TY - GEN
T1 - Optimization of CWP-Slag Blended Geopolymer Concrete using Taguchi Method
AU - Chokkalingam, Ponalagappan
AU - Elmir, Abdulkader
AU - El-Hassan, Hilal
AU - El-Dieb, Amr
N1 - Funding Information:
The