An Analysis of the Shear Strength and Rupture Modulus of Polyolefin-Fiber Reinforced Concrete at Different Temperatures

Document Type : Original Article

Authors

1 Department of Structural Engineering, Vali Asr University, Rafsanjan, Iran.

2 Department of Civil Engineering, Vali Asr University, Rafsanjan, Iran.

3 Department of Structural Engineering, Malayer University, Malayer, Iran.

Abstract

Structural engineers are generally aware of the intrinsic safety properties of concrete exposed to fire (non-flammability at high temperatures). However, the tendency of concrete for spalling at high temperatures is a significant defect, and recently many researchers have conducted studies on this issue. One of the primary objectives of this study is to assess the shear strength and modulus of rupture of concrete reinforced with different percentages of modified polyolefin synthetic fibers at different temperatures and to compare the results with the preliminary design. The other objective of the present study is to compare the behaviors of synthetic fiber concrete under the effect of the furnace temperature and direct fire. After adding fibers (1.5 volumetric percentage), a 29% increase in the tensile strength and a 56% increase in the modulus of rupture (the stress corresponding to the development of the first crack) were observed. Considering the fiber concrete results in the experimental temperature condition, it can put on an acceptable strength performance. However, at temperatures equal to or greater than 400 , the fibers lose their role in compensating the low tensile strength of concrete due to oxidation, causing porosity in the concrete and reducing its strength.

