Orthogonal Experiment Analysis on the Multiple Factors Influence of the Interfacial Bonding Performance of the Composite Concrete
WANG Jianmin1,2, XIAO Ziqiang1, FAN Yitao1, WANG Nengjun1, WANG Wanzhen1, LIU Junzhe1,3
1 School of Civil and Environmental Engineering, Ningbo University, Ningbo 315211, Zhejiang, China 2 Key Laboratory of Impact and Safety Engineering, Ministry of Education, Ningbo University, Ningbo 315211, Zhejiang, China 3 School of Architecture Engineering, Qingdao Agricultural University, Qingdao 266109, Shandong, China
Abstract: The composite concrete is made by casting different kinds of concrete on prefabricated components to form the integrated structure member. It has both advantages, convenient construction, short construction period of prefabricated structure and good entirety, seismic perfor-mance of cast-in-situ structure. In addition, the composite concrete superimposed with the normal concrete on the lightweight aggregate concrete can bring into full play the performance advantages of the two kinds of concrete materials. In this work, the orthogonal experiment on the bonding shear performance of the casting interface was designed to study the influence significance considering factors of the casting interval time, the concrete strength matching, the preparing method of the casting interface, the mixing of the steel fiber and the applying of the normal binding force. There were 40 groups of the double-sides-vertically-shearing superimposed sandwich composite concrete blocks made considering the variation of the aforementioned factors. The results indicate that the applying of the normal bin-ding force has the most significant influence on the bonding shear performance among considered factors, and the shearing strength is obviously enhanced with the increase of the normal binding force. The influence of the concrete strength matching and the preparing method of the casting interface on the bonding shear performance are in approximately same level. In the considered variation range, the increase of the concrete strength can effectively improve the shearing performance of the casting interface. Comparatively, the preparation with the interfacial retarder brushing the casting interface has more advantage than other methods of the artificial chiseling, the fly ash mortar brushing and the natural casting interface state. There is no obvious influence on the shearing performance when mixing the steel fiber into the concrete. For different preparing methods of the casting interface, the bonding shear strength clearly decreases in same varying characteristic as the casting interval time is prolonged. Comparing the preparing methods of the fly ash mortar brushing, artificial chiseling and the interfacial retarder brushing, the remaining boding shear strength is about 43.4%, 48.1% and 46.2% that of the respectively original as the casting interval time is prolonged from 10 hours to 28 days. For different casting interval time cases, the bonding shear performance of the casting interface brushed with the interfacial retarder is better than those of the casting interface by artificial chiseling and with the natural casting state.
王建民, 肖自强, 范奕涛, 汪能君, 王万祯, 柳俊哲. 组合混凝土界面粘结性能多因素正交试验分析[J]. 材料导报, 2022, 36(2): 20100056-6.
WANG Jianmin, XIAO Ziqiang, FAN Yitao, WANG Nengjun, WANG Wanzhen, LIU Junzhe. Orthogonal Experiment Analysis on the Multiple Factors Influence of the Interfacial Bonding Performance of the Composite Concrete. Materials Reports, 2022, 36(2): 20100056-6.
1 Shi J J, Sun B, Yang X F, et al. China Concrete and Cement Products, 2004, 5(10), 50(in Chinese). 石建军, 孙冰, 杨晓锋, 等. 混凝土与水泥制品, 2004, 5(10), 50. 2 Wu J, Liu C L, Qi X R. Industrial Construction, 1997, 27(9), 27(in Chinese). 吴瑾,刘翠兰,祁学仁.工业建筑,1997, 27(9), 27. 3 Liu C L, Qi X R, Wu J, et al. Journal of Building Structures, 1992, 13(4), 12(in Chinese). 刘翠兰,祁学仁, 吴瑾,等.建筑结构学报,1992, 13(4), 12. 4 Jiang X L, Yue J W.Journal of Sichuan University (Engineering Science Edition), 2006,38(6), 6(in Chinese). 姜忻良, 岳建伟.四川大学学报(工程科学版), 2006, 38(6), 6. 5 Zhang Z L. Study on the anti-shear behavior bond-interface between new and old recycled aggregate concrete. Master's Thesis, Harbin Institute of Technology, China, 2017 (in Chinese). 张智龙. 再生混凝土新旧界面抗剪性能试验研究.硕士学位论文, 哈尔滨工业大学, 2017. 6 Wong R C K, Ma S K Y, Wong R H C, et al.Cement and Concrete Research, 2007, 37(8), 1248. 7 Huang L, Zhuo W D, Gu Y, et al. Journal of Fuzhou University( Natural Science Edition), 2018(3), 396(in Chinese). 黄璐, 卓卫东, 谷音, 等.福州大学学报(自然科学版), 2018(3), 396. 8 Berger R L, Cahn D S.Journal of the American Ceramic Society, 2010, 53(1), 57. 9 Sha J F, Xu H Y, Liu J Z, et al.New Building Materials, 2019, 46(10), 133(in Chinese). 沙建芳, 徐海源, 刘建忠, 等.新型建筑材料, 2019, 46(10), 133. 10 Wang J M, Zhu C F, Xiao Z Q, et al. Advances in Civil Engineering, 2020, 2020,1.
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2022, Vol. 36 
