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Abstrakty
In this study, strain hardened cementitious composite is developed by systematically incorporating fibers of two different length scales, viz., PVA fibers (micro-fibers) and CNTs (nano-fibers) to improve the load transfer and crack formation mechanism at their corresponding scales. At first, the influence of individual fibers on the tension associated (axial tension-, fracture- and flexure-) properties is investigated. Then, the composite is developed using hybrid fibers with appropriate dosage to cater the desired performance. The tensile strength, stiffness, strain carrying capacity and fracture energy of the developed composite is found to be improved by almost 2 times, 3 times, 220 times and 130 times respectively to that of the original cement composite. The outstanding performance of the developed composite is resulted from the effective crack bridging and preferred load transfer in micro-scale due to incorporation of (a meagre amount of) hetero fibers of distinctly different length scales. In order to investigate the fracture and crack propagation phenomenon of the developed cementitious composite, Digital Image Correlation (DIC) technique is also employed. The findings of this study will lead towards development of multi-performance cementitious composite (MPCC) by tailoring the material to attain the desired level of strength, stiffness and ductility.
Czasopismo
Rocznik
Tom
Strony
348--359
Opis fizyczny
Bibliogr. 29 poz., rys., tab., wykr.
Twórcy
autor
- Academy of Scientific and Innovative Research (AcSIR), INDIA
- CSIR-Structural Engineering Research Centre, CSIR Campus, Taramani, Chennai, 600113, INDIA
autor
- Academy of Scientific and Innovative Research (AcSIR), INDIA
- CSIR-Structural Engineering Research Centre, CSIR Campus, Taramani, Chennai, 600113, INDIA
Bibliografia
- [1] B. Nematollahi, R. Ranade, J. Sanjayan, S. Ramakrishnan, Thermal and mechanical properties of sustainable lightweight strain hardening geopolymer composites, Arch. Civ. Mech. Eng. 17 (1) (2017) 55–64.
- [2] V.C. Li, S. Wang, C. Wu, Tensile strain-hardening behavior or polyvinyl alcohol engineered cementitious composite (PVAECC), ACI Mater. J. 98 (6) (2001) 483–492.
- [3] R. Ranade, V.C. Li, M.D. Stults, T.S. Rushing, J. Roth, W.F. Heard, Micromechanics of high-strength, high-ductility concrete, ACI Mater. J. 110 (4) (2013) 375–384.
- [4] K.-Q. Yu, J.-T. Yu, J.-G. Dai, Z.-D. Lu, S.P. Shah, Development of ultra-high performance engineered cementitious composites using polyethylene (PE) fibers, Constr. Build. Mater. 158 (2018) 217–227.
- [5] H. Liu, Q. Zhang, C. Gu, H. Su, V.C. Li, Influence of microcracking on the permeability of engineered cementitious composites, Cem. Concr. Compos. 72 (2016) 104–113.
- [6] Z. Lu, A. Hanif, C. Lu, G. Sun, Y. Cheng, Z. Li, Thermal, mechanical, and surface properties of polyvinyl alcohol (PVA) polymer modified cementitious composites for sustainable development, J. Appl. Polym. Sci. (2017).
- [7] J. Katzer, Impact and dynamic resistance of SFRCC modified by varied superplasticizers, Arch. Civ. Mech. Eng. 11 (1) (2011) 103–113.
- [8] D.Y. Yoo, S. Kim, G.J. Park, J.J. Park, S.W. Kim, Effects of fiber shape, aspect ratio, and volume fraction on flexural behavior of ultra-high-performance fiber-reinforced cement composites, Compos. Struct. 174 (2017) 375–388.
- [9] A.-R.S. Al-Majidi, M.H. Lampropoulos, A.P. Cundy, A.B. Tsioulou, A novel corrosion resistant repair technique for existing reinforced concrete (RC) elements using polyvinyl alcohol fibre reinforced geopolymer concrete (PVAFRGC), Constr. Build. Mater. 164 (2018) 603–619.
- [10] X. Li, J. Wang, Y. Bao, G. Chen, Cyclic behavior of damaged reinforced concrete columns repaired with high-performance fiber-reinforced cementitious composite, Eng. Struct. 136 (2017) 26–35.
- [11] L. Sui, et al., Effect of engineered cementitious composite on the bond behavior between fiber-reinforced polymer and concrete, Compos. Struct. 184 (2018) 775–788.
