): 260-265 (in Chinese).
[4] 贾晓东,梁乃兴,赵毅,等.水-温-荷载耦合作用下沥青路面疲劳寿命预估[J].公路,2019,64(11):192-198.
JIA X D, LIANG N X, ZHAO Y, et al. Prediction on fatigue life of asphalt pavement under water-temperature-load coupling[J]. Highway, 2019, 64(11): 192-198 (in Chinese).
[5] 王选仓,孙耀宁,王文强,等.粘层材料剪切疲劳特性及层间设计方法研究[J].材料导报,2018,32(16):2750-2756+2767.
WANG X C, SUN Y N, WANG W Q, et al. Study on shear fatigue performance of tack coat materials and interlayer design method[J]. Materials Review, 2018, 32(16): 2750-2756+2767 (in Chinese).
[6] 张娟.水泥混凝土桥面防水粘结层剪切疲劳性能研究[J].中外公路,2012,32(1):254-256.
ZHANG J. Study on Shear fatigue performance of waterproof adhesive layer of cement concrete bridge deck[J]. Journal of China & Foreign Highway, 2012, 32(1): 254-256 (in Chinese).
[7] YANG K, LI R, YU Y, et al. Evaluation of interlayer stability in asphalt pavements based on shear fatigue property[J]. Construction and Building Materials, 2020, 258: 119628.
[8] CHO S H, KIM Y R. Verification of time-temperature superposition principle for shear bond failure of interlayers in asphalt pavements[J]. Transportation Research Record: Journal of the Transportation Research Board, 2016, 2590(1): 18-27.
[9] TOZZO C, FIORE N, D’ANDREA A. Dynamic shear tests for the evaluation of the effect of the normal load on the interface fatigue resistance[J]. Construction and Building Materials, 2014, 61: 200-205.
[10] 向晓东,习嘉晨,李灿华.钢渣AC-10C型改性沥青混合料配合比及性能[J].兰州理工大学学报,2016,42(6):142-146.
XIANG X D, XI J C, LI C H. Mixture ratio and performance of mixture of steel slag with AC-10C-type modified asphalt[J]. Journal of Lanzhou University of Technology, 2016, 42(6): 142-146 (in Chinese).
[11] 牟存玉,凌天清,陆亚,等.钢渣SAC-10沥青混合料路用性能研究[J].中外公路,2019,39(2):249-255.
MOU C Y, LING T Q, LU Y, et al. Study on road performance of steel slag SAC-10 asphalt mixture[J]. Journal of China & Foreign Highway, 2019, 39(2): 249-255 (in Chinese).
[12] NEWCOMB D E. Thin asphalt overlays for pavement preservation[J]. National Asphalt Pavement Association, 2009, 74-79.
[13] AASHTO. Standard method of test for determining the interlayer shear strength (ISS) of asphalt pavement layers (AASHTO TP 114-15)[S]. Washington, D.C., 2015: 7.
[14] 黎霞,刘金凤,曾璐璐.温拌橡胶沥青混合料双面剪切疲劳试验研究[J].中外公路,2017,37(6):267-270.
LI X, LIU J F, ZENG L L. Experimental study on double-side shear fatigue of warm-mixed rubber asphalt mixture[J]. Journal of China & Foreign Highway, 2017, 37(6): 267-270 (in Chinese).
[15] 李盛,刘朝晖,李宇峙,等.刚柔复合式路面层间界面剪切疲劳试验研究[J].土木工程学报,2013,46(7):151-156.
LI S, LIU Z H, LI Y Z, et al. Experimental study on interlaminar shear fatigue of rigid-flexible composite pavement[J]. China Civil Engineering Journal, 2013, 46(7): 151-156 (in Chinese).
[16] 黄余阳阳.沥青路面层间粘结性能影响因素研究[D].西安:长安大学,2013.
HUANG Y Y Y. Influence factors of bonding properties between asphalt pavement layers[D]. Xi’an: Chang’an University, 2013 (in Chinese).
[17] RAPOSEIRAS A C, CASTRO-FRESNO D, VEGA-ZAMANILLO A, et al. Test methods and influential factors for analysis of bonding between bituminous pavement layers[J]. Construction and Building Materials, 2013, 43: 372-381.
[18] 张秋福.超薄路面层间抗剪强度研究[D].重庆:重庆交通大学,2016.
ZHANG Q F. Research on the interlayer of ltrathin asphalt pavement shear strength[D]. Chongqing: Chongqing Jiaotong University, 2016 (in Chinese).
[19] 郑洁.沥青路面层间剪切疲劳性能研究[D].重庆:重庆交通大学,2015.
ZHENG J. Research on interlaminar shear fatigue performance of pavement asphalt mixtures[D]. Chongqing: Chongqing Jiaotong University, 2015 (in Chinese).