Bouaissi, A., Li, L., Abdullah, M., and Bui, Q. “Mechanical properties and microstructure analysis of FA-GGBS-HMN based geopolymer concrete”, Construction and Building Materials, 210, pp. 198-209 (2019).
 Aiken, T.A., Kwasny, J., Sha, W., and Soutsos, M.N. “Effect of slag content and activator dosage on the resistance of fly ash geopolymer binders to sulfuric acid attack” Cement and Concrete Research, 111, pp. 23-40 (2018).
 Mark, O.G., Ede, A.N., Olofinnade, O., Bamigboye, G., Okeke, C., Oyebisi, S.O., and Arum, C. “Influence of some selected supplementary cementitious materials on workability and compressive strength of concrete- a review”, IOP Conference Series: Materials Science and Engineering, 640, 012071 (2019).
 Kathirvel, P. and Kaliyaperumal, S.R.M. “Performance of alkali-activated slag concrete under aggressive environment”, Scientia Iranica, 25(5A), pp. 2451-2460 (2018).
 Akinwumi, I.I. and Aidomojie, O.I. “Effect of corncob ash on the geotechnical properties of lateritic soil stabilized with Portland cement”, International Journal of Geomatics and Geoscience, 5(3), pp. 375-392 (2015).
 Oyebisi, S., Ede, A., Olutoge, F., and Omole, D. “Geopolymer concrete incorporating agro-industrial wastes: Effects on mechanical properties, microstructural behaviour and mineralogical phases”, Construction and Building Materials, 256, 119390 (2020).
 Guangwei, L., Huajun, Z., Zuhua, Z., and Qisheng, W. “Effect of rice husk ash addition on the compressive strength and thermal stability of metakaolin based geopolymer”, Construction and Building Materials, 22 pp. 872-881 (2019).
 Samad, S., Shah, A., Lambachiya, M.C., and Desai, S.B. “Strength development of binary cement concrete, using Pulverized Fly Ash (PFA) under various curing conditions”, Scientia Iranica, 26(2A), pp. 615-624 (2019).
 Khan, S.U., Nuruddin, M.F., Ayub, T., and Shafiq, N. “Effects of different mineral admixtures on the properties of fresh concrete”, Scientific World Journal
, 1-11 (2014). http://dx.doi.org/10.1155/2014/986567
 Davidovits, J. “High-alkali cement for 21st century concretes. in concrete technology, past, present and future, Proceedings of V. Mohan Malhotra Symposium”, American Concrete Institute, 144, pp. 383-397 (1994).
 Onoue, K. and Bier, T.A. “Optimization of alkali-activated mortar utilizing ground granulated blast-furnace slag and natural pozzolan from Germany with the dynamic approach of the Taguchi method”, Construction and Building Materials, 144, pp. 357-372 (2017).
 Neville, A.M. Properties of Concrete, 5th Edition, Pearson Education Limited. England (2011).
 Myers, R.H., Montgomery, D.C., Anderson-Cook, C.M. Response Surface Methodology: Process and Product Optimization using Designed of Experiments, 3rd Edition, John Wiley and Sons, Inc. New Jersey (2009).
 Montgomery, DC Design and Analysis of Experiments, 6th Edition. John Wiley and Sons, Inc., New York (2005).
 Alsanusi, S. and Bentaher, L. “Prediction of compressive strength of concrete from early age test result using design of experiments (RSM)”, International Journal of Civil and Environmental Engineering, 9(12) 1559-1563 (2015).
 Dai, C., Wu, A., Qi, Y., and Chen, Z. “The optimization of mix proportions for cement paste backfill materials via Box–Behnken experimental method”, Journal of Institute of Engineering (India Series D), 100(2), pp. 307-316 (2019).
 Liu, H., Liu, S., Wang, S., Gao, X., and Gong Y. “Effect of mix proportion parameters on behaviours of basalt fibre RPC based on Box-Behnken model,” Applied Science, 9 2031 (2019).