- [12] M.F. Yu, O. Lourie, M.J. Dyer, K. Moloni, T.F. Kelly, R.S. Ruoff, Strength and breaking mechanism of multiwalled carbon nanotubes under tensile load, Science (80) 287 (5453) (2000) 637–640.
- [13] B. Zou, S.J. Chen, A.H. Korayem, F. Collins, C.M. Wang, W.H. Duan, Effect of ultrasonication energy on engineering properties of carbon nanotube reinforced cement pastes, Carbon N.Y. 85 (2015) 212–220.
- [14] T. Manzur, N. Yazdani, Optimum mix ratio for carbon nanotubes in cement mortar, KSCE J. Civ. Eng. 19 (5) (2015) 1405–1412.
- [15] P.S. Kang, S.T. Seo, The characteristics of CNT/cement composites with acid-treated MWCNTs, Adv. Mater. Sci. Eng. 2015 (2015) 308725.
- [16] I.K. Tragazikis, K.G. Dassios, P.T. Dalla, D.A. Exarchos, Acoustic emission investigation of the effect of graphene on the fracture behavior of cement mortars, Eng. Fract. Mech. (2018).
- [17] P. Stynoski, P. Mondal, C. Marsh, Effects of silica additives on fracture properties of carbon nanotube and carbon fiber reinforced Portland cement mortar, Cem. Concr. Compos. 55 (2015) 232–240.
- [18] B.H.Y.S. Yu, Transport properties of carbon-nanotube/cement composites, J. Mater. Eng. Perform. 22 (1) (2013) 184–189.
- [19] O.J. Zhang, L. Han, B. Ouyang, J. Yu, X. Sun, Multifunctionality of cement based composite with electrostatic self-assembled CNT/NCB composite filler, Arch. Civ. Mech. Eng. 7 (2) (2017) 354–364.
- [20] C. Zhang, M. Cao, Fiber synergy in multi-scale fiberreinforced cementitious composites, J. Reinf. Plast. Compos. 33 (9) (May 2014) 862–874.
- [21] Y. Yang, Y. Deng, Mechanical properties of hybrid short fibers reinforced oil well cement by polyester fiber and calcium carbonate whisker, Constr. Build. Mater. 182 (2018) 258–272.
- [22] L.A. Sbia, A. Peyvandi, P. Soroushian, A.M. Balachandra, Optimization of ultra-high-performance concrete with nanoand micro-scale reinforcement, Cogent Eng. 1 (1) (Dec 2014).
- [23] W. Meng, K.H. Khayat, Mechanical properties of ultra-highperformance concrete enhanced with graphite nanoplatelets and carbon nanofibers, Compos. B: Eng. 107 (2016) 113–122.
- [24] Z.S. Metaxa Konsta-Gdoutos, M.S. Shah, Crack free concrete made with nanofiber reinforcement, Dev. Res. Agenda Transp. Infrastruct. Preserv. Renew. Conf. (2009).
- [25] A. Alshaghel, S. Parveen, S. Rana, R. Fangueiro, Effect of multiscale reinforcement on the mechanical properties and microstructure of microcrystalline cellulose–carbon nanotube reinforced cementitious composites, Compos. B: Eng. 49 (2018) 122–134.
- [26] S. Alrekabi, A.B. Cundy, A. Lampropoulos, R.L.D. Whitby, I. Savina, Mechanical performance of novel cement-based composites prepared with nano-fibres, and hybrid nanoand micro-fibres, Compos. Struct. 178 (2017) 145–156.
- [27] S. Jiang, et al., Comparison of compressive strength and electrical resistivity of cementitious composites with different nano- and micro-fillers, Arch. Civ. Mech. Eng. 18 (1) (2018) 60–68.
- [28] Z. Lu, A. Hanif, G. Sun, R. Liang, P. Parthasarathy, Z. Li, Highly dispersed graphene oxide electrodeposited carbon fiber reinforced cement-based materials with enhanced mechanical properties, Cem. Concr. Compos. 87 (Mar 2018) 220–228.
- [29] B.S. Sindu, S. Sasmal, Properties of carbon nanotube reinforced cement composite synthesized using different types of surfactants, Constr. Build. Mater. 155 (2017).
Typ dokumentu
Bibliografia
Identyfikator YADDA
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