Hybrid fuzzy model to predict strength and optimum compositions of natural Alumina-Silica-based geopolymers

Ata Allah Nadiri, Somayeh Asadi, Hamed Babaizadeh, Keivan Naderi

Research output: Contribution to journalArticle

6 Citations (Scopus)

Abstract

This study introduces the supervised committee fuzzy model as a hybrid fuzzy model to predict compressive strength (CS) of geopolymers prepared from alumina-silica products. For this purpose, more than 50 experimental data that evaluated the effect of Al2O3/SiO2, Na2O/Al2O3, Na2O/H2O and Na/[Na+K] on (CS) of geopolymers were collected from the literature. Then, three different Fuzzy Logic (FL) models (Sugeno fuzzy logic (SFL), Mamdani fuzzy logic (MFL), and Larsen fuzzy logic (LFL)) were adopted to overcome the inherent uncertainty of geochemical parameters and to predict CS. After validating the model, it was found that the SFL model is superior to MFL and LFL models, but each of the FL models has advantages to predict CS. Therefore, to achieve the optimal performance, the supervised committee fuzzy logic (SCFL) model was developed as a hybrid method to combine the benefits of individual FL models. The SCFL employs an artificial neural network (ANN) model to re-predict the CS of three FL model predictions. The results also show significant fitting improvement in comparison with individual FL models.

Original languageEnglish (US)
Pages (from-to)103-110
Number of pages8
JournalComputers and Concrete
Volume21
Issue number1
DOIs
StatePublished - Jan 1 2018

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Geopolymers
Fuzzy logic
Alumina
Silica
Chemical analysis
Compressive strength

All Science Journal Classification (ASJC) codes

  • Computational Mechanics

Cite this

Nadiri, Ata Allah ; Asadi, Somayeh ; Babaizadeh, Hamed ; Naderi, Keivan. / Hybrid fuzzy model to predict strength and optimum compositions of natural Alumina-Silica-based geopolymers. In: Computers and Concrete. 2018 ; Vol. 21, No. 1. pp. 103-110.
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Hybrid fuzzy model to predict strength and optimum compositions of natural Alumina-Silica-based geopolymers. / Nadiri, Ata Allah; Asadi, Somayeh; Babaizadeh, Hamed; Naderi, Keivan.

In: Computers and Concrete, Vol. 21, No. 1, 01.01.2018, p. 103-110.

Research output: Contribution to journalArticle

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