A Feasibility Study of Engineered Cementitious Composites with Local Ingredients

Abstract:

Polyvinyl alcohol (PVA) fiber reinforced cementitious material (called PVA-ECC) has been intensively studied as a promising alternative to ordinary cement materials. While PVA-ECC has high stain capacity and ductility, its extreme high cost mainly caused by the high unit cost of used Japanese fiber has hindered its application in China. In order to reduce the cost of PVA-ECC, one type of inexpensive PVA fiber produced in China was used to develop a ductile ECC with deflection hardening and multiple cracking behaviors in this research. Compressive strength test, four-point bending test and uniaxial tension test were conducted to investigate the mechanical properties of the newly developed composites. The results show that ECC made with domestic ingredients exhibits large deformation and multiple cracking, revealing that it is feasible to produce low cost ECC material employing local PVA fibers.

• Periodical: Applied Mechanics and Materials (Volume 858)
• Pages: 208-213
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.858.208
• Online since: November 2016
• Authors: Zhi Hua Li*, Wei Kang Chen, Xu Zhou, Feng Quan Chen
• Keywords: Deflection Hardening, ECC, Feasibility Study, Multiple Cracking, Strain Hardening

References

[1] V. C. Li, C. K. Y. Leung, Steady state and multiple cracking of short random fiber composites, J. Eng. Mech. 118(11) (1992) 2246-2264.

DOI: 10.1061/(asce)0733-9399(1992)118:11(2246)

[2] J. Zhang, C. K. Y. Leung, Y. Gao, Simulation of crack propagation of fiber reinforced cementitious composite under direct tension, Eng. Fract. Mech. 78(12) (2011) 2439-2454.

DOI: 10.1016/j.engfracmech.2011.06.003

[3] V. C. Li, D. K. Mishra, H. C. Wu, Matrix design for pseudo strain-hardening fiber reinforced cementitious composites, Mater. Struct. 28(10) (1995) 586-595.

DOI: 10.1007/bf02473191

[4] V. C. Li, S. Wang, C. Wu, Tensile strain-hardening behavior of PVA-ECC, ACI Mater. J. 98(6) (2001) 483-492.

[5] M. Maalej, T. Hashida, V. C. Li, Effect of fiber volume fraction on the off-crack plane energy in strain-hardening engineered cementitious composites, J. Am. Ceram. Soc. 78(12) (1995) 3369-3375.

DOI: 10.1111/j.1151-2916.1995.tb07979.x

[6] M. Maalej, V. C. Li, Flexural/tensile strength ratio in engineered cementitious composites, J. Mater. Civil Eng. 6(4) (1994) 513-528.

DOI: 10.1061/(asce)0899-1561(1994)6:4(513)

[7] J. J. Zhou, J. L. Pan, C. K. Y. Leung, Mechanical behavior of fiber-reinforced engineered cementitious composites in uniaxial compression, J. Mater. Civil Eng. 27(1) (2015) 04014111.

DOI: 10.1061/(asce)mt.1943-5533.0001034

[8] V. C. Li, Strategies for high performance fiber reinforced cementitious composites development. Proceedings of the North American/European Workshop on Advances in Fiber Reinforced Concrete, Bergamo, Italy, 2004, 93-98.

[9] Chinese Standard, JGJ/T70-2009 Standard for test method of performance on building mortar, Beijing: China Building Industry Press, 2009. (In Chinese).

[10] Chinese Standard, GB/T50081-2002 Standard for test method of mechanical properties on ordinary concrete, Beijing: China Building Industry Press, 2002. (In Chinese).