Design of fly ash geopolymer concrete mix proportions using multivariate adaptive regression spline model
By W. Lokuge, Aaron P. Wilson, Chamila Gunasekara, D. Law, Sujeeva Setunge. 2018
128 citations recorded by the source corpus.
Many research studies have been conducted during recent years on the topic of geopolymer materials based on the engineering performance of the concrete. What has been missing is the combination of this research in a way that would provide a simple to use design tool for geopolymer concrete as a replacement to concrete based on Portland Cement. This research paper addresses this requirement for developing a standard mix design method for Class F, low calcium fly ash based geopolymer concrete using Multivariate Adaptive Regression Spline (MARS) model. Published geopolymer concrete research data was combined into a database and analysed to give the ratios of water/solid, alkaline activator/fly ash, Na2SiO3/NaOH, and NaOH molarity. Targeted compressive strengths ranging from 30 MPa to 55 MPa at 28 days were achieved with laboratory experiments, using the proposed MARS mix design methodology. Thus, this tool has the capability to provide a novel approach for the design of geopolymer concrete mixes to achieve the desired compressive strength appropriate for the construction requirement.
Subfields: Civil and Structural Engineering
View Paper: https://www.semanticscholar.org/paper/291746d2d5214e2ccf8a2543589e139911eb6519
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In Civil and Structural Engineering
- Muhammad Faisal Javed
- Lahiba Imtiaz
- Muhammad Khizar Khan
- Sardar Kashif Ur Rehman
- Shazim Ali memon
- Ozgur Kisi
Citations in the corpus
- Evaporation modelling by heuristic regression approaches using only temperature data (2019, methodology): “…2018): GCV Mð Þ ¼ 1 N PN i¼1 yi f xið Þð Þ2 1 c Mð ÞN 2 (2) where N is the number of data, yi is the desired value or the measured Epan, f(xi) is the calculated value of the pattern i, c (M) is the penalty factor, also called a complexity penalty function (Lokuge et al. 2018, Yilmaz et al. 2018).”
- A Review of Recent Developments and Advances in Eco-Friendly Geopolymer Concrete (2020, background): “It is reported that workability decreases with an increase in the molarity of NaOH [81,106,107].”