Abstract: Cement mortar is prone to brittle cracking under pressure, and its deformability can be improved by the use of rubber granules to make high rubber mixing mortar which has excellent energy absorption effect and can effectively improve the deformation adaptability of mortar. In this work, the stress-strain curves during the compression process of mortar, the effects of water-cement ratio and rubber admixture on the strength and deformation capacity of mortar were investigated, and the energy evolution law was analyzed. The results showed 35% reduction in strength as the water-cement ratio increased from 0.3 to 0.5, and 84% reduction in strength as the rubber doping increased from 0% to 75%. With the increase of water-cement ratio and rubber doping, the modulus of elasticity decreased significantly, and the total energy from compression to destruction decreased, which was transformed into elastic strain energy and dissipation energy. The trend was consistent with the mortar without rubber particles, with a significant correlation with axial compressive strength. Ultimate compressive strain was affected by both strength and rubber percentage the ultimate compressive strain decreased and then increased when rubber percentage increases from 0% to 75%. Rubber particles could slow down energy dissipation, and the increase of water-cement ratio accelerated energy dissipation and made the specimen fail. The water-cement ratio and rubber percentage have a significant effect on the strength. High percentage of rubber particles has a significant improvement on the deformation capacity, delaying the energy dissipation, and effectively hindering the development of cracks.
马豪达, 白银, 陈波, 葛龙甄, 白延杰, 张丰. 水胶比和橡胶掺量对砂浆力学性能及能量演化规律的影响[J]. 材料导报, 2025, 39(1): 23120226-7.
MA Haoda, BAI Yin, CHEN Bo, GE Longzhen, BAI Yanjie, ZHANG Feng. Influence of Water-Cement Ratio and Rubber Admixture on Mechanical Properties and Energy Evolution Law of Mortar. Materials Reports, 2025, 39(1): 23120226-7.
1 Li X, Li L, Zheng Y, et al. Materials, 2023, 16(13), 4731. 2 Yang R Z, Xu Y, Chen P Y, et al. Materials Reports, 2021, 35(10), 10062(in Chinese). 杨荣周, 徐颖, 陈佩圆, 等. 材料导报, 2021, 35(10), 10062. 3 Cheng X S, Song Q S, Yao Y T. Rubber Science and Technology, 2020, 18(5), 245(in Chinese). 程贤甦, 宋秋生, 姚玉田. 橡胶科技, 2020, 18(5), 245. 4 Zeng L, Yang T, Ma L L. Journal of Yangtze University (Natural Science Edition), 2023, 20(6), 125(in Chinese). 曾磊, 杨涛, 马林玲. 长江大学学报(自然科学版), 2023, 20(6), 125. 5 Jiao C J, Zhang C M, Zhang W H. Journal of Chongqing Jianzhu University, 2008, 30(2), 138. 6 Cao X W, Chen X D, Bai Y, et al. Mechanical properties of rubber concrete-fracture, fatigue and impact, Southeast University Press, China, 2021, pp. 11(in Chinese). 曹小武, 陈徐东, 白银, 等. 橡胶混凝土力学特性-断裂、疲劳、冲击, 东南大学出版社, 2021, pp. 11. 7 Feng L Y. Experimental study on properties of rubber concrete. Master's Thesis, North China Institute of Water Conservancy and Hydropower, China, 2013 (in Chinese). 冯凌云. 橡胶混凝土材料性能的试验研究. 硕士学位论文, 华北水利水电学院, 2013. 8 Xue G, Sun L S, Xu S. Building Structure, 2021, 51(16), 121(in Chinese). 薛刚, 孙立所, 许胜. 建筑结构, 2021, 51(16), 121. 9 Xue G, Dong Y J, Yi X, et al. Building Structure, 2022, 52(2), 115(in Chinese). 薛刚, 董亚杰, 衣笑, 等. 建筑结构, 2022, 52(2), 115. 10 Xue G, Zhu H J, Xu S, et al. Engineering Mechanics, 2022, 39(11), 203. 11 Atahan A O, Yücel A . Construction and Building Materials, 2012, 36, 617. 12 Mendis A S M, Al-Deen S, Ashraf M. Construction and Building Materials, 2017, 137, 354. 13 Mendis A S M, Al-Deen S, Ashraf M. Construction and Building Materials, 2017, 154, 644. 14 Yang R Z, Chen P Y, Ge J J, et al. Materials Reports, 2022, 36(9), 227(in Chinese). 杨荣周, 陈佩圆, 葛进进, 等. 材料导报, 2022, 36(9), 227. 15 Liu Y R, Ge S K, Han Y. Materials Reports, 2014, 28(S2), 422(in Chinese). 刘艳荣, 葛树奎, 韩瑜. 材料导报, 2014, 28(S2), 422. 16 Shu X W. Journal of Highway and Transportation Research and Development, 2018, 35(7), 15(in Chinese). 舒兴旺. 公路交通科技, 2018, 35(7), 15. 17 Xue G, Liu L Q. Concrete, 2022(3), 105(in Chinese). 薛刚, 刘利强. 混凝土, 2022(3), 105. 18 Hu Y L, Gao P W, Li F R, et al. Journal of Building Materials, 2020, 23(1), 85. 19 Tian M M. Experimental study on water-binder ratio of large cementitious material. Master's Thesis, Beijing University of Civil Engineering and Architecture, China, 2022 (in Chinese). 田萌萌. 大胶凝材料水胶比相关规律的试验研究. 硕士学位论文, 北京建筑大学, 2022. 20 Wu Y M. Study of the reactive powder concrete (RPC) about compressive stress-strain curve. Master's Thesis, Guangzhou University, China, 2013 (in Chinese). 吴有明. 活性粉末混凝土(RPC)受压应力—应变全曲线研究. 硕士学位论文, 广州大学, 2013. 21 Xu H Y. Research on the compound method and physical-mechanical properties of modified rubberized concrete. Master's Thesis, Zhengzhou University, China, 2016 (in Chinese). 徐宏殷. 改性橡胶混凝土的配制与物理力学性能研究. 硕士学位论文, 郑州大学, 2016. 22 Yuan Q, Feng L Y, Cao H L, et al. Journal of Architecture and Civil Engineering, 2013, 30(3), 96(in Chinese). 袁群, 冯凌云, 曹宏亮, 等. 建筑科学与工程学报, 2013, 30(3), 96. 23 Xue G, Sun L S, Xu S, et al. Journal of Shenyang Jianzhu University (Natural Science), 2020, 36(6), 1082(in Chinese). 薛刚, 孙立所, 许胜, 等. 沈阳建筑大学学报(自然科学版), 2020, 36(6), 1082. 24 Fu Q, Zhao X, He J Q, et al. Journal of the Chinese Ceramic Society, 2021, 48(8), 1670(in Chinese). 傅强, 赵旭, 何嘉琦, 等. 硅酸盐学报, 2021, 48(8), 1670. 25 Yang R Z, Xu Y, Chen P Y. Materials Reports, 2020, 34(14), 14070(in Chinese). 杨荣周, 徐颖, 陈佩圆. 材料导报, 2020, 34(14), 14070.
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2025, Vol. 39 
