含沥青路面再生骨料的自密实混凝土损伤本构关系

硅酸盐通报 ›› 2022, Vol. 41 ›› Issue (2): 469-478.

含沥青路面再生骨料的自密实混凝土损伤本构关系

刘赫¹, 段广超¹, 张景怡², 杨彦海¹, 张怀志¹

1.沈阳建筑大学交通工程学院,沈阳 110168;
2.沈阳城市建设学院土木工程系,沈阳 110167

收稿日期:2021-10-25 修回日期:2021-12-14 出版日期:2022-02-15 发布日期:2022-03-01
通讯作者: 杨彦海,博士,教授。E-mail:yangyanhai168@126.com
作者简介:刘赫(1987—),男,博士,讲师。主要从事先进水泥基材料研究。E-mail:heliu@sjzu.edu.cn
基金资助:
辽宁省博士启动项目(2021-BS-166);辽宁省教育厅项目(lnqn202017)

Damage Constitutive Relationship of Self-Compacting Concrete with Reclaimed Asphalt Pavement

LIU He¹, DUAN Guangchao¹, ZHANG Jingyi², YANG Yanhai¹, ZHANG Huaizhi¹

1. School of Transportation Engineering, Shenyang Jianzhu University, Shenyang 110168, China;
2. Department of Civil Engineering, Shenyang Urban Construction University, Shenyang 110167, China

Received:2021-10-25 Revised:2021-12-14 Online:2022-02-15 Published:2022-03-01

摘要/Abstract

摘要： 为了研究沥青路面再生骨料(RAP)掺量对RAP自密实混凝土(SCC)力学性能的影响,采用单轴压缩方法研究RAP掺量为0%、30%、60%、90%和100%(质量分数)的自密实混凝土的应力-应变关系和韧性指数。基于应变等价假说和统计损伤理论建立单轴压缩本构关系模型,探讨了RAP掺量与损伤变量和损伤速率之间的关系。结果表明,随着RAP掺量的增加,试件峰值应力和弹性模量下降,峰值应变和韧性指数增加,所建立的损伤本构关系可以较好地描述不同RAP掺量下自密实混凝土的应力-应变关系。在应变小于0.002时,掺入RAP的自密实混凝土损伤变量值大于基准自密实混凝土,且随着RAP掺量的增大其损伤值越大;当应变大于0.002时,掺入RAP自密实混凝土的损伤变量值低于基准自密实混凝土,且随RAP掺量增大不断减小。随着RAP掺量增大,RAP自密实混凝土损伤速率不断下降,且损伤速率呈先增大后减小的趋势。

关键词: 沥青路面再生骨料, 自密实混凝土, 应力-应变, 本构关系, 损伤变量, 扫描电镜

Abstract: In order to study the effect of reclaimed asphalt pavement (RAP) content on the mechanical properties of self-compacting concrete (SCC), SCC samples with RAP content of 0%, 30%, 60%, 90%, and 100% by weight replacement were prepared. Stress-strain relationship and toughness index of samples were studied by uniaxial compression test. The uniaxial compression damage constitutive model based on the strain equivalence hypothesis and statistical damage theory was established. Damage variable and damage variable development rate of samples with different RAP content were studied. The results show that compared with SCC, with the increase of RAP content, the peak stress and elastic modulus decrease and the peak strain and toughness index increase. The constitutive damage model describes the stress-strain relationship of SCC with different RAP content effectively. When the strain is less than 0.002, the damage variable value of SCC samples with RAP is larger than control SCC sample and the damage variable value of samples increases with the increase of RAP content. When the strain is larger than 0.002, the damage variable value of SCC samples with RAP is less than control SCC sample, and decreases with the increase of RAP content. With the increase of RAP content, the damage variable development rate of RAP self-compacting concrete decreases continuously and the damage rate shows a trend of increase first and then decrease.

Key words: reclaimed asphalt pavement, self-compacting concrete, stress-strain, constitutive relationship, damage variable, scanning electron microscope

中图分类号:

TU528

刘赫, 段广超, 张景怡, 杨彦海, 张怀志. 含沥青路面再生骨料的自密实混凝土损伤本构关系[J]. 硅酸盐通报, 2022, 41(2): 469-478.

LIU He, DUAN Guangchao, ZHANG Jingyi, YANG Yanhai, ZHANG Huaizhi. Damage Constitutive Relationship of Self-Compacting Concrete with Reclaimed Asphalt Pavement[J]. BULLETIN OF THE CHINESE CERAMIC SOCIETY, 2022, 41(2): 469-478.

