Damage Characteristics and Constitutive Model of Geopolymer Recycled Concrete under Uniaxial Compression

Abstract

Abstract: The collaborative and efficient disposal of construction solid waste and industrial solid waste is of great significance to the comprehensive utilization of solid waste. In this paper, CT scanning technology and digital volume correlation method were used to analyze the damage evolution characteristics of geopolymer recycled concrete under uniaxial compression, so as to establish the damage constitutive model of geopolymer recycled concrete under uniaxial compression. The results show that the main reason for the failure of geopolymer recycled concrete is the generation of non-uniform strain field. The damage parameter and strain present a quintic function relationship considering the numerical and spatial characteristics. The damage constitutive model based on the strain equivalence principle can better characterize the stress-strain relationship under load. This research can provide theoretical basis and technical support for the application of geopolymer recycled concrete in engineering, and provide a new method for the study of mechanical damage of recycled concrete.

Key words: geopolymer recycled concrete, CT scanning, digital volume correlation method, damage parameter, damage characteristic, constitutive model

CLC Number:

TU528

ZHANG Yichao, CHEN Xingyi, CHEN Xusheng, ZHOU Jinghai, WANG Fei, WANG Qinghe. Damage Characteristics and Constitutive Model of Geopolymer Recycled Concrete under Uniaxial Compression[J]. BULLETIN OF THE CHINESE CERAMIC SOCIETY, 2022, 41(10): 3608-3614.