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Main Subjects


[1] Noushini A, Hastings M, Castel A, Aslani F. Mechanical and flexural performance of synthetic fibre reinforced geopolymer concrete. Construction and Building Materials. 2018 Oct 20;186:454-75. ‏[View at Google Scholar] ; [View at Publisher].
[2] James I. Daniel etal. Fiber Reinforced Concrete. US; ACI: 2002. ACI 544.1R-96.  [View at Publisher].
[3] James I. Daniel etal. Guide for Reinforced Concrete. US; ACI: 2008. ACI 544.3R-08. [View at Publisher].
[4] Celik A, Yilmaz K, Canpolat O, Al-Mashhadani MM, Aygörmez Y, Uysal M. High-temperature behavior and mechanical characteristics of boron waste additive metakaolin based geopolymer composites reinforced with synthetic fibers. Construction and Building Materials. 2018 Oct 30;187:1190-203. ‏[View at Google Scholar] ; [View at Publisher].
[5] Aygörmez Y, Canpolat O, Al-mashhadani MM, Uysal M. Elevated temperature, freezing-thawing and wetting-drying effects on polypropylene fiber reinforced metakaolin based geopolymer composites. Construction and Building Materials. 2020 Feb 28;235:117502.‏[View at Google Scholar] ; [View at Publisher].
[6] Sukontasukkul P, Pongsopha P, Chindaprasirt P, Songpiriyakij S. Flexural performance and toughness of hybrid steel and polypropylene fibre reinforced geopolymer. Construction and Building Materials. 2018 Feb 10;161:37-44. ‏[View at Google Scholar] ; [View at Publisher].
[7] Amancio FA, de Carvalho Rafael MF, de Oliveira Dias AR, Cabral AE. Behavior of concrete reinforced with polypropylene fiber exposed to high temperatures. Procedia Structural Integrity. 2018 Jan 1;11:91-8. ‏[View at Google Scholar] ; [View at Publisher].
[8] Yermak N, Pliya P, Beaucour AL, Simon A, Noumowé A. Influence of steel and/or polypropylene fibres on the behaviour of concrete at high temperature: Spalling, transfer and mechanical properties. Construction and Building Materials. 2017 Feb 1;132:240-50. ‏[View at Google Scholar] ; [View at Publisher].
[9]Serrano R, Cobo A, Prieto MI, de las Nieves González M. Analysis of fire resistance of concrete with polypropylene or steel fibers. Construction and building materials. 2016 Sep 30;122:302-9. ‏[View at Google Scholar] ; [View at Publisher].
[10] Li Y, Tan KH, Yang EH. Synergistic effects of hybrid polypropylene and steel fibers on explosive spalling prevention of ultra-high performance concrete at elevated temperature. Cement and Concrete Composites. 2019 Feb 1;96:174-81. ‏[View at Google Scholar] ; [View at Publisher].
[11] Abdul-Rahman M, Al-Attar AA, Hamada HM, Tayeh B. Microstructure and structural analysis of polypropylene fibre reinforced reactive powder concrete beams exposed to elevated temperature. Journal of Building Engineering. 2020 May 1;29:101167. ‏[View at Google Scholar] ; [View at Publisher].
[12] Eidan J, Rasoolan I, Rezaeian A, Poorveis D. Residual mechanical properties of polypropylene fiber-reinforced concrete after heating. Construction and Building Materials. 2019 Feb 20;198:195-206. [View at Google Scholar] ; [View at Publisher].
[13] Abaeian R, Behbahani HP, Moslem SJ. Effects of high temperatures on mechanical behavior of high strength concrete reinforced with high performance synthetic macro polypropylene (HPP) fibres. Construction and Building Materials. 2018 Mar 20;165:631-8. ‏[View at Google Scholar] ; [View at Publisher].
[14] Ding Y, Zhang C, Cao M, Zhang Y, Azevedo C. Influence of different fibers on the change of pore pressure of self-consolidating concrete exposed to fire. Construction and Building Materials. 2016 Jun 15;113:456-69.‏[View at Google Scholar] ; [View at Publisher].
[15] Maluk C, Bisby L, Terrasi GP. Effects of polypropylene fibre type and dose on the propensity for heat-induced concrete spalling. Engineering Structures. 2017 Jun 15;141:584-95. ‏[View at Google Scholar] ; [View at Publisher].
[16] Park JJ, Yoo DY, Kim S, Kim SW. Benefits of synthetic fibers on the residual mechanical performance of UHPFRC after exposure to ISO standard fire. Cement and Concrete Composites. 2019 Nov 1;104:103401. ‏[View at Google Scholar] ; [View at Publisher].
[17] Abid M, Hou X, Zheng W, Hussain RR, Cao S, Lv Z. Creep behavior of steel fiber reinforced reactive powder concrete at high temperature. Construction and Building Materials. 2019 Apr 30;205:321-31.‏[View at Google Scholar] ; [View at Publisher].
[18] Wang J, Dai Q, Si R, Guo S. Mechanical, durability, and microstructural properties of macro synthetic polypropylene (PP) fiber-reinforced rubber concrete. Journal of Cleaner Production. 2019 Oct 10;234:1351-64. ‏[View at Google Scholar] ; [View at Publisher].
[19] Folino P, Ripani M, Xargay H, Rocca N. Comprehensive analysis of Fiber Reinforced Concrete beams with conventional reinforcement. Engineering Structures. 2020 Jan 1;202:109862. ‏[View at Google Scholar] ; [View at Publisher].
[20] Ríos JD, Cifuentes H, Leiva C, Seitl S. Analysis of the mechanical and fracture behavior of heated ultra-high-performance fiber-reinforced concrete by X-ray computed tomography. Cement and Concrete Research. 2019 May 1;119:77-88. ‏[View at Google Scholar] ; [View at Publisher].
[21] Chen GM, Yang H, Lin CJ, Chen JF, He YH, Zhang HZ. Fracture behaviour of steel fibre reinforced recycled aggregate concrete after exposure to elevated temperatures. Construction and Building Materials. 2016 Dec 15;128:272-86. ‏[View at Google Scholar] ; [View at Publisher].
[22] Mai, y. W. Andonian, R. Cotterell, B., Thermal degration of polypropylene fibers in cement composites, International Jornal of Composiets, 3(3), 1980 August, 149-55. ‏[View at Google Scholar] ; [View at Publisher].
[23] Lau A, Anson M. Effect of high temperatures on high performance steel fibre reinforced concrete. Cement and concrete research. 2006 Sep 1;36(9):1698-707. ‏[View at Google Scholar] ; [View at Publisher].
[24] ASTM. C150 / C150M-19a. Standard Specification for Portland Cement [Internet]. West Conshohocken; PA: 2017. Available from: www.astm.org. [View at Publisher].
[25] ASTM. C496 / C496M-17. Standard Test Method for Splitting Tensile Strength of Cylindrical Concrete Specimens [Internet]. West Conshohocken; PA: 2017. Available from: www.astm.org. [View at Publisher].
[26] ASTM. C78 / C78M-18. Standard Test Method for Flexural Strength of Concrete (Using Simple Beam with Third-Point Loading) [Internet]. West Conshohocken; PA: 2018. Available from: www.astm.org. [View at Publisher].
[27] Singh AP, Singhal D. Permeability of steel fibre reinforced concrete influence of fibre parameters. Procedia Engineering. 2011 Jan 1;14:2823-9. ‏[View at Google Scholar] ; [View at Publisher].