Design of geopolymer concrete with GGBFS at ambient curing condition using Taguchi method

By M. Hadi, Nabeel A. Farhan, M. Sheikh. 2017

372 citations recorded by the source corpus.

Abstract In this paper, the Taguchi method has been used to design optimum mix proportions for geopolymer concrete with ground granulated blast furnace slag (GGBFS) as aluminosilicate source at ambient curing condition. The influences of binder content, alkaline activator to binder content (Al/Bi) ratio, sodium silicate to sodium hydroxide (SS/SH) ratio, and sodium hydroxide (SH) concentration on the geopolymer concrete were investigated. A total of nine mix designs were evaluated. It was found that specimens with a binder content of 450 kg/m 3 , Al/Bi ratio of 0.35, SS/SH ratio of 2.5, and SH concentration of 14 M produced the highest 7-day compressive strength (60.4 MPa). However, the setting time was found to be short. Hence, fly ash (FA), metakaolin (MK), and silica fume (SF) were used as partial replacement of GGBFS in different proportions to increase the setting time. It was found that the setting time improved for the partial replacement of GGBFS with FA, MK, and SF.

Subfields: Civil and Structural Engineering, Materials Chemistry

View Paper: https://www.semanticscholar.org/paper/80f15519c1b82ddff009e49b3798cf67927db9f4

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In Civil and Structural Engineering

In Materials Chemistry

Citations in the corpus

Optimum mix design of geopolymer pastes and concretes cured in ambient condition based on compressive strength, setting time and workability (2019, methodology): “The Aw/Bi ratio has been proven to have 135 significant effect on the properties of geopolymer materials [13, 30, 31].”
Effects of fly ash characteristics and alkaline activator components on compressive strength of fly ash-based geopolymer mortar (2018, methodology): “The use of different synthesis 101 conditions complicated the analysis of the controlling factors in the selection of the mix 102 proportion [3, 24-29].”
A Review of Recent Developments and Advances in Eco-Friendly Geopolymer Concrete (2020, background): “There are different hit and trial mix design studies followed by researchers [75,76].”