Research on Visco-Elastoplastic Constitutive Model for AC-13 Graded Asphalt Mixture with Steel Slag

Abstract

Abstract: Based on the coupling of Schapery viscoelastic model and modified Swchartz viscoplastic model, an integral constitutive model was proposed to study the characterization of nonlinear visco-elastoplastic deformation of asphalt mixture with steel slag. The specimens of AC-13 gradation were fabricated, while the limestone coarse aggregate sizes larger than 2.36 mm were replaced by steel slag. A series of uniaxial compressive creep tests were designed and conducted. The elastic, viscoelastic and viscoplastic strains under different stresses were decomposed from multiple-stress repeated creep-recovery test. And then the parameters in the model were fitted and determined. The capability of the constitutive models was verified by the creep recovery tests under 0.4 MPa and 1.0 MPa. The result shows that the proposed model not only accurately describes the deformation of elastic, viscoelastic and viscoplastic behavior of steel slag asphalt mixture during the creep recovery behaviour, but also be able to predict the creep recovery deformation rule of asphalt mixture with steel slag with different stress levels.

Key words: asphalt mixture with steel slag, AC-13, constitutive model, viscoelastic, viscoplastic

CLC Number:

U414

ZENG Guowei, LIU Haoxuan, BAI Fan, WU Liang, ZHOU Peng. Research on Visco-Elastoplastic Constitutive Model for AC-13 Graded Asphalt Mixture with Steel Slag[J]. BULLETIN OF THE CHINESE CERAMIC SOCIETY, 2020, 39(12): 4061-4067.

References

[1] 张丰,莫立武,邓敏.碳化养护对钢渣混凝土强度和体积稳定性的影响[J].硅酸盐学报,2016,44(5):640-646.
[2] Hassan Z, Khabiri M M. Preventive maintenance of flexible pavement and mechanical properties of steel slag asphalt[J]. Journal of Environmental Engineering and Landscape Management, 2007, 15(3): 188-192.
[3] Xue Y J, Wu S P, Hou H B, et al. Experimental investigation of basic oxygen furnace slag used as aggregate in asphalt mixture[J]. Journal of Hazardous Materials, 2006, 138(2): 261-268.
[4] 李灿华,陈琳,刘思.钢渣沥青混凝土路面及其服役性能研究[J].安徽工业大学学报,2011,28(2):136-140.
[5] 李建华.钢渣沥青混凝土路用性能研究[J].城市道桥与防洪,2015,5:163-195.
[6] Mahmoud A, Saeid H, Hadi G. Laboratory evaluation of warm mix asphalt mixtures containing electric arc furnace (EAF) steel slag[J]. Construction and Building Materials, 2013, 49: 611-617.
[7] Wu S P, Xue Y J, Ye Q S, et al. Utilization of steel slag as aggregates for stone mastic asphalt (SMA) mixtures[J]. Building and Environment, 2007, 42(7): 2580-2585.
[8] 李灿华,向晓东,吴少鹏,等.沥青稳定钢渣混合料性能研究[J].路基工程,2013(6):109-111.
[9] 谢君.钢渣沥青混凝土的制备、性能与应用研究[D].武汉:武汉理工大学,2013:152-153.
[10] 张强,胡力群,刘兴成.多掺量钢渣开级配沥青混合料性能研究[J].硅酸盐通报,2020,39(2):493-500.
[11] 申爱琴,陈祥,郭寅川,等.基于灰靶决策理论的钢渣沥青混合料路用性能评价[J].硅酸盐通报,2019,38(4):1245-1252
[12] Lu Y, Lu L, Wright P J. Visco-elastoplastic method for pavement performance evaluation[J]. Transportation, 2002, 153(4): 227-234.
[13] 张丽娟,张肖宁,陈页开.沥青混合料变形的粘弹塑性本构模型研究[J].武汉理工大学学报(交通科学与工程版),2011,35(2):289-292.
[14] 易军艳,Shen S H,Muhunthan B,等.多孔沥青混合料粘弹塑性损伤模型[J].哈尔滨工业大学学报,2014,46(2):66-71.
[15] 王芝银,李云鹏.岩体流变理论及其数值模拟[M].北京:科学出版社,2008:28-31.
[16] Ye Y, Yang X H, Chen C Y. Viscoelastoplastic constitutive model for creep deformation behavior of asphalt sand[J]. Journal of Central South University, 2008, 15(s1): 13-16.
[17] Ye Y, Yang X H, Chen C Y. Experimental researches on viscoelastoplastic constitutive model of asphalt mastic[J]. Construction and Building Materials, 2009, 23(10): 3161-3165.
[18] Lu Y, Wright P J. Numerical approach of viscoelastoplastic analysis for asphalt mixtures [J]. Computers and Structures, 1998, 69(2): 139-147.
[19] 杨新华,白凡,叶永,等.沥青混合料力学[M].北京:科学出版社,2016:15-42.
[20] Bai F, Yang X H, Zeng G W. Creep and recovery behavior characterization of asphalt mixture in compression[J]. Construction and Building Materials, 2014, 54: 504-511.