Experimental study of the effect of variations in geopolymer concrete composition on compressive strength and durability

Roventus Adiyamo; Karoline

Authors

Roventus Adiyamo Universitas Riau, Pekanbaru, Indonesia Author
Karoline Universitas Riau, Pekanbaru, Indonesia Author

Keywords:

Compressive strength, Durability, Experimental Study, Geopolymer Concrete, Variations

Abstract

This experimental study investigates the impact of compositional variations in geopolymer concrete on its compressive strength and durability. Geopolymer concrete, a sustainable alternative to traditional Portland cement concrete, is synthesized using aluminosilicate-rich industrial by-products such as fly ash and ground granulated blast furnace slag (GGBFS), activated with alkaline solutions. The research explores the effects of different ratios of fly ash to GGBFS, molarity levels of sodium hydroxide, and alkaline activator to binder ratios on mechanical and durability performance. A series of mix designs were prepared and cured under controlled conditions, with compressive strength tests conducted at 7, 14, and 28 days. Durability assessments included resistance to acid attack, water absorption, and sulfate resistance. The results revealed that increasing the GGBFS content and alkaline concentration significantly enhances early-age strength, while an optimal activator-to-binder ratio improves both strength and durability. However, excessive alkaline content negatively affects long-term durability. These findings provide valuable insights into the formulation of high-performance, environmentally friendly geopolymer concretes suitable for structural applications, contributing to the advancement of sustainable construction materials

References

Ahmad, S., Zaid, O., & Farooq, F. (2020). Durability of geopolymer concrete: A review. Construction and Building Materials, 246, 118415.

Aliabdo, A. A., Abd Elmoaty, A. E. M., & Emam, M. A. (2019). Factors affecting the mechanical properties of alkali-activated slag concrete. Construction and Building Materials, 197, 339–355.

Andrew, R. M. (2018). Global CO₂ emissions from cement production. Earth System Science Data, 10(1), 195–217.

Assi, L. N., Deaver, E., Ziehl, P., & Daito, M. (2018). Mechanical and durability characteristics of concrete based on Class F fly ash and slag. Construction and Building Materials, 112, 669–677.

ASTM C109/C109M-20b. (2020). Standard Test Method for Compressive Strength of Hydraulic Cement Mortars. ASTM International.

ASTM C642-13. (2013). Standard Test Method for Density, Absorption, and Voids in Hardened Concrete. ASTM International.

Bakharev, T. (2005). Durability of geopolymer materials in sodium and magnesium sulfate solutions. Cement and Concrete Research, 35(6), 1233–1246.

Bernal, S. A., Provis, J. L., Rose, V., & Mejía de Gutiérrez, R. (2011). Evolution of binder structure in sodium silicate-activated slag–metakaolin blends. Cement and Concrete Composites, 33(1), 46–54.

Chindaprasirt, P., & Rattanasak, U. (2021). Fly ash-based geopolymer concrete: A review of the compressive strength, setting time, and durability. Materials Today: Proceedings, 45, 4350–4356.

Davidovits, J. (2008). Geopolymer Chemistry and Applications (2nd ed.). Institut Géopolymère.

Duxson, P., Fernández-Jiménez, A., Provis, J. L., Lukey, G. C., Palomo, A., & van Deventer, J. S. J. (2007). Geopolymer technology: The current state of the art. Journal of Materials Science, 42(9), 2917–2933.

Hardjito, D., & Rangan, B. V. (2005). Development and properties of low-calcium fly ash-based geopolymer concrete. Research Report GC1, Curtin University of Technology.

Heah, C. Y., Kamarudin, H., Al Bakri, A. M. M., Binhussain, M., Luqman, M., Nizar, I. K., & Liew, Y. M. (2013). Effect of curing profile on kaolin-based geopolymers. Physics Procedia, 50, 305–311.

Huseien, G. F., Shah, K. W., Sam, A. R. M., & Aslani, F. (2019). A review on durability and mechanical properties of alkali-activated concrete: Challenges and opportunities. Construction and Building Materials, 235, 117490.

Islam, A., Alengaram, U. J., Zamin Jumaat, M., & Bashar, I. I. (2016). The development of compressive strength of ground granulated blast furnace slag-palm oil fuel ash-based geopolymer mortar. Materials & Design, 89, 614–624.

Joseph, B., & Mathew, G. (2012). Influence of aggregate content on the behavior of fly ash based geopolymer concrete. Scientia Iranica, 19(5), 1188–1194.

Khan, M. N. N., Hossain, K. M. A., & Lachemi, M. (2016). Performance of blended cement concrete in marine environment. Construction and Building Materials, 123, 928–936.

Kong, D. L. Y., & Sanjayan, J. G. (2010). Effect of elevated temperatures on geopolymer paste, mortar and concrete. Cement and Concrete Research, 40(2), 334–339.

Kumar, R., Kumar, S., & Mehrotra, S. P. (2010). Influence of granulated blast furnace slag on the reaction, structure, and properties of fly ash based geopolymer. Journal of Materials Science, 45, 607–615.

Mehta, A., & Siddique, R. (2016). Durability of low-calcium fly ash-based geopolymer concrete. Journal of Cleaner Production, 100, 243–252.

Olivia, M., & Nikraz, H. (2012). Properties of fly ash geopolymer concrete designed by Taguchi method. Materials & Design, 36, 191–198.

Palomo, A., Grutzeck, M. W., & Blanco, M. T. (1999). Alkali-activated fly ashes: A cement for the future. Cement and Concrete Research, 29(8), 1323–1329.

Provis, J. L., & van Deventer, J. S. J. (Eds.). (2014). Alkali Activated Materials: State-of-the-Art Report, RILEM TC 224-AAM. Springer.

Puertas, F., Palacios, M., Manzano, H., Dolado, J. S., Rico, A., & Rodríguez, J. (2011). A model for the C-A-S-H gel formed in alkali-activated slag cements. Journal of the European Ceramic Society, 31(12), 2043–2056.

Rangan, B. V. (2008). Fly ash-based geopolymer concrete. Proceedings of the International Conference on Geopolymer Concrete, Curtin University.

Rashad, A. M. (2013). A comprehensive overview of the properties of alkali-activated fly ash/slag concretes. Journal of Cleaner Production, 63, 353–370.

Sathonsaowaphak, A., Chindaprasirt, P., & Pimraksa, K. (2009). Workability and strength of lignite bottom ash geopolymer mortar. Journal of Hazardous Materials, 168(1), 44–50.

Shi, C., Krivenko, P. V., & Roy, D. M. (2006). Alkali-Activated Cements and Concretes. Taylor & Francis.

Sofi, M., van Deventer, J. S. J., Mendis, P. A., & Lukey, G. C. (2007). Engineering properties of inorganic polymer concretes (IPCs). Cement and Concrete Research, 37(2), 251–257.

Temuujin, J., Riessen, A., & Williams, R. (2009). Influence of calcium compounds on the mechanical properties of fly ash geopolymer pastes. Journal of Hazardous Materials, 167(1), 82–88