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Geopolymer composites containing woven cotton fabric (0–8.3 wt%) were fabricated using the hand lay-up technique, and were exposed to elevated temperatures of 200 ℃, 400 ℃, 600 ℃, 800 ℃ and 1000 ℃. With an increase in temperature, the geopolymer composites exhibited a reduction in compressive strength, flexural strength and fracture toughness. When heated above 600 ℃, the composites exhibited a significant reduction in mechanical properties. They also exhibited brittle behavior due to severe degradation of cotton fibres and the creation of additional porosity in the composites. Microstructural images verified the existence of voids and small channels in the composites due to fibre degradation.


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Mechanical properties of cotton fabric reinforced geopolymer composites at 200–1000 ℃

Show Author's information Thamer ALOMAYRIa,bLes VICKERSaFaiz U. A. SHAIKHcIt-Meng LOWa( )
Department of Imaging & Applied Physics, Curtin University, GPO Box U1987, Perth, WA 6845, Australia
Department of Physics, Umm Al-Qura University, Makkah 21955, Saudi Arabia
Department of Civil Engineering, Curtin University, GPO Box U1987, Perth, WA 6845, Australia

Abstract

Geopolymer composites containing woven cotton fabric (0–8.3 wt%) were fabricated using the hand lay-up technique, and were exposed to elevated temperatures of 200 ℃, 400 ℃, 600 ℃, 800 ℃ and 1000 ℃. With an increase in temperature, the geopolymer composites exhibited a reduction in compressive strength, flexural strength and fracture toughness. When heated above 600 ℃, the composites exhibited a significant reduction in mechanical properties. They also exhibited brittle behavior due to severe degradation of cotton fibres and the creation of additional porosity in the composites. Microstructural images verified the existence of voids and small channels in the composites due to fibre degradation.

Keywords:

