Benefits of Geopolymer Concrete-filled FRP Beams and it Fl its Flexurall Behaviour B h i Presenter Wahid Ferdous PhD Student U i University it off S Southern th Q Queensland l d Authors: Wahid Ferdous, CEEFC, University of Southern Queensland, Toowoomba 4350, Australia Allan Manalo, CEEFC, University of Southern Queensland, Toowoomba 4350, Australia Amar Khennane, School of Engineering and Information Technology, University of New South Wales, Canberra, ACT 2600, Australia Obada Kayali, Kayali School of Engineering and Information Technology, Technology University of New South Wales, Wales Canberra Canberra, ACT 2600, 2600 Australia Composites Australia and CRC – ACS Conference 2014 Overview • Introduction • Advantages of Composite over Traditional Materials • Experimental Investigation • Numerical Simulation • Results • Conclusions Composites Australia and CRC – ACS Conference 2014 Introduction Advantages of Materials Experimental Numerical Results Conclusions Introduction Traditional Cement Concrete Fly ash based Gepolymer Concrete Fly-ash Steel FRP FRP + Geopolymer Concrete = A Potential Solution of Many Structural Problems Composites Australia and CRC – ACS Conference 2014 Introduction Advantages of Materials Experimental Numerical Geopolymer Concrete vs 10 to 30% Cheaper Economic Benefits Rangan et al. (2005) 84% CO2 Reduction Environmental Benefits Gourley and Johnson (2005) Superior Performance Acid Resistance Bakharev (2005) Excellent Resistance Resistance to Sulphate Attack Wallah et al. (2005) Significantly Less Vulnerable Prevention of Alkalisilica Reaction Kupwade Patil and Allouche (2011) Kupwade-Patil Strength Gained Rapidly Early Strength Gain Ferdous et al. (2013) Good Tensile Strength Tensile Strength Hardjito and Rangan (2005) Composites Australia and CRC – ACS Conference 2014 Results Conclusions Cement Concrete Introduction Advantages of Materials Experimental Numerical Results Conclusions Durability of FRP Composite Acid Effect Not very detrimental (P. B. Adams, 1984) Salt Effect Excellent resistance (FRP Composites, 2005) Alkaline Effect Alkali resistant glass fibre can improve the performance (L. A. Bisby, 2006) Composites Australia and CRC – ACS Conference 2014 Introduction Advantages of Materials Experimental Numerical Results Conclusions Beam Casting Materials of the Beam • GFRP pultruded profile • Fly ash based geopolymer concrete Fly ash based geopolymer concrete Composites Australia and CRC – ACS Conference 2014 Introduction Advantages of Materials Experimental Numerical Beam Testing 1440 mm Schematic test setup Beam cross section Composites Australia and CRC – ACS Conference 2014 Results Conclusions Introduction Advantages of Materials Experimental Numerical Results Conclusions Beam Testing Beam Failure Mode Beam Failure Mode • Tensile cracking in concrete at 12‐15 kN • Compressive failure in concrete at 90, 98 and 95 kN • After concrete failure, compressive buckling in pultruded p g p composite happened p pp that leading to splitting Composites Australia and CRC – ACS Conference 2014 Introduction Advantages of Materials Experimental Numerical Results Conclusions Numerical Analysis SSoftware: f Analysis: Element: SStrand7 Finite Element Package d i i l k Nonlinear Static Hexa20 Brick Element Pultruded composite Geopolymer concrete N li Nonlinear material model t i l d l Composites Australia and CRC – ACS Conference 2014 Introduction Advantages of Materials Experimental Numerical Results Numerical Analysis In-filled concrete crushing at 95 kN load Composites Australia and CRC – ACS Conference 2014 Conclusions Introduction Advantages of Materials Experimental Numerical Results Results Load-displacement behaviour of composite beam Composites Australia and CRC – ACS Conference 2014 Conclusions Introduction Advantages of Materials Experimental Numerical Results Conclusions Conclusions • Benefits of geopolymer concrete and FRP composites are highlighted • Numerical model is analysed y which can ppredict the behaviour of the beam • The geopolymer concrete filled pultruded beam have the potential to be used in many man civil ci il infrastructures infrastr ct res Composites Australia and CRC – ACS Conference 2014 Thanks Much Composites Australia and CRC – ACS Conference 2014
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