Uniaxial tensile behavior and mechanism characterization of multi-scale fiber-reinforced cementitious materials

L.  Li; M.  Cao; Z.  Li; W.  Zhang; D.  Shi; K.  Shi

doi:10.3989/mc.2022.05521

Authors

L. Li Key Laboratory of Agricultural Soil and Water Engineering in Arid and Semiarid Areas of Ministry of Education, Northwest A&F University - - College of Water Resources and Architectural Engineering, Northwest A&F University - Faculty of Infrastructure Engineering, Dalian University of Technology - State Key Laboratory of Green Building Materials, China Building Materials Academy https://orcid.org/0000-0003-3966-6363
M. Cao Faculty of Infrastructure Engineering, Dalian University of Technology https://orcid.org/0000-0002-7917-4710
Z. Li Key Laboratory of Agricultural Soil and Water Engineering in Arid and Semiarid Areas of Ministry of Education, Northwest A&F University - College of Water Resources and Architectural Engineering, Northwest A&F University https://orcid.org/0000-0002-6816-0575
W. Zhang State Key Laboratory of Green Building Materials, China Building Materials Academy https://orcid.org/0000-0002-9292-2867
D. Shi State Key Laboratory of Green Building Materials, China Building Materials Academy https://orcid.org/0000-0002-6175-2850
K. Shi School of Civil Engineering and Architecture, Zhengzhou University of Aeronautics https://orcid.org/0000-0001-9513-2679

DOI:

https://doi.org/10.3989/mc.2022.05521

Keywords:

Hybrid fiber, CaCO3 whisker, Cementitious material, Uniaxial tensile property, Calculations, Micro-mechanism

Abstract

The uniaxial tensile properties of multi-scale fiber-reinforced cementitious material (MSFRCM) with steel and polyvinyl alcohol (PVA) fibers and calcium carbonate whisker (CW) were studied. The results showed that CW improved the uniaxial tensile stiffness, strength, peak strain, and toughness of the steel-PVA hybrid fiber-reinforced cementitious material. The CW not only played a role in the small deformation stage but also improved the load holding capacity and toughness of the hybrid fiber-reinforced cementitious material during the large deformation stage. Computational models to assess the uniaxial tensile strength and toughness of the MSFRCM were established. Microstructure observations showed that the steel and PVA fibers formed a weak interfacial transition zone (ITZ) due to the “wall effect.” The CW effectively optimized the structure of the ITZ of the steel and PVA fibers through physical and chemical effects, such as filling, bridging, improving Ca(OH)₂ orientation, and chemical effects. The steel fibers, PVA fibers, and CW in the MSFRCM bridged cracks at the macro, mesoscopic, and microscopic levels, respectively. As a result, we observed a fiber chain effect that improved the positive hybrid effect between the multi-scale fibers.

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References

Xu, L.; Huang, L.; Chi, Y.; Mei, G. (2016) Tensile behavior of steel-polypropylene hybrid fiber-reinforced concrete. Aci Mater. J. 113 [2]: 219-229. https://doi.org/10.14359/51688641

Yang, Y.; Zhou, Q.; Deng, Y.; Lin, J. (2020) Reinforcement effects of multi-scale hybrid fiber on flexural and fracture behaviors of ultra-low-weight foamed cement-based composites. Cem. Concr. Compos. 108,103509. https://doi.org/10.1016/j.cemconcomp.2019.103509

Zhang, Y.; Ju, J.W.; Zhu, H.; Yan, Z. (2020) A novel multi-scale model for predicting the thermal damage of hybrid fiber-reinforced concrete. Int. J. Damage Mech. 29 [1], 19-44. https://doi.org/10.1177/1056789519831554

Bao, J.; Li, S.; Zhang, P.; Ding, X.; Xue, S.; Cui, Y. (2020) Influence of the incorporation of recycled coarse aggregate on water absorption and chloride penetration into concrete. Constr. Build. Mater. 239, 117845. https://doi.org/10.1016/j.conbuildmat.2019.117845

Bao, J.; Xue, S.; Zhang, P.; Dai, Z.; Cui, Y. (2020) Coupled effects of sustained compressive loading and freeze-thaw cycles on water penetration into concrete. Struct. Concrete. 22 [S1], E944-E954. https://doi.org/10.1002/suco.201900200

Li, L.; Cao, M.; Xie, C.; Yin, H. (2019) Effects of CaCO3 whisker, hybrid fiber content and size on uniaxial compressive behavior of cementitious composites. Struct. Concrete. 20 [1], 506-518. https://doi.org/10.1002/suco.201800185

Cao, M.; Li, L.; Shen, S. (2019) Influence of reinforcing index on rheology of fiber-reinforced mortar. Aci Mater. J. 116 [6], 95-105. https://doi.org/10.14359/51716816

Cao, M.; Li, L.; Khan, M. (2018) Effect of hybrid fibers, calcium carbonate whisker and coarse sand on mechanical properties of cement-based composites. Mater. Construcc. 68 [330], e156. https://doi.org/10.3989/mc.2018.01717

Cao, M.; Li, L. (2018) New models for predicting workability and toughness of hybrid fiber reinforced cement-based composites. Constr. Build. Mater. 176, 618-628. https://doi.org/10.1016/j.conbuildmat.2018.05.075

