Research and Application of Materials Science

High Temperature Flexural Deformation Properties of Engineered Cementitious Composites (ECC) with Hybrid Fiber Reinforcement

YUZhihui, YUANZhen, XIAChaofan, ZHANGCong

Abstract


Engineered Cementitious Composites (ECC) is a class of high-performance fiber reinforced composites with ultra-ductility designed based on micromechanics, and it has been developed for increasing application in the construction industry during recent decades. The properties of ECC at room temperature have been tested and studied in depth, however, few studies focus on its performance after high temperature that is one of the worst conditions to ECC. To investigate the change tendency and mechanism for the high temperature flexural properties of hybrid fiber reinforced ECC and the feasibility of calcium carbonate whisker to reduce the cost of ECC materials, polyvinyl alcohol fiber (PVA) reinforced strain hardening cementitious composites (PVA-ECC), steel fiber + PVA fiber reinforced ECC (defined as HyFRECC-A) and steel fiber + PVA fiber + CaCO3 whisker reinforced ECC (defined as HyFRECC-B) subject to room temperature and 200 ℃, 400 ℃, 600 ℃, 800 ℃ elevated temperature exposure were experimentally compared. The results indicate that equally replacing PVA fibers by steel fibers degraded the flexural hardening ability of PVA-ECC at room temperature, while the addition of appropriate amount of CaCO3 whisker improved the flexural strength, toughness and flexural hardening behavior. The elevated temperature posed a significant effect on the flexural strength and toughness of the three types of ECCs. Flexural deflection hardening behavior of the three types of ECCs was eliminated after high temperature exposure. Flexural strength and toughness of PVA-ECC presented an exponential decay along with the increase of temperature. The addition of steel fiber slowed down the decay rate. Although the use of CaCO3 whisker increased the post-temperature flexural strength and toughness of HyFRECC-B, the decay rate was not further decreased.


Keywords


engineered cementitious composites; hybrid fiber; high temperature; flexural behavior

Full Text:

PDF

References


Li VC. Progress and application of Engineered Cementitious Composites [J]. Journal of the Chinese Ceramic Society, 2007, 35(4): 531-536.

Li VC. On Engineered Cementitious Composites (ECC) [J]. Journal of Advanced Concrete Technology, 2003, 1(3): 215-230.

LIU Zejun, LI Yan, WEN Congge. Experimental study on strength and deformation performance of PVA-ECC under splitting tension [J]. Journal of Building Materials, 2016, 19(4): 746-751.

Qudah S, Maalej M. Application of Engineered Cementitious Composites (ECC) in interior beame-column connections for enhanced seismic resistance [J]. Engineering Structures, 2014, 69: 235-245.

Choi W, Yun H, Cho C. Attempts to apply high performance fiber-reinforced cement composite (HPFRCC) to infrastructures in South Korea [J]. Composite Structures, 2014, 109: 211-223.

WANG Zhenbo, ZHANG Jun, WANG Qing. Mechanical behavior and crack width control of hybrid fiber reinforced ductile cementitious composites [J]. Journal of Building Materials, 2018, 21(2): 216-221.

Maalej M, Quek ST, Ahmed SFU, et al. Review of potential structural applications of hybrid fiber Engineered Cementitious Composites [J]. Construction and Building Materials, 2012, 36: 216-227.

WANG Zhenbo, ZUO Jianping, ZHANG Jun. Mechanical properties of hybrid fiber reinforced Engineered Cementitious Composites under uniaxial compression [J]. Journal of Building Materials, 2018, 21(4): 639-644.

Khin TS, Zhang YX, Zhang LC. Material properties of a new hybrid fibre-reinforced Engineered Cementitious Composites [J]. Construction and Building Materials, 2013, 43: 399-407.

Khin TS, Zhang YX, Zhang LC. Impact resistance of hybrid-fibre Engineered Cementitious Composite panels [J]. Composite Structures, 2013, 104: 320-330.

Alessandro PF, Hirozo M, Tomoya N. Tailoring hybrid strain-hardening cementitious compsotes [J]. ACI Materials Journal, 2014, March-April: 211-218.

Jun Zhang, Zhenbo Wang, Qing Wang. Simulation and test of flexural performance of polyvinyl alcohol-steel hybrid fiber reinforced cementitious composite [J]. Journal of Composite Materials, 2016, 0: 1-15.

Li QH, Gao X, Xu SL. Multiple effects of nano-SiO2 and hybrid fibers on properties of high toughness fiber reinforced cementitious composites with high volume fly ash [J]. Cement and Concrete Composites, 2016, 72: 201-212.

Sahmaran M, Lachemi M, Li VC. Assessing mechanical properties and microstructure of fire-damaged Engineered Cementitious Composites [J]. ACI Materials Journal, 2010, 107(3): 1-8.

Sahmaran M, Lachemi M, Li VC. Effect of fly ash and PVA fiber on microstructural damage and residual properties of Engineered Cementitious Composites exposed to high temperatures [J]. ASCE Journal of Materials in Civil Engineering, 2011, 23(12): 1735-1745.

Mechtcherine V, Andrade S, Muller S. Coupled strain rate and temperature effects on the tensile behavior of strain-hardening cement-based composites (ECC) with PVA fibers [J]. Cement and Concrete Research, 2012, 42(11): 1417-1427.

Bhat PS, Chang V, Li M. Effect of elevated temperature on strain-hardening engineered cementitious composites [J]. Construction and Building Materials, 2014, 69: 370-380.

Magalhaes M, Toledo Filho R, Fairbairn E. Thermal stableility of PVA fiber strain hardening cement-based composites [J]. Construction and Building Materials, 2015, 94: 437-447.

ZHANG Cong, CAO Ming-li. Mechanical property test of a multi-scale fiber reinforced cementitious composites [J]. Acta Materiae Composite Sinica, 2014, 31(3): 661-668.

Ma H, Cai JM, Lin Z. CaCO3 whisker modified Engineered Cementitious Composite with local ingredients [J]. Construction and Building Materials, 2017, 151: 1-8.

ZHANG Cong, CAO Ming-li. Using calcium carbonate whisker in hybrid fiber reinforced cementitious composites [J]. ASCE Journal of Materials in Civil Engineering, 2015, 27(4): 1-13.

International Organization for Standardization. ISO 679 Cement-Test methods-Determination of strength [S]. Switzerland: ISO, 2009.

American Society for Testing and Materials. ASTM C348 Standard test method for flexural strength of hydraulic-cement mortars [S]. Philadelphia: ASTM International, 2008.

American Society for Testing and Materials. ASTM C1609 Standard test method for flexural performance of fiber-reinforced concrete [S]. Philadelphia: ASTM International, 2010

Japan Concrete Institute. JCI-SF4 Methods of tests for flexural strength and flexural toughness of fiber reinforced concrete [S]. Japan: Japan Concrete Institute, 1983.

Lucia A, Gerard P, Etienne M. The use of thermal analysis in assessing the effect of temperature on a cement paste [J]. Cement and Concrete Research, 2005, 35: 609-613.

Liu JC, Tan KH. Mechanism of PVA fiber in mitigating explosive spalling of engineered cementitious composite at elevated temperature [J]. Cement and Concrete Composites, 2018, 93: 235-245.

ZHANG Cong, CAO Ming-li. Microscopic reinforcement for cement based composite materials [J]. Construction and Building Materials, 2013, 40: 14-25.




DOI: https://doi.org/10.33142/rams.v2i2.3168

Refbacks

  • There are currently no refbacks.


Copyright (c) 2021 Zhihui YU, Zhen YUAN, Chaofan XIA, Cong ZHANG

Creative Commons License
This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.