geopolymer composites, microstructures, mechanical properties, fracture toughness
Received: 09 April 2014 Revised: 15 May 2014 Accepted: 28 May 2014 Published: 02 September 2014 Issue date: September 2014
References(52)
[1]
Shaikh FUA. Deflection hardening behaviour of short fibre reinforced fly ash based geopolymer composites. Mater Design 2013, 50:674-682.
[2]
Shaikh FUA. Review of mechanical properties of short fibre reinforced geopolymer composites. Constr Build Mater 2013, 43:37-49.
[3]
Davidovits J. Geopolymers. J Therm Anal 1991, 37:1633-1656.
[4]
Pernica D, Reis PNB, Ferreira JAM, et al. Effect of test conditions on the bending strength of a geopolymer-reinforced composite. J Mater Sci 2010, 45:744-749.
[5]
Barbosa VFF, MacKenzie KJD. Synthesis and thermal behaviour of potassium sialate geopolymers. Mater Lett 2003, 57:1477-1482.
[6]
Rickard WDA, Temuujin J, van Riessen A. Thermal analysis of geopolymer pastes synthesised from five fly ashes of variable composition. J Non-Cryst Solids 2012, 358:1830-1839.
[7]
Rickard WDA, Williams R, Temuujin J, et al. Assessing the suitability of three Australian fly ashes as an aluminosilicate source for geopolymers in high temperature applications. Mat Sci Eng A 2011, 528:3390-3397.
[8]
Tchakoute HK, Elimbi A, Yanne E, et al. Utilization of volcanic ashes for the production of geopolymers cured at ambient temperature. Cement Concrete Comp 2013, 38:75-81.
[9]
Zhao Q, Nair B, Rahimian T, et al. Novel geopolymer based composites with enhanced ductility. J Mater Sci 2007, 42:3131-3137.
[10]
Bernal S, De Gutierrez R, Delvasto S, et al. Performance of an alkali-activated slag concrete reinforced with steel fibers. Constr Build Mater 2010, 24:208-214.
[11]
Katakalos K, Papakonstantinou C. Fatigue of reinforced concrete beams strengthened with steel-reinforced inorganic polymers. J Compos Constr 2009, 13:103-112.
[12]
Vaidya S, Allouche EN. Strain sensing of carbon fiber reinforced geopolymer concrete. Mater Struct 2011, 44:1467-1475.
[13]
Zhang Z, Yao X, Zhu H, et al. Preparation and mechanical properties of polypropylene fiber reinforced calcined kaolin-fly ash based geopolymer. J Cent South Univ T 2009, 16:49-52.
[14]
Zhang Y, Sun W, Li Z. Impact behavior and microstructural characteristics of PVA fiber reinforced fly ash-geopolymer boards prepared by extrusion technique. J Mater Sci 2006, 41:2787-2794.
[15]
Zhang Y, Sun W, Li Z, et al. Impact properties of geopolymer based extrudates incorporated with fly ash and PVA short fiber. Constr Build Mater 2008, 22:370-383.
[16]
Dhakal HN, Zhang ZY, Richardson MOW. Effect of water absorption on the mechanical properties of hemp fibre reinforced unsaturated polyester composites. Compos Sci Technol 2007, 67:1674-1683.
[17]
Low IM, McGrath M, Lawrence D, et al. Mechanical and fracture properties of cellulose-fibre-reinforced epoxy laminates. Composites Part A 2007, 38:963-974.
[18]
Ramakrishna G, Sundararajan T. Impact strength of a few natural fibre reinforced cement mortar slabs: A comparative study. Cement Concrete Comp 2005, 27:547-553.
[19]
Reis JML. Fracture and flexural characterization of natural fiber-reinforced polymer concrete. Constr Build Mater 2006, 20:673-678.
[20]
Mansur MA, Aziz MA. Study of bamboo-mesh reinforced cement composites. International Journal of Cement Composites and Lightweight Concrete 1983, 5:165-171.
[21]
Mansur MA, Aziz MA. A study of jute fibre reinforced cement composites. International Journal of Cement Composites and Lightweight Concrete 1982, 4:75-82.
[22]
Chakraborty S, Kundu SP, Roy A, et al. Improvement of the mechanical properties of jute fibre reinforced cement mortar: A statistical approach. Constr Build Mater 2013, 38:776-784.
[23]
Savastano Jr H, Warden PG, Coutts RSP. Microstructure and mechanical properties of waste fibre–cement composites. Cement Concrete Comp 2005, 27:583-592.
[24]
Ali M, Liu A, Sou H, et al. Mechanical and dynamic properties of coconut fibre reinforced concrete. Constr Build Mater 2012, 30:814-825.
[25]
Yan L, Chouw N. Experimental study of flax FRP tube encased coir fibre reinforced concrete composite column. Constr Build Mater 2013, 40:1118-1127.
[26]
Sedan D, Pagnoux C, Smith A, et al. Mechanical properties of hemp fibre reinforced cement: Influence of the fibre/matrix interaction. J Eur Ceram Soc 2008, 28:183-192.
[27]
Hakamy A, Shaikh FUA, Low IM. Microstructures and mechanical properties of hemp fabric reinforced organoclay–cement nanocomposites. Constr Build Mater 2013, 49:298-307.
[28]
Alzeer M, MacKenzie KJD. Synthesis and mechanical properties of new fibre-reinforced composites of inorganic polymers with natural wool fibres. J Mater Sci 2012, 47:6958-6965.
[29]
