Abstract: This study selected theoriginal sea sands from Shandong, Fujian and Guangxi Provinces, and characterized their physical and chemical properties, which were further compared with the river sand from Changsha. It is indicated that the mineral composition, fineness modulus and crushing value of sea sands are almost same as the river sand. Meanwhile, the chloride and shell contents of the sea sands from different regions are different. Then the seawater sea-sand concrete (SWSSC) samples with three different strength grades (C30, C40 and C50) were prepared with these sea sands from different regions and the artificial seawater. The mechanical tests were conducted to obtain the key mechanical properties, including compressive strengths, elastic modulus and splitting tensile strength, etc., which were also compared with the ordinary concrete (OC). Then the related mechanism was studied with the help of XRD and SEM. The results showed that the early-age (3 d and 7 d curing age) compressive strengths of the SWSSC were higher than those of the ordinary concrete (OC), while their late-age (after 28 d curing age) compressive strengths were lower than those of OC. The difference in tensile strengths of SWSSC and OC gradually decreased with the increa-sing curing age, and the tensile strengths of SWSSC with 360 d curing age were still higher than that of OC. Finally, the pore structures of SWSSC and OC with different ages were analyzed by the 1H NMR test. The development of pore structures in SWSSC and OC were consistent with that of mechanical properties. This study can provide important support for the mix design and engineering application of SWSSC.
作者简介: 耿健智,湖南大学土木工程学院硕士研究生,在朱德举教授的指导下进行研究。目前主要研究领域为海水海砂混凝土的力学性能。 朱德举,湖南大学教授,博士研究生导师。在高性能织物增强水泥基复合材料、纤维增强树脂基复合材料(复材)和海水海砂混凝土及海洋环境中的复材筋增强混凝土结构、生物材料和仿生材料的多尺度力学行为及仿生设计与制备等交叉领域进行了深入系统的研究。近五年来,主持国家级和省部级科研项目10项。发表SCI/EI文章90余篇,英文著作章节四篇。曾获日本混凝土学会期刊Journal of Advanced Concrete Technology最佳论文奖。国际学术期刊Journal of Sustainable Cement-Based Materials编委,中国复合材料学会土木工程复合材料分会委员,Cement and Concrete Composites等20余个国际权威期刊的审稿人。
引用本文:
耿健智, 朱德举, 郭帅成, 易勇, 周琳林. 基于不同地域海砂的海水海砂混凝土力学性能试验研究[J]. 材料导报, 2022, 36(3): 21010189-8.
GENG Jianzhi, ZHU Deju, GUO Shuaicheng, YI Yong, ZHOU Linlin. Experimental Study on Mechanical Properties of Seawater Sea-sand Concrete with Sea-sands from Different Regions. Materials Reports, 2022, 36(3): 21010189-8.
1 Etxeberria M, Fernandez J M, Limeira J. Construction and Building Materials, 2016, 113, 586. 2 Limeira J, Etxeberria M, Agulló L, et al. Construction and Building Materials, 2011, 25(11), 4165. 3 Katz A, Baum H. ACI Materials Journal, 2006, 103(6), 474. 4 Hasdemir S, Tugrul A, Yılmaz M. Construction and Building Materials, 2016, 112, 940. 5 Yi Y, Zhu D, Guo S, et al. Cement and Concrete Composites, 2020, 113, 103695. 6 Xiao J, Zhang Q, Zhang P, et al. Structural Concrete, 2019, 20(5), 1631. 7 Guo M, Hu B, Xing F, et al. Construction and Building Materials, 2020, 234, 117339. 8 Liu W, Xie Y J, Dong B Q, et al. Bulletin of the Chinese Ceramic Society, 2014, 33(1), 15(in Chinese). 刘伟,谢友均,董必钦,等. 硅酸盐通报,2014, 33(1), 15. 9 Kaushik S K, Islam S. Cement and Concrete Composites, 1995, 17(3), 177. 10 Mohammed T U, Hamada H, Yamaji T. Cement and Concrete Research, 2004, 34(4), 593. 11 Chandrakeerthy S R. In: Transactions, Institution of Engineers. Sri Lanka, 1994, pp.93. 12 Girish C G, Tensing D, Priya K L. International Journal of Engineering Sciences and Energing Technologies, 2015, 8(3), 88. 13 Yang E, Kim M, Park H, et al. Construction and Building Materials, 2010, 24(5), 758. 14 Xiao J Z, Zhang P, Zhang Q T, et al. Journal of Architecture and Civil Engineering, 2018, 35(2), 16(in Chinese). 肖建庄,张鹏,张青天,等. 建筑科学与工程学报, 2018, 35(2), 16. 15 Manigandan R, Srinivasan V, Pazhani K C. Asian Journal of Engineering and Applied Technology, 2018, 7(S1), 1. 16 Dhondy T, Remennikov A, Asce M, et al. Journal of Materials in Civil Engineering, 2020, 32(12), 04020392. 17 Li N, Farzadnia N, Shi C. Cement and Concrete Research, 2017, 100, 214. 18 Liu W, Cui H, Dong Z, et al. Construction and Building Materials, 2016, 120, 1. 19 Thaulow N, Sahu S. Materials Characterization, 2004, 53(2-4), 123. 20 Zang W J, Guo L P, Cao Y Z, et al. Materials Reports B:Research Papers, 2019, 33(4), 1317(in Chinese). 臧文洁,郭丽萍,曹园章. 材料导报:研究篇, 2019, 33(4), 1317. 21 Yu Q L, Yang T H, Tang C A, et al. Journal of Building Materials, 2009, 12(6), 643(in Chinese). 于庆磊,杨天鸿,唐春安,等.建筑材料学报,2009, 12(6), 643. 22 Dobiszewska M, Schindler A K, Pichór W. Construction and Building Materials, 2018, 177, 222. 23 Xue C Z, Shen A Q, Guo Y C. Materials Reports B:Research Papers, 2019, 33(4), 1348(in Chinese). 薛翠真,申爱琴,郭寅川. 材料导报:研究篇, 2019, 33(4), 1348. 24 Zang W J. Study on the interaction of cementitious materials and various aggressive media in the south China sea environment. Master's Thesis, Southeast University, China, 2018(in Chinese). 臧文洁. 南海环境多种侵蚀性介质与水泥基材料的交互作用研究. 硕士学位论文, 东南大学, 2018. 25 Liu J P, Liu Y J, Shi L, et al. Journal of Building Materials, 2016, 19(6), 993(in Chinese). 刘加平,刘玉静,石亮,等.建筑材料学报, 2016, 19(6), 993.
渝公网安备50019002502923号 版权所有：《材料导报》编辑部
2022, Vol. 36 
