碱激发锂渣人造骨料的制备和性能表征

doi:10.11896/cldb.20080271

Abstract
Figure/Table
References
Related Citation (15)

Download:

Full Text ( PDF ) (9262KB)
Export: BibTeX | EndNote (RIS)

Abstract Lithium slag (LS) is one of waste residues in the lithium battery industry.In this paper, the LS-based artificial aggregate was designed and prepared through alkali-activated technology, during which the mix proportion of lithium slag and alkali activator was experimentally studied. The single-particle strength of LS-based artificial aggregate was measured by a particle strength meter, while the physical properties of such aggregates, such as pelleting types, particle size and water absorption, were characterized according to national standard codes. The microstructure of LS-based artificial aggregate was studied by scanning electron microscope (SEM). In particular, the internal pore structure of the aggregate was further analyzed by X-ray computed tomography (XCT). The results showed that the optimized aggregates (i.e., LS50-6) held the compressive strength of 5.25 MPa, reaching the final compressive strength in 3 days. In terms of microstructure, the density of produced aggregate decreased with the increase of lithium slag content, but increased with the activator dosage. The internal pore distribution of the LS-based artificial aggregate sized up from the surface to the center. These properties of LS-based artificial aggregates indicated that such aggregate could be potentially used in lightweight concrete.

Key words： lithium slag alkali-activated technology artificial aggregates microstructure mechanical property

Published: 31 August 2021

CLC number:

TU526

Fund:National Natural Science Foundation of China (U1801254,51925805).

About author:: Biqin Dong received his B.E. and M.S.degree from Zhejiang University, and got his Ph.D. degree from the Hong Kong University of Science and Engineering in 2005. Current, he is a full professor at College of Civil and Transportation Engineering of Shenzhen University, and serves as an associate director of Guangdong Provincial Key Laboratory of Durability for Marine Civil Engineering. As the principal investigator, Prof. Dong has secured the National Science Fund for Distinguished Young Scholars (2019), the State-Guangdong Joint Fund (2018), and several general funds from NSFC, Guangdong Province and Shenzhen.Yanshuai Wang received his B.E.degree from Qingdao University of Technology, M.S.degree from Shenzhen University, and Ph.D. from Department of Civil and Environmental Engineering at The Hong Kong Polytechnic University. He has published peer-reviewed 22 SCI journal papers, 8 international conference papers/oral pre-sentations, and got 6 Chinese authorized patents. Dr Wang co-conducted one Hong Kong Innovation and Technology Commission project, and participated in several research projects from Hong Kong General Research Fund (GRF), Construction Industry Council (CIC), Environmental Conservation Fund (ECF), and National Natural Science Foundation of China (NSFC).

	Service
	E-mail this article
	Add to my bookshelf
	Add to citation manager
	E-mail Alert
	RSS
	Articles by authors
	DONG Biqin
	LUO Xiaolong
	TIAN Kaige
	HONG Shuxian
	WANG Yanshuai

Cite this article:

DONG Biqin,LUO Xiaolong,TIAN Kaige, et al. Preparation and Characterization of Alkali-activated Lithium Slag-basedArtificial Aggregates[J]. Materials Reports, 2021, 35(15): 15011-15016.

URL:

http://www.mater-rep.com/EN/10.11896/cldb.20080271 OR http://www.mater-rep.com/EN/Y2021/V35/I15/15011

1 Lai X J, Shankman D, Huber C, et al. Journal of Hydrology,2014,519,1698.
2 Ann K Y, Song H W. Corrosion Science,2007,49(11),4113.
3 Zhang R, Castel A, Francois R. Cement and Concrete Research,2010,40(3),415.
4 Etxeberria M, Vazquez E, Mari A, et al. Cement and Concrete Research,2007,37(5),735.
5 Khatib J M. Cement and Concrete Research,2005,35(4),763.
6 Fan C C, Huang R, Hwang H, et al. Construction and Building Mate-rials,2016,112,708.
7 He Z H, Du S G, Chen D. Journal of Hazardous Materials,2018,353,35.
8 Chen D, Hu X, Shi L, et al. Applied Clay Science,2012,59-60,148.
9 Tan H B, Zhang X, He X Y, et al. Journal of Cleaner Production,2018,205,536.
10 Qin Y, Chen J, Li Z, et al. Advances in Materials Science and Enginee-ring, DOI:10.1155/2019/8974625.
11 Karrech A, Dong M, Elchalakani M, et al. Construction and Building Materials, DOI:10.1016/j.conbuildmat.2019.116740.
12 Provis J L. Materials and Structures,2014,47(1-2),11.
13 Pacheco-Torgal F, Castro-Gomes J, Jalali S. Construction and Building Materials,2008,22(7),1305.
14 Liu Z, Wang J X, Li L, et al. Journal of Materials in Civil Engineering,2019,31(12),04019312.
15 Sakulich A R, Anderson E, Schauer C, et al. Construction and Building Materials,2009,23(8),2951.
16 Luukkonen T, Abdollahnejad Z, Yliniemi J, et al. Cement and Concrete Research,2018,103,21.
17 Fernandez-Jimenez A, Palomo A. Cement and Concrete Research,2005,35(10),1984.
18 Palomo A, Grutzeck M W, Blanco M T. Cement and Concrete Research,1999,29(8),1323.
19 Provis J L, Bernal S A. Annual Review of Materials Research,2014,44,299.
20 Puertas F, Martinez-Ramirez S, Alonso S, et al. Cement and Concrete Research,2000,30(10),1625.
21 Song S, Sohn D, Jennings H M, et al. Journal of Materials Science,2000,35(1),249.
22 Liu Z, Wang J, Jiang Q, et al. Journal of Cleaner Production,2019,225,1184.
23 Abdullah A, Abdullah M M A B, Hussin K B, et al. AIP Conference Proceedings, DOI:10.1063/1.5080915.
24 Hankrishnan K I, Ramamurthy K. Waste Management,2006,26(8),846.
25 Baykal G, Doven A G. Resources Conservation and Recycling,2000,30(1),59.
26 Sivakumar A, Gomathi P. Journal of Civil Engineering and Construction Technology,2012,3(2),42.
27 Li Y D, Wu D F, Zhang J P, et al. Powder Technology,2000,113(1-2),176.
28 Ul Rehman M, Rashid K, Ulhaq E, et al. Construction and Building Materials,2020,232(1-2),117290.
29 Yliniemi J, Nugteren H, Illikainen M, et al. International Journal of Mineral Processing,2016,149,42.