 Ramkumar, B.G., Barmavath, S., and Nagaraju, K. “Application of response surface methodology for optimization of alkali activated slag concrete”, International Journal of Science, Development and Research, 2(3), pp. 35-47 (2017).
 British Standard EN 196- 3, Method of Testing Cement: Physical Test, BSI, London (2016).
 British Standard EN 196-6, Methods of Testing Cement: Determination of Fineness, BSI, London (2018).
 British Standard EN 15167-1, Ground Granulated Blast Furnace Slag for use in Concrete, Mortar and Grout: Definitions, Specifications and Conformity Criteria, BSI, London (2006).
 British Standard EN 450-1, Pozzolan for use in Concrete: Definitions, Specifications and Conformity Criteria, BSI, London (2012).
 British Standard EN 196-2, Methods of Testing Cement: Chemical Analysis of Cement, BSI, London (2016).
 British Standard EN 12620, Aggregates from Natural Sources for Concrete, BSI, London (2013).
 Rajamane, N.P. and Jeyalakshmi, R. Quantities of Sodium Hydroxide Solids and Water to Prepare Sodium Hydroxide Solution of Given Molarity for Geopolymer Concrete Mixes, Indian Concrete Institute Technical Paper, SRM University, India (2014).
 Oyebisi, S., Ede, A., Olutoge, F., and Olukanni, D. “Assessment of activity moduli and acidic resistance of slag-based geopolymer concrete incorporating pozzolan”, Case Studies in Construction Materials, 13, e0039456(2020).
 British Standard EN 206, Concrete Specifications, Performance, Production and Conformity, BSI, London, (2016).
 British Standard 1881-125, Testing Concrete: Methods for Mixing and Sampling Fresh Concrete in the Laboratory, BSI, London (2013).
 British Standard EN 12390-2, Testing Hardened Concrete: Making and Curing for Strength Tests, BSI, London (2019).
 British Standard EN 12390-3, Testing Hardened Concrete: Compressive Strength of Test Specimens, BSI, London (2009).
 British Standard EN 12390-5, Testing Hardened Concrete: Flexural Strength of Test Specimens, BSI, London (2019).
 Derringer, G. and Suich, R. “Simultaneous optimization of several response variables”, Journal of Quality Technology, 12, pp. 214-219 (1980).
 Chen, W. and Brouwers, H. “The hydration of slag, Part 1: reaction models for alkali-activated slag”, Journal of Materials Science, 42, pp. 428-443 (2007).
 Khale, D. and Chaudhary, R. “Mechanism of geopolymerization and factors influencing its development: a review”, Journal of Materials Science, 42, pp. 729-749 (2007).
 Asadzadeh, S. and Khoshbayan, S. “Multi-objective optimization of influential factors on the production process of foamed concrete using Box-Behnken approach”, Construction and Building Materials, 170, pp. 101-110 (2018).
 Oyebisi, S., Ede, A., Olutoge, F., and Ogbiye, S. “Evaluation of reactivity indexes and durability properties of slag-based geopolymer concrete incorporating corn cob ash”, Construction and Building Materials, 258, 119604(2020).
 Wan, X., Hou, D., Zhao, T., and Wang, L. “Insights on molecular structure and micro properties of alkali-activated slag materials: A reactive molecular dynamics study”, Construction and Building Materials, 139, pp. 430-437 (2017).
 Kaplan, M. F. “Flexural and compressive strength of concrete as affected by the properties of coarse aggregates”, Journal of American Concrete Institute, 55, pp. 1193-1208 (1959).
 Oyebisi, S.O., Ede, A.N., and Olutoge, F.A. “Optimization of design parameters of slag‑corncob ash‑based geopolymer concrete by the central composite design of the response surface methodology”, Iranian Journal of Science and Technology, Transactions of Civil Engineering, 45(1),pp. 27-42 (2021).