Li, L.; Cao, M. (2018) Influence of calcium carbonate whisker and polyvinyl alcohol- steel hybrid fiber on ultrasonic velocity and resonant frequency of cementitious composites. Constr. Build. Mater. 188, 737-746. https://doi.org/10.1016/j.conbuildmat.2018.08.154

Yang, Y.; Deng, Y.; Li, X. (2019) Uniaxial compression mechanical properties and fracture characteristics of brucite fiber reinforced cement-based composites. Compos. Struct. 212, 148-158. https://doi.org/10.1016/j.compstruct.2019.01.030

Pan, J.; Cai, J.; Ma, H.; Leung, C.K.Y. (2018) Development of multiscale fiber-reinforced engineered cementitious composites with pva fiber and CaCO3 whisker. ASCE J. Mater. Civ. Eng. 30 [6], 40181066. https://doi.org/10.1061/(ASCE)MT.1943-5533.0002305

Li, L.; Li, Z.; Cao, M.; Tang, Y.; Zhang, Z. (2021) Nanoindentation and porosity fractal dimension of calcium carbonate whisker reinforced cement paste after elevated temperatures (up to 900ºC). Fractals. 29 [2], 2140001. https://doi.org/10.1142/S0218348X21400016

Wang, B.; Han, Y.; Liu, S. (2013) Effect of highly dispersed carbon nanotubes on the flexural toughness of cement-based composites. Constr. Build. Mater. 46, 8-12. https://doi.org/10.1016/j.conbuildmat.2013.04.014

Metaxa, Z.S.; Konsta-Gdoutos, M.S.; Shah, S.P. (2013) Carbon nanofiber cementitious composites. Effect of debulking procedure on dispersion and reinforcing efficiency. Cem. Concr. Compos. 36, 25-32. https://doi.org/10.1016/j.cemconcomp.2012.10.009

Li, L.; Cao, M.; Yin, H. (2019) Comparative roles between aragonite and calcite calcium carbonate whiskers in the hydration and strength of cement paste. Cem. Concr. Compos. 104, 103350. https://doi.org/10.1016/j.cemconcomp.2019.103350

Li, L.; Xie, C.; Cao, M.; Zhou, X.; Li, Z. (2021) Synergistic effect between CaCO3 whisker and steel-pva fibre cocktail in cement-based material at elevated temperature. ASCE J. Mater. Civ. Eng. https://doi.org/10.1061/(ASCE)MT.1943-5533.0004103

Khan, M.; Cao, M.; Ali, M. (2018) Effect of basalt fibers on mechanical properties of calcium carbonate whisker-steel fiber reinforced concrete. Constr. Build. Mater. 192, 742-753. https://doi.org/10.1016/j.conbuildmat.2018.10.159

Wille, K.; El-Tawil, S.; Naaman, A.E. (2014) Properties of strain hardening ultra high performance fiber reinforced concrete (UHP-FRC) under direct tensile loading. Cem. Concr. Compos. 48, 53-66. https://doi.org/10.1016/j.cemconcomp.2013.12.015

Park, S.H.; Kim, D.J.; Ryu, G.S.; Koh, K.T. (2012) Tensile behavior of ultra high performance hybrid fiber reinforced concrete. Cem. Concr. Compos. 34 [2], 172-184. https://doi.org/10.1016/j.cemconcomp.2011.09.009

Mansour, M.Y.; Hsu, T.T.C.; Mo, Y.L. (2009) Constitutive relations of cracked reinforced concrete with steel fibers. ACI Special Publication. 265, 101-122. Retrieved from https://www.concrete.org/publications/internationalconcreteabstractsportal?m=details&i=51663292.

Lu, C.; Leung, C.K.Y.; Li, V.C. (2017) Numerical model on the stress field and multiple cracking behavior of Engineered Cementitious Composites (ECC). Constr. Build. Mater. 133, 118-127. https://doi.org/10.1016/j.conbuildmat.2016.12.033

Cao, M.; Li, L.; Xu, L. (2017) Relations between rheological and mechanical properties of fiber reinforced mortar. Comput. Concr. 20 [4], 449-459.

Li, V.C.; Kong, H.J.; Chan, Y.W. (1998) Development of self-compacting engineered cementitious composites. J. Cem. Concr. Compos. 25 [2], 301-309.

Li, Q.; Gao, X.; Xu, S. (2016) Multiple effects of nano-SiO2 and hybrid fibers on properties of high toughness fiber reinforced cementitious composites with high-volume fly ash. Cem. Concr. Compos. 72, 201-212. https://doi.org/10.1016/j.cemconcomp.2016.05.011

Cao, M.; Li, L.; Yin, H.; Ming, X. (2019) Microstructure and strength of calcium carbonate (CaCO3) whisker reinforced cement paste after exposed to high temperatures. Fire Technol. 55 [6], 1983-2003. https://doi.org/10.1007/s10694-019-00839-3

Yang, Y.; Fu, S.; Li, X. (2017) Mechanical attributes of uniaxial compression for calcium carbonate whisker reinforced oil well cement pastes. Adv. Mater. Sci. Eng. 2017, 2939057. https://doi.org/10.1155/2017/2939057

Xu, L.; Deng, F.; Chi, Y. (2017) Nano-mechanical behavior of the interfacial transition zone between steel-polypropylene fiber and cement paste. Constr. Build. Mater. 145, 619-638. https://doi.org/10.1016/j.conbuildmat.2017.04.035