Investigating Various Factors Affecting the Long-Term Compressive Strength of Heat-Cured Fly Ash Geopolymer Concrete and the Use of Orthogonal Experimental Design Method
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Abstract
Abstract This work quantified the hierarchy of the influence of three common mixture design parameters on the compressive strength and the rate of strength increase over the long term of low-calcium fly ash geopolymer concrete (FAGC) through designing 16 mixtures by the orthogonal experimental design (OED) method. The parameters used in the study were liquid to fly ash (L/FA) ratio, sodium hydroxide concentration (SHC) and sodium silicate solution to sodium hydroxide solution (SS/SH) ratio. The L/FA ratio showed little effect on compressive strength when it was varied from 0.40 to 0.52. SHC showed the greatest influence on compressive strength with little impact on the rate of strength increase after the initial heat curing. Even though the SS/SH ratio showed a small effect on the initial compressive strength, it had a considerable influence on the rate of strength increase over the long term. It was found that the compressive strength at 480 days was positively related to the Na2O/SiO2 molar ratio when it was varied from 0.49 to 0.80 and the Si/Al molar ratio was increased up to 1.87. Analysis of the failure types of specimens demonstrated that compressive strength of FAGC was associated with the strength of the mortar–aggregate interface zone (MAIZ).
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Research context
OpenAlex topics: Concrete and Cement Materials Research · Innovative concrete reinforcement materials · Concrete Properties and Behavior
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References (31)
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1. Abdulkareem, O. A., Al Bakri, A. M., Kamarudin, H., Nizar, I. K., & Ala’eddin, A. S. (2014). Effects of elevated temperatures on the thermal behavior and mechanical performance of fly ash geopolymer paste, mortar and lightweight concrete. Construction and Building Materials, 50, 377–387.10.1016/j.conbuildmat.2013.09.047 ↗
2. Chi, M., & Huang, R. (2013). Binding mechanism and properties of alkali-activated fly ash/slag mortars. Construction and Building Materials, 40, 291–298.10.1016/j.conbuildmat.2012.11.003 ↗
3. Chithambaram, S. J., Kumar, S., Prasad, M. M., & Adak, D. (2018). Effect of parameters on the compressive strength of fly ash based geopolymer concrete. Structural Concrete, 19, 1202–1209.10.1002/suco.201700235 ↗
4. Davidovits, J. (2008). Geopolymer chemistry and applications. Saint-Quentin: Geopolymer Institute.
5. De Vargas, A. S., Dal Molin, D. C., Vilela, A. C., Da Silva, F. J., Pavao, B., & Veit, H. (2011). The effects of Na2O/SiO2 molar ratio, curing temperature and age on compressive strength, morphology and microstructure of alkali-activated fly ash-based geopolymers. Cement & Concrete Composites, 33, 653–660.10.1016/j.cemconcomp.2011.03.006 ↗
6. Duxson, P., Lukey, G. C., & van Deventer, J. S. J. (2007a). Physical evolution of Na-geopolymer derived from metakaolin up to 1000 C. Journal of Materials Science, 42, 3044–3054.10.1007/s10853-006-0535-4 ↗
7. Duxson, P., Lukey, G. C., & van Deventer, J. S. J. (2007b). The thermal evolution of metakaolin geopolymers: Part 2–Phase stability and structural development. Journal of Non-Crystalline Solids, 353, 2186–2200.10.1016/j.jnoncrysol.2007.02.050 ↗
8. Gunasekara, C., Sujeeva, S., & Law, D. W. (2017). Long-term mechanical properties of different fly ash geopolymers. ACI Structural Journal. https://doi.org/10.14359/51689454.10.14359/51689454 ↗
9. Heah, C. Y., Kamarudin, H., Al Bakri, A. M., Bnhussain, M., Luqman, M., Nizar, I. K., et al. (2012). Study on solids-to-liquid and alkaline activator ratios on kaolin-based geopolymers. Construction and Building Materials, 35, 912–922.10.1016/j.conbuildmat.2012.04.102 ↗
10. Hongen, Z., Feng, J., Qingyuan, W., Ling, T., & Xiaoshuang, S. (2017). Influence of cement on properties of fly-ash-based concrete. ACI Materials Journal, 114, 745–753.10.14359/51700793 ↗
11. Ji, L., Si, Y., Liu, H., Song, X., Zhu, W., & Zhu, A. (2014). Application of orthogonal experimental design in synthesis of mesoporous bioactive glass. Microporous and Mesoporous Materials, 184, 122–126.10.1016/j.micromeso.2013.10.007 ↗
12. Jo, B. W., Chakraborty, S., Choi, J. S., & Jo, J. H. (2016). Investigation on the effectiveness of aqueous carbonated lime in producing an alternative cementitious material. International Journal of Concrete Structures and Materials, 10, 15–28.10.1007/s40069-016-0129-8 ↗
13. Kong, D. L. Y., & Sanjayan, J. G. (2010). Effect of elevated temperatures on geopolymer paste, mortar and concrete. Cement and Concrete Research, 40, 334–339.10.1016/j.cemconres.2009.10.017 ↗
14. Kotwal, A. R., Kim, Y. J., Hu, J., & Sriraman, V. (2015). Characterization and early age physical properties of ambient cured geopolymer mortar based on class C fly ash. International Journal of Concrete Structures and Materials, 9, 35–43.10.1007/s40069-014-0085-0 ↗
15. Ministry of Construction of the PRC & General Administration of Quality Supervision, Inspection and Quarantine of the People’s Republic of China (2003). GB/T 50081-2002 standard for test method of mechanical properties on ordinary concrete (Chinese standard), Beijing.
