PSI - Issue 64

Shehroze Ali et al. / Procedia Structural Integrity 64 (2024) 1394–1401 Shehroze Ali et al. / Structural Integrity Procedia 00 (2019) 000 – 000

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4. Conclusions In this study, the fresh and hardened properties of slag/fly ash based geopolymer concrete (SFGC) were investigated by incorporating the glass fibre in the mix. Based on the experimental results presented in this study, it is concluded that the addition of glass fibre in the mix reduced the workability and density of SFGC. A slight reduction in the compressive strength was observed mainly due to the less efficient compaction of the fibre reinforced mix. However, the addition of glass fibre in SFGC resulted in significant improvement in the flexural strength of the concrete. Overall, the flexural strength of GF-SFGC was approximately 24% higher than the plain SFGC mix. Also, the addition of glass fibre improved the failure pattern of the specimens by arresting the cracks and holding the specimens even after failure. Acknowledgements The authors would like to thank the Australasian (iron & steel) Slag Association, Boral group of companies and Sika, Australia for providing ground granulated blast furnace slag, fly ash and superplasticizer used in this study, respectively. Also, the authors would like to thank the University of Wollongong, Australia and the technical staff members for their support to conduct this research. In addition, the first author would like to thank Higher Education Commission (HEC), Pakistan and the University of Wollongong, Australia for the financial support. References Ali, S., Sheikh, M.N., Sargeant M., Hadi M. N. S., 2020. Influence of polypropylene and glass fibers on AASF concrete, ACI Structural Journal , 117 (4), pp 183-192. Ali, S., Ahmad, J., Sheikh, M.N., Yu, T., Hadi, M.N.S. 2021. Analytical load-moment (PM) interaction diagrams of GFRP bar reinforced circular geopolymer concrete columns. Structures , 34 (2445-2454). AS (Australian Standard) 1012.3.1-14. 2014. Methods of testing concrete- Method 3.1: Determination of properties related to the consistency of concrete- Slump test, Sydney, NSW, Australia, 5 pp. AS (Australian Standard) 1012.9.1-14. 2014. Methods of testing concrete- Method 9: Determination of the compressive strength of concrete specimens, Sydney, NSW, Australia, 12 pp. AS (Australian Standard) 1012.11-14. 2014. Methods of testing concrete - Method 11: Determination of modulus of rupture, Sydney, NSW, Australia, 5 pp. AS (Australian Standard) 1012.12.1-14. 2014. Methods of testing concrete - Method 12.1: Determination of mass per unit volume of hardened concrete- Rapid measuring method, Sydney, NSW, Australia, 3 pp. ASTM (American Society for Testing and Materials) C618-19. 2019. Standard specification for coal fly ash and raw or calcined natural pozzolan for use as a mineral admixture in portland cement concrete, West Conshohocken, PA, US, 5 pp. Davidovits, J. 1991. Geopolymers: inorganic polymeric new materials. Journal of Thermal Analysis and calorimetry , 37 (8), pp.1633-1656. Domcrete Australia, 2020. Data sheet: AR glass fiber. http://domcrete. com.au/product/ar-glass-fiber (accessed 7 January, 2020). Farfan, J., Fasihi, M., Breyer, C. 2019. Trends in the global cement industry and opportunities for long-term sustainable CCU potential for Power-to-X. Journal of cleaner production , 217, pp.821-835. Farhan, N.A., Sheikh, M.N., Hadi, M.N.S. 2018. Engineering Properties of Ambient Cured Alkali-Activated Fly Ash – Slag Concrete Reinforced with Different Types of Steel Fiber. Journal of Materials in Civil Engineering , 30 (7), p.04018142. Foti, D. 2011. Preliminary analysis of concrete reinforced with waste bottles PET fibers. Construction and Building Materials , 25 (4), pp.1906 1915. Ghafoor, M. T., Ali, S., Imran, M. and Saeed, M. (2024) “Influence of Na OH concentration on Mechanical Properties of Fly Ash-Slag based Geopolymer Concrete”, Technical Journal, 3 (ICACEE) , pp. 43-49. https://tj.uettaxila.edu.pk/index.php/technical-journal/article/view/1875 (Accessed: 20June2024). Ganesh, C., Muthukannan, M. 2019. Investigation on the glass fiber reinforced geopolymer concrete made of M-sand. Journal of Materials and Engineering Structures , 6 (4), pp.501-512. Hadi, M.N.S, Farhan, N.A., Sheikh, M.N. 2017. Design of geopolymer concrete with GGBFS at ambient curing condition using Taguchi method. Construction and Building Materials , 140, pp.424-431. John, S.K., Nadir, Y. and Girija, K., 2021. Effect of source materials, additives on the mechanical properties and durability of fly ash and fly ash slag geopolymer mortar: A review. Construction and Building Materials , 280, p.122443. Ma, C.K., Awang, A.Z., Omar, W. 2018. Structural and material performance of geopolymer concrete: A review. Construction and Building Materials , 186, pp.90-102.