轻质玄武岩纤维高延性水泥基复合材料研制及导热性能研究

doi:10.11896/cldb.22040279

Abstract
Figure/Table
References
Related Citation (15)

Download:

Full Text ( PDF ) (5568KB)
Export: BibTeX | EndNote (RIS)

Abstract High ductility fiber reinforced fire-resistive engineered cementitious composites (FR-ECC) have the advantages of fire inflammability, non-decomposition of toxic gases at high temperatures, and good durability. At the same time, it has the advantages of high ductility and good crack resistance, and has been widely concerned and studied in recent years. Conventional FR-ECC uses organic fiber, which is decomposed and gasification at high temperature, resulting in the ductility reduction and cracking of refractories, which restricts the practical application of FR-ECC. In this work, aluminate cement with excellent high temperature resistance and basalt fiber (BF) were used as raw materials to design and develop lightweight high ductility basalt fiber reinforced engineered cementitious composites (LWBF-ECC), and the evolution law of mechanical and thermal properties of the material after high temperature was studied. The variation rules of dry density, phase change, uniaxial tensile strength and compressive strength of LWBF-ECC at room temperature and elevated temperature were studied, and the variation rules of ductility and thermal conductivity at different temperatures were also studied. The results show that the ductility of LWBF-ECC can reach 0.82% at room temperature, which is 80 times of the conventional sprayed fire-resistant material on the surface of steel structure. Due to BF’s excellent high temperature resistance, it can still give full play to the bridging function at high temperature. When the exposure temperature is below 400 ℃, LWBF-ECC material shows strain hardening in tensile, and it still retains a certain ductility at high temperature. The ultimate strains at 100, 200 and 400 ℃ are 0.78%, 0.32% and 0.18%, respectively. With the temperature elevated, LWBF-ECC dry density decreases, porosity increases and thermal conductivity decreases. The hydration change and water of crystallization loss of cementitious materials at high temperature leads to the higher cement content, the more mass loss, and the more obvious dry density decrease.

Key words： strain-hardening cementitious composites basalt fiber fire resistance lightweight thermal conductivity property

Published: 25 October 2023 Online: 2023-10-19

CLC number:

TU545

Fund:National Natural Science Foundation of China (51878238) and the Natural Science Foundation of Hebei Province (E2021202037).

	Service
	E-mail this article
	Add to my bookshelf
	Add to citation manager
	E-mail Alert
	RSS
	Articles by authors
	ZHANG Wenya
	ZHOU Jian
	LI Hui
	XU Mingfeng

Cite this article:

ZHANG Wenya,ZHOU Jian,LI Hui, et al. Study of Lightweight Basalt Fiber Reinforced Strain-hardening Cementitious Composites and Its Thermal Conductivity Properties[J]. Materials Reports, 2023, 37(20): 22040279-6.

URL:

http://www.mater-rep.com/EN/10.11896/cldb.22040279 OR http://www.mater-rep.com/EN/Y2023/V37/I20/22040279

1 Kodur V, Dwaikat M. Engineering Structures, 2009, 31(2), 369.
2 Chen S, Jiang L, Wu L, et al. Construction and Building Materials, 2019, 204, 659.
3 Ming C Y, Sulong N. Materials & Design, 2012, 34, 719.
4 Zhou X, D’Aniello S P, Yu H Z. Fire Safety Journal, 2012, 54(54), 36.
5 Wang L, Dong Y, Zhang C, et al. Fire Technology, 2015, 51(3), 627.
6 Goode M G. National Institute of Standards and Technology, 2012, 4, 872.
7 Kodur V, Shakya A M. Fire Safety Journal, 2013, 61, 314.
8 Carino N J, Starnes M A, Gross J L, et al. National Construction Safety Team Act Reports, 2005, 1, 1.
9 Arablouei A, Kodur V. International Journal of Impact Engineering, 2015, 83, 11.
10 Arablouei A, Kodur V. Engineering Structures, 2016, 116, 56.
11 Arablouei A, Kodur V. Engineering Fracture Mechanics, 2014, 121, 67.
12 Wang W Y, Li G Q. Journal of Constructional Steel Research, 2009, 65(6), 1392.
13 Braxtan N L, Pessiki S P. Journal of Structural Engineering, 2011, 137(9), 946.
14 Li V C, Leung C. Journal of Engineering Mechanics, 1992, 118(11), 2246.
15 Maalej M, Li V C. Journal of Materials in Civil Engineering, 1994, 6(4), 513.
16 Weimann M B, Li V C. Restoration of Buildings & Monuments, 2003, 9(5), 513.
17 Zhang Q, Ranade R, Li V C. ACI Materials Journal, 2014, 111(6), 517.
18 Da Silva M M, Toledo F R D, Fairbairn E M R. Construction and Buil-ding Materials, 2015, 94, 437.
19 Wu C, Li V C. Composites Part B Engineering, 2017, 110, 255.
20 Bhat P S, Chang V, Li M. Construction and Building Materials, 2014, 69, 370.
21 Yu J, Lin J, Zhang Z, et al. Construction and Building Materials, 2015, 99, 82.
22 Singha K. International Journal of Textile Science, 2012, 1(4), 19.
23 Dhand V, Mittal G, Rhee K Y, et al. Composites Part B Engineering, 2015, 73, 166.
24 Song S. Study on mechanical properties of basalt fiber reinforced high ductility cement matrix composites at room temperature and high temperature. Master’s Thesis, Hebei University of Technology, China, 2019(in Chinese).
宋嵩. 玄武岩纤维增强高延性水泥基复合材料常温与高温力学性能研究. 硕士学位论文, 河北工业大学, 2019.
25 Lee N K, Koh K T, Park S H, et al. Cement and Concrete Research, 2017, 102, 109.
26 Yu K Q, Dai J G, Lu Z D, et al. Journal of Materials in Civil Engineering, 2014, 27(10), 04014268.
27 Bouguerra A, Ledhem A. Cement and Concrete Research, 1998, 28(8), 1179.
28 Zhang Y, Gu W J, Liu K, et al. China’s Refractories, 2019, 28(2), 27.