16. Nath, P., & Sarker, P. K. (2015). Use of OPC to improve setting and early strength properties of low calcium fly ash geopolymer concrete cured at room temperature. Cement & Concrete Composites, 55, 205–214.10.1016/j.cemconcomp.2014.08.008 ↗
17. Nazari, A., Bagheri, A., Sanjayan, J. G., Dao, M., Mallawa, C., Zannis, P., et al. (2019). Thermal shock reactions of Ordinary Portland cement and geopolymer concrete: Microstructural and mechanical investigation. Construction and Building Materials, 196, 492–498.10.1016/j.conbuildmat.2018.11.098 ↗
18. Pasupathy, K., Berndt, M., Sanjayan, J., Rajeev, P., & Cheema, D. S. (2018). Durability performance of precast fly ash-based geopolymer concrete under atmospheric exposure conditions. Journal of Materials in Civil Engineering, 30, 04018007.10.1061/(ASCE)MT.1943-5533.0002165 ↗
19. Rashad, A. M. (2015). Potential use of phosphogypsum in alkali-activated fly ash under the effects of elevated temperatures and thermal shock cycles. Journal of Cleaner Production, 87, 717–725.10.1016/j.jclepro.2014.09.080 ↗
20. Riahi, S., & Nazari, A. (2012). The effects of nanoparticles on early age compressive strength of ash-based geopolymers. Ceramics International, 38, 4467–4476.10.1016/j.ceramint.2012.02.021 ↗
21. Sagoe-Crentsil, K., & Weng, L. (2007). Dissolution processes, hydrolysis and condensation reactions during geopolymer synthesis: Part II. High Si/Al ratio systems. Journal of Materials Science, 42, 3007–3014.10.1007/s10853-006-0818-9 ↗
22. Sathonsaowaphak, A., Chindaprasirt, P., & Pimraksa, K. (2009). Workability and strength of lignite bottom ash geopolymer mortar. Journal of Hazardous Materials, 168, 44–50.10.1016/j.jhazmat.2009.01.120 ↗
23. Shi, X. S., Collins, F. G., Zhao, X. L., & Wang, Q. Y. (2012). Mechanical properties and microstructure analysis of fly ash geopolymeric recycled concrete. Journal of Hazardous Materials, 237–238, 20–29.10.1016/j.jhazmat.2012.07.070 ↗
24. Sindhunata, J. S. J., Van Deventer, J. S., Lukey, G. C., & Xu, H. (2006). Effect of curing temperature and silicate concentration on fly-ash-based geopolymerization. Industrial and Engineering Chemistry Research, 45, 3559–3568.10.1021/ie051251p ↗
25. Van Jaarsveld, J. G. S., Van Deventer, J. S. J., & Lorenzen, L. (1997). ‘The potential use of geopolymeric materials to immobilise toxic metals: Part I. Theory and applications’, Minerals engineering, 10, 659–669.10.1016/S0892-6875(97)00046-0 ↗
26. Weng, L., & Sagoe-Crentsil, K. (2007). Dissolution processes, hydrolysis and condensation reactions during geopolymer synthesis: Part I—Low Si/Al ratio systems. Journal of Materials Science, 42, 2997–3006.10.1007/s10853-006-0820-2 ↗
27. Xu, H., Van Deventer, J. S. J., & Lukey, G. C. (2001). Effect of alkali metals on the preferential geopolymerization of stilbite/kaolinite mixtures. Industrial and Engineering Chemistry Research, 40, 3749–3756.10.1021/ie010042b ↗
28. Yang, P., Tan, X., Sun, H., Chen, D., & Li, C. (2011). Fire accident reconstruction based on LES field model by using orthogonal experimental design method. Advances in Engineering Software, 42, 954–962.10.1016/j.advengsoft.2011.05.041 ↗
29. Zhang, H., Shi, X., & Wang, Q. (2018). Effect of curing condition on compressive strength of fly ash geopolymer concrete. ACI Materials Journal, 115, 191–196.
30. Zhu, J., Chew, D. A. S., Lv, S., & Wu, W. (2013). Optimization method for building envelope design to minimize carbon emissions of building operational energy consumption using orthogonal experimental design (OED). Habitat International, 37, 148–154.10.1016/j.habitatint.2011.12.006 ↗
31. Zuhua, Z., Xiao, Y., Huajun, Z., & Yue, C. (2009). Role of water in the synthesis of calcined kaolin-based geopolymer. Applied Clay Science, 43, 218–223.10.1016/j.clay.2008.09.003 ↗