References

[1] KISKU N, JOSHI H, ANSARI M, et al. A critical review and assessment for usage of recycled aggregate as sustainable construction material[J]. Construction and Building Materials, 2017, 131: 721-740.
[2] 肖建庄,李佳彬,兰阳.再生混凝土技术研究最新进展与评述[J].混凝土,2003(10):17-20+57.
XIAO J Z, LI J B, LAN Y. Research on recycled aggregate concrete: a review[J]. Concrete, 2003(10): 17-20+57 (in Chinese).
[3] 王翀昊.矿渣-粉煤灰基地质聚合物再生混凝土轴压性能试验研究[D].广州:广东工业大学,2018.
WANG C H. Experimental study on axial compressive properties of SF-GRAC[D]. Guangzhou: Guangdong University of Technology, 2018 (in Chinese).
[4] SHI X S, COLLINS F G, ZHAO X L, et al. Mechanical properties and microstructure analysis of fly ash geopolymeric recycled concrete[J]. Journal of Hazardous Materials, 2012, 237/238: 20-29.
[5] XIE J H, WANG J J, ZHANG B X, et al. Physicochemical properties of alkali activated GGBS and fly ash geopolymeric recycled concrete[J]. Construction and Building Materials, 2019, 204: 384-398.
[6] XIE J H, WANG J J, RAO R, et al. Effects of combined usage of GGBS and fly ash on workability and mechanical properties of alkali activated geopolymer concrete with recycled aggregate[J]. Composites Part B: Engineering, 2019, 164: 179-190.
[7] HUANG Y J, HE X J, SUN H S, et al. Effects of coral, recycled and natural coarse aggregates on the mechanical properties of concrete[J]. Construction and Building Materials, 2018, 192: 330-347.
[8] LI T, XIAO J Z, ZHANG Y M, et al. Fracture behavior of recycled aggregate concrete under three-point bending[J]. Cement and Concrete Composites, 2019, 104: 103353.
[9] XU F, WANG S L, LI T, et al. The mechanical properties of tailing recycled aggregate concrete and its resistance to the coupled deterioration of sulfate attack and wetting-drying cycles[J]. Structures, 2020, 27: 2208-2216.
[10] XU F, WANG S L, LI T, et al. The mechanical properties and resistance against the coupled deterioration of sulfate attack and freeze-thaw cycles of tailing recycled aggregate concrete[J]. Construction and Building Materials, 2021, 269: 121273.
[11] PLIYA P, HAJILOO H, ROMAGNOSI S, et al. The compressive behaviour of natural and recycled aggregate concrete during and after exposure to elevated temperatures[J]. Journal of Building Engineering, 2021, 38: 102214.
[12] 商效瑀,杨经纬,李江山.基于CT图像的再生混凝土细观破坏裂纹分形特征[J].复合材料学报,2020,37(7):1774-1784.
SHANG X Y, YANG J W, LI J S. Fractal characteristics of meso-failure crack in recycled coarse aggregate concrete based on CT image[J]. Acta Materiae Compositae Sinica, 2020, 37(7): 1774-1784 (in Chinese).
[13] 韩燕华,谢作为,刘方,等.基于CT图像的再生混凝土内部微变形演化分析[J].华南理工大学学报(自然科学版),2019,47(5):73-80.
HAN Y H, XIE Z W, LIU F, et al. Internal micro-deformation analysis of recycled aggregate concrete based on CT images[J]. Journal of South China University of Technology (Natural Science Edition), 2019, 47(5): 73-80 (in Chinese).
[14] 潘兵,王博.数字体图像相关方法研究进展[J].科学通报,2017,62(16):1671-1681.
PAN B, WANG B. Research progress in digital volume correlation method[J]. Chinese Science Bulletin, 2017, 62(16): 1671-1681 (in Chinese).
[15] 周静海,张晚来,刘丹.废弃纤维再生混凝土损伤分析[J].混凝土,2014(4):40-43.
ZHOU J H, ZHANG W L, LIU D. Damage analysis of waste fiber recycled concrete[J]. Concrete, 2014(4): 40-43 (in Chinese).
[16] 张婷,黄炜,戎翀.聚丙烯纤维再生混凝土损伤本构模型的研究[J].材料导报,2015,29(22):150-155.
ZHANG T, HUANG W, RONG C. Damage constitutive models of polypropylene fiber recycled concrete[J]. Materials Review, 2015, 29(22): 150-155 (in Chinese).
[17] 李斌,黄炜,李昌宁,等.钢纤维再生砖骨料混凝土损伤本构模型研究[J].华中科技大学学报(自然科学版),2017,45(1):17-23.
LI B, HUANG W, LI C N, et al. Study on damage constitutive model of steel fiber recycled brick aggregate concrete[J]. Journal of Huazhong University of Science and Technology (Natural Science Edition), 2017, 45(1): 17-23 (in Chinese).
[18] 马昆林,黄新宇,胡明文,等.砖混再生粗骨料混凝土损伤本构关系[J].建筑材料学报,2022,25(2):131-141.
MA K L, HUANG X Y, HU M W, et al. Damage constitutive model of brick-concrete recycled coarse aggregates concrete[J]. Journal of Building Materials, 2022, 25(2): 131-141 (in Chinese).
[19] 姜鲁,刘元珍,王文婧.再生保温混凝土单轴受压随机损伤本构关系研究[J].太原理工大学学报,2016,47(5):628-633.
JIANG L, LIU Y Z, WANG W J. Study on stochastic damage constitutive law of recycled aggregate thermal insulation concrete under uniaxial compression[J]. Journal of Taiyuan University of Technology, 2016, 47(5): 628-633 (in Chinese).
[20] 王石,赵宪锋,米弘泽.基于CT技术的冷再生混合料冻融环境下损伤分析[J].复合材料学报,2022,39(4):1692-1700.
WANG S, ZHAO X F, MI H Z. Damage analysis of cold recycled mixture under freeze-thaw environment based on CT technology[J]. Acta Materiae Compositae Sinica, 2022, 39(4): 1692-1700 (in Chinese).
[21] 杨小彬,丁元伟,秦跃平,等.煤岩非线性损伤试验及理论模型[J].辽宁工程技术大学学报(自然科学版),2009,28(6):884-887.
YANG X B, DING Y W, QIN Y P, et al. Experimental and theoretical study on nonlinear damage model of coal and rock[J]. Journal of Liaoning Technical University (Natural Science), 2009, 28(6): 884-887 (in Chinese).
[22] 秦跃平.岩石损伤力学模型及其本构方程的探讨[J].岩石力学与工程学报,2001,20(4):560-562.
QIN Y P. Discussion on rock damage mechanics model and its constitutive equation[J]. Chinese Journal of Rock Mechanics and Engineering, 2001, 20(4): 560-562 (in Chinese).