Design of Alkali-Activated Ladle Slag Mortar Using Taguchi Method

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2 Citations (Scopus)

Abstract

– This study investigates the feasibility of utilizing ladle furnace slag as a sole binder in alkali-activated mortar. The Taguchi method for design of experiments was used to design, analyze, and optimize the mixture proportions of alkali-activated ladle slag mortars. The five factors considered in the design included ladle slag content (LS), alkali-activator solution-to-binder ratio (AAS/B), sodium silicate-to-sodium hydroxide ratio (SS/SH), sodium hydroxide solution molarity (M), and crushed sand-to-dune sand replacement ratio (CSR). With four design levels, a corresponding L16 orthogonal design matrix was developed. The targeted design criteria were the 7-day compressive and tensile strength, workability, and initial setting time. Analysis of variance results showed that mechanical properties were equally impacted by LS, SS/SH, and CSR. Conversely, the LS, AAS/B, and SS/SH contributed the most to the workability and setting time. Using Taguchi method, three mixes were proportioned based on the analyzed data to optimize each of the design criteria. Validation of the optimized mixes provided evidence of the applicability of the Taguchi method to design alkaliactivated ladle slag mortars with a margin of error of less than 9%.

Original languageEnglish
Title of host publicationProceedings of the 7th World Congress on Civil, Structural, and Environmental Engineering, CSEE 2022
EditorsHany El Naggar, Joaquim Barros, Paulo Cachim
PublisherAvestia Publishing
ISBN (Print)9781927877999
DOIs
Publication statusPublished - 2022
Externally publishedYes
Event7th World Congress on Civil, Structural, and Environmental Engineering, CSEE 2022 - Virtual, Online
Duration: Apr 10 2022Apr 12 2022

Publication series

NameWorld Congress on Civil, Structural, and Environmental Engineering
ISSN (Electronic)2371-5294

Conference

Conference7th World Congress on Civil, Structural, and Environmental Engineering, CSEE 2022
CityVirtual, Online
Period4/10/224/12/22

Keywords

  • Taguchi method
  • alkali-activated
  • ladle slag
  • mortar
  • performance evaluation

ASJC Scopus subject areas

  • Civil and Structural Engineering
  • Environmental Engineering

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