浆体流变性能对超高延性水泥基材料性能的影响

doi:10.11896/cldb.21070107

Abstract
Figure/Table
References
Related Citation (15)

Download:

Full Text ( PDF ) (12855KB)
Export: BibTeX | EndNote (RIS)

Abstract The homogeneous dispersion of fibers determined by the rheological properties of mortar is an essential index for developing ultra-high ductility cementitious composites (UHDCC) with polyethylene(PE)fibers. In this work, the water-binder ratio and content of admixtures were adjusted to control the rheological properties of mortar, and the influence of the yield stress and plastic viscosity of mortar on the flowability, tensile, compressive and fracture properties of UHDCC were studied. The results showed that the rheological properties of UHDCC mortar could be controlled by adjusting water-binder ratio and admixtures, according to the behavior of pseudoplastic fluid. UHDCC with the plastic viscosity of 1.91 Pa·s to 6.00 Pa·s exhibited the tensile strain-hardening behavior with various degrees. The plastic viscosity of mortar controlled within a reasonable range, around 3.06 Pa·s to 4.60 Pa·s, could achieve superior tensile capacity with a tensile strain up to 10% due to a better dispersion of fibers.

Key words： polyethylene fiber ultra-high ductility cementitious composite rheological property tensile property fracture toughness

Published: 10 March 2023 Online: 2023-03-14

CLC number:

TU528

Fund:National Natural Science Foundation of China (52038006, 52078282), and China Academy of Engineering Consulting Project “Research on Development Strategy and Key Technologies of Bamboo Construction Sector in China Towards 2035” (2018-ZCQ-06).

	Service
	E-mail this article
	Add to my bookshelf
	Add to citation manager
	E-mail Alert
	RSS
	Articles by authors
	LIANG Long
	ZHANG Xin
	LIU Qiaoling

Cite this article:

LIANG Long,ZHANG Xin,LIU Qiaoling. Effect of Rheology on Properties of Ultra-high Ductility Cementitious Composites[J]. Materials Reports, 2023, 37(5): 21070107-7.

URL:

http://www.mater-rep.com/EN/10.11896/cldb.21070107 OR http://www.mater-rep.com/EN/Y2023/V37/I5/21070107

1 Li V C, Leung C K Y. Journal of Engineering Mechanics, 1992, 118(11), 2246.
2 Li V C. In: Engineered cementitious composites (ECC): Bendable concrete for sustainable and resilient infrastructure. Springer, Berlin, 2019, pp.1.
3 Yang E H, Yang Y, Li V C. ACI Materials Journal, 2007, 104(6), 620.
4 Kanda T, Li V C. Journal of Materials in Civil Engineering, 1998, 10(1), 5.
5 Wang Y C, Hou M J, Yu J T, et al. Materials Reports B:Research Papers, 2018, 32(5), 3535(in Chinese).
王义超, 侯梦君, 余江滔, 等. 材料导报:研究篇, 2018, 32(5), 3535.
6 Yu K Q, Yu J T, Dai J G, et al. Construction and Building Materials, 2018, 158, 217.
7 Ranade R, Li V C, Stults M D, et al. ACI Materials Journal, 2013, 110(4), 375.
8 Zhang L H, Guo L P, Sun W, et al. Journal of Southeast University(Natural Sciences Edition), 2014, 44(5), 1037(in Chinese).
张丽辉, 郭丽萍, 孙伟, 等. 东南大学学报(自然科学版), 2014, 44(5), 1037.
9 Li M, Li V C. Materials and Structures, 2013, 46(3), 405.
10 Cappellari M, Daubresse A, Chaouche M. Construction and Building Materials, 2013, 38, 950.
11 Kanda T, Kanakubo T, Nagai S, et al. In: International RILEM workshop on high performance fiber reinforced cementitious composites in structural applications, Springer, Berlin, 2015, pp. 229.
12 Cao M L, Xu L, Li Z W. Journal of Building Materials, 2017, 20(1), 112(in Chinese).
曹明莉, 许玲, 李志文. 建筑材料学报, 2017, 20(1), 112.
13 Yang E H, Şahmaran M, Yang Y Z, et al. ACI Materials Journal, 2009, 106(4), 357.
14 Ye J H, Yu J T, Cui C, et al. Cement and Concrete Composites, 2021, 115, 103852.
15 Mahmud G H, Yang Z J, Hassan A M T. Construction and Building Materials, 2013, 48, 1027.
16 Xu S, Reinhardt H W. International Journal of Fracture, 2000, 104(2), 181.
17 Xu S L, Zhu Y, Zhang X F. Journal of Hydraulic Engineering, 2008, 39(1), 41(in Chinese).
徐世烺, 朱榆, 张秀芳. 水利学报, 2008, 39(1), 41.