基于不同地域海砂的海水海砂混凝土力学性能试验研究

doi:10.11896/cldb.21010189

Abstract
Figure/Table
References
Related Citation (15)

Download:

Full Text ( PDF ) (16569KB)
Export: BibTeX | EndNote (RIS)

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.

Key words： seawater sea-sand concrete mechanical property pore structure

Published: Online: 2022-02-10

CLC number:

TU528

Fund:National Natural Science Foundation of China (U1806225), High-Tech Industry Science and Technology Innovation Leading Plan of Hunan Province (2020GK2079),High-level Talent Gathering Project of Hunan Province (2018RS3057).

	Service
	E-mail this article
	Add to my bookshelf
	Add to citation manager
	E-mail Alert
	RSS
	Articles by authors
	GENG Jianzhi
	ZHU Deju
	GUO Shuaicheng
	YI Yong
	ZHOU Linlin

Cite this article:

GENG Jianzhi,ZHU Deju,GUO Shuaicheng, et al. Experimental Study on Mechanical Properties of Seawater Sea-sand Concrete with Sea-sands from Different Regions[J]. Materials Reports, 2022, 36(3): 21010189-8.

URL:

http://www.mater-rep.com/EN/10.11896/cldb.21010189 OR http://www.mater-rep.com/EN/Y2022/V36/I3/21010189

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.