Alzeer M, MacKenzie K. Synthesis and mechanical properties of novel composites of inorganic polymers (geopolymers) with unidirectional natural flax fibres (phormium tenax). Appl Clay Sci 2013, 75–76:148-152.
[30]
Teixeira-Pinto A, Varela B, Shrotri K, et al. Geopolymer-jute composite: A novel environmentally friendly composite with fire resistant properties. Developments in Porous, Biological and Geopolymer Ceramics: Ceramic Engineering and Science Proceedings 2009, 28: 337-346.
[31]
Al Bakri AMM, Izzat AM, Faheem MTM, et al. Feasibility of producing wood fibre-reinforced geopolymer composites (WFRGC). Adv Mat Res 2013, 626:918-925.
[32]
Cheng TW, Chiu JP. Fire-resistant geopolymer produced by granulated blast furnace slag. Miner Eng 2003, 16:205-210.
[33]
Kalifa P, Chéné G, Gallé C. High-temperature behaviour of HPC with polypropylene fibers: From spalling to microstructure. Cement Concrete Res 2001, 31:1487-1499.
[34]
Xiao J, Falkner H. On residual strength of high-performance concrete with and without polypropylene fibres at elevated temperatures. Fire Safety J 2006, 41:115-121.
[35]
ASTM International. ASTM C20-00 Standard test methods for apparent porosity, water absorption, apparent specific gravity, and bulk density of burned refractory brick and shapes by boiling water. 2010.
[36]
ASTM International. ASTM C109/C109M-12 Standard test method for compressive strength of hydraulic cement mortars (using 2-in. or [50-mm] cube specimens). 2013.
[37]
Julkapli NM, Akil HM. Thermal properties of kenaf-filled chitosan biocomposites. Polym-Plast Technol 2010, 49:147-153.
[38]
Ray D, Sarkar BK, Basak RK, et al. Study of the thermal behavior of alkali-treated jute fibres. J Appl Polym Sci 2002, 85:2594-2599.
[39]
Huda MS, Drzal LT, Misra M, et al. Wood-fiber-reinforced poly(lactic acid) composites: Evaluation of the physicomechanical and morphological properties. J Appl Polym Sci 2006, 102:4856-4869.
[40]
Babu KF, Senthilkumar R, Noel M, et al. Polypyrrole microstructure deposited by chemical and electrochemical methods on cotton fabrics. Synthetic Met 2009, 159:1353-1358.
[41]
Lin T, Jia D, He P, et al. Thermal-mechanical properties of short carbon fiber reinforced geopolymer matrix composites subjected to thermal load. J Cent South Univ T 2009, 16:881-886.
[42]
Toledo Filho RD, Ghavami K, Sanjuán M, et al. Free, restrained and drying shrinkage of cement mortar composites reinforced with vegetable fibres. Cement Concrete Comp 2005, 27:537-546.
[43]
Rickard WDA, van Riessen A, Walls P. Thermal character of geopolymers synthesized from class F fly ash containing high concentrations of iron and α-quartz. Int J Appl Ceram Tec 2010, 7:81-88.
[44]
Short NR, Purkiss JA, Guise SE. Assessment of fire damaged concrete using colour image analysis. Constr Build Mater 2001, 15:9-15.
[45]
Şahmaran M, Özbay E, Yücel H, et al. Effect of fly ash and PVA fiber on microstructural damage and residual properties of engineered cementitious composites exposed to high temperatures. J Mater Civ Eng 2011, 23:1735-1745.
[46]
Khaliq W, Kodur V. Thermal and mechanical properties of fiber reinforced high performance self-consolidating concrete at elevated temperatures. Cement Concrete Res 2011, 41:1112-1122.
[47]
Duxson P, Lukey GC, van Deventer JSJ. Physical evolution of Na-geopolymer derived from metakaolin up to 1000 ℃. J Mater Sci 2007, 42:3044-3054.
[48]
Noumowe A. Mechanical properties and microstructure of high strength concrete containing polypropylene fibres exposed to temperatures up to 200 ℃. Cement Concrete Res 2005, 35:2192-2198.
[49]
Uysal M, Tanyildizi H. Estimation of compressive strength of self compacting concrete containing polypropylene fiber and mineral additives exposed to high temperature using artificial neural network. Constr Build Mater 2012, 27:404-414.
[50]
Behnood A, Ghandehari M. Comparison of compressive and splitting tensile strength of high-strength concrete with and without polypropylene fibers heated to high temperatures. Fire Safety J 2009, 44:1015-1022.
[51]
Alamri H, Low IM. Microstructural, mechanical, and thermal characteristics of recycled cellulose fiber-halloysite-epoxy hybrid nanocomposites. Polym Composite 2012, 33:589-600.
[52]
Alhuthali A, Low IM, Dong C. Characterisation of the water absorption, mechanical and thermal properties of recycled cellulose fibre reinforced vinyl-ester eco-nanocomposites. Composites Part B 2012, 43:2772-2781.
Publication history
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Publication history

Received: 09 April 2014
Revised: 15 May 2014
Accepted: 28 May 2014
Published: 02 September 2014
Issue date: September 2014

Copyright

© The author(s) 2014

Acknowledgements

The authors would like to thank Ms. E. Miller for the assistance with SEM.

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