参考文献

[1] HUANG B S, SHU X, LI G Q. Laboratory investigation of Portland cement concrete containing recycled asphalt pavements[J]. Cement and Concrete Research, 2005, 35(10): 2008-2013.
[2] BRAND A S, ROESLER J R. Ternary concrete with fractionated reclaimed asphalt pavement[J]. ACI Materials Journal, 2015, 112(1): 155-164.
[3] 陈玉,刘艳军,苏育民,等.沥青路面骨料再生混凝土的力学性能研究[J].新型建筑材料,2014,41(12):38-42.
CHEN Y, LIU Y J, SU Y M, et al. A study on the mechanical properties of reclaimed asphalt aggregate concrete[J]. New Building Materials, 2014, 41(12): 38-42 (in Chinese).
[4] FAKHRI M, AMOOSOLTANI E. The effect of reclaimed asphalt pavement and crumb rubber on mechanical properties of roller compacted concrete pavement[J]. Construction and Building Materials, 2017, 137: 470-484.
[5] DEBBARMA S, SINGH S, G D R R N. Laboratory investigation on the fresh, mechanical, and durability properties of roller compacted concrete pavement containing reclaimed asphalt pavement aggregates[J]. Transportation Research Record: Journal of the Transportation Research Board, 2019, 2673(10): 652-662.
[6] DEBBARMA S, RANSINCHUNG R N G D, SINGH S. Feasibility of roller compacted concrete pavement containing different fractions of reclaimed asphalt pavement[J]. Construction and Building Materials, 2019, 199: 508-525.
[7] SINGH S, RANSINCHUNG R N G D, DEBBARMA S, et al. Utilization of reclaimed asphalt pavement aggregates containing waste from sugarcane mill for production of concrete mixes[J]. Journal of Cleaner Production, 2018, 174: 42-52.
[8] 曲钦岳,张丽娟,付长春.掺废旧沥青混合料的自密实混凝土性能研究[J].路基工程,2017(2):118-121+134.
QU Q Y, ZHANG L J, FU C C. Research on properties of self-compacting concrete containing reclaimed asphalt mixture[J]. Subgrade Engineering, 2017(2): 118-121+134 (in Chinese).
[9] IBRAHIM A, MAHMOUD E, KHODAIR Y, et al. Fresh, mechanical, and durability characteristics of self-consolidating concrete incorporating recycled asphalt pavements[J]. Journal of Materials in Civil Engineering, 2014, 26(4): 668-675.
[10] KHODAIR Y, RAZA M. Sustainable self-consolidating concrete using recycled asphalt pavement and high volume of supplementary cementitious materials[J]. Construction and Building Materials, 2017, 131: 245-253.
[11] KHODAIR Y, LUQMAN. Self-compacting concrete using recycled asphalt pavement and recycled concrete aggregate[J]. Journal of Building Engineering, 2017, 12: 282-287.
[12] KHALOO A R, DEHESTANI M, RAHMATABADI P. Mechanical properties of concrete containing a high volume of tire-rubber particles[J]. Waste Management, 2008, 28(12): 2472-2482.
[13] ASLANI F. Mechanical properties of waste tire rubber concrete[J]. Journal of Materials in Civil Engineering, 2016, 28(3): 04015152.
[14] LEMAITRE L. How to use damage mechanics[J]. Nuclear Engineering and Design, 1984, 80(2): 233-245.
[15] 傅强,谢友均,龙广成,等.橡胶集料自密实混凝土的统计损伤本构关系[J].四川大学学报(工程科学版),2014,46(4):53-60.
FU Q, XIE Y J, LONG G C, et al. Statistical damage constitutive relation of rubberized self-compacting concrete[J]. Journal of Sichuan University (Engineering Science Edition), 2014, 46(4): 53-60 (in Chinese).
[16] HOSSINEY N, TIA M, BERGIN M J. Concrete containing RAP for use in concrete pavement[J]. International Journal of Pavement Research and Technology, 2010, 3(5): 251-258.
[17] EL EUCH BEN SAID S, EL EUCH KHAY S, LOULIZI A. Experimental investigation of PCC incorporating RAP[J]. International Journal of Concrete Structures and Materials, 2018, 12(1): 1-11.
[18] SETTARI C, DEBIEB F, KADRI E H, et al. Assessing the effects of recycled asphalt pavement materials on the performance of roller compacted concrete[J]. Construction and Building Materials, 2015, 101: 617-621.
[19] 董江涛.对掺入回收沥青路面的水泥混凝土特性的试验研究[J].中外公路,2007(2):128-131.
DONG J T. Experimental study on properties of portland cement concrete containing recycled asphalt pavements[J]. Journal of China and Foreign Highway, 2007(2): 128-131 (in Chinese).
[20] BRAND A S, ROESLER J R. Bonding in cementitious materials with asphalt-coated particles: part Ⅱ-Cement-asphalt chemical interactions[J]. Construction and Building Materials, 2017, 130: 182-192.