Abstract
The tensile and flexural properties of polyvinyl alcohol (PVA) fiber reinforced ultra high toughness cementitious composite (UHTCC) were investigated. The composite, tested at the age of 14 d, 28 d and 56 d, shows extremely remarkable pseudo strain hardening behavior, saturated multiple cracking and ultra high ultimate strain capacity above 4% under uniaxial loading. Also, the corresponding crack widths are controlled under 50 μm even at 56 days age. In the third point bending tests on thin plate specimens, the composite shows ultra high flexural ductility and multiple cracking on the tension surface. The high ultimate flexural strength/first tensile strength ratio of about 5 verifies the pseudo strain hardening behavior of UHTCC. SEM observation on fracture surfaces provides indirect evidence of optimal design for the composite.
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References
Naaman AE, and Homrich JR. Tensile Stress-strain Properties of SIFCON [J]. ACI Materials J., 1989, 86(3): 244–251
Krstulovic-Opara Neven, Malak Sary. Tensile Behavior of Slurry inFiltrated Mat Concrete (SIMCON) [J]. ACI Materials Journal, 1997, 94(1): 39–46
Benson SDP (Parsons Brinckerhoff), Karihaloo BL. CARDIFRC [registered trademark]-Development and mechanical properties. Part III: Uniaxial Tensile Response and Other Mechanical Properties [J]. Magazine of Concrete Research, 2005, 57(8): 433–443
Li VC, and Leung CKY. Steady State and Multiple Cracking of Short Random Fiber Composites [J]. Journal of Engineering Mechanics, ASCE, 1992, 188(11): 2246–2264
Xu Shilang, Li Hedong, Zhang Yinghua,et al. Process report on South-North Water Transfer Project Construction in China, Reaseach on Ultra High Toughness Cementitious Composite and Its Applications [R]. Dalian: Dalian University of Technology, 2007 (in Chinese)
Lin Z and VC Li. Crack Bridging in Fiber Reinforced Cementitious Composites with Slip-hardening Interfaces [J]. Journal of Mechanics and Physics of Solids, 1997, 45(5): 763–787
Wang Tiemeng. Crack Control of Engineering Structures [M]. Beijing: China Building Industry Press, 1997 (in Chinese)
Maalej M, Li VC. Flexural/Tensile Strength Ratio in Engineered Cementitious Composites [J]. Journal of Materials in Civil Engineering, ASCE, 1994, 6(4): 513–528
Maalej M. Fracture Resistance of Engineered Fiber Cementitious Composites and Implications to Structural Behavior [D]. University of Michigan, USA, 1994
Li V C, Maalej M, and Hashida T. Experimental Determination of Stress-crack Opening Relation in Fiber Cementitious Composites with Crack Tip Singularity [J]. Journal of Materials Science, 1994, 29(10): 2719–2724
Maalej M, and Li V C. Flexural Strength of Fiber Cementitious Composites [J]. Journal of Materials in Civil Engineering, ASCE, 1994,6(3): 390–406
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Funded by the Hong Kong Research Grant Council(CERG UST6138/04E), the Key Program of National Natural Science Foundation of China(No.50438010) and the Research & Application of Key Technology for the South-North Water Transfer Project Construction in China(JGZXJJ2006-13)
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Li, H., Xu, S. & Leung, C.K.Y. Tensile and flexural properties of ultra high toughness cemontious composite. J. Wuhan Univ. Technol.-Mat. Sci. Edit. 24, 677–683 (2009). https://doi.org/10.1007/s11595-009-4677-5
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DOI: https://doi.org/10.1007/s11595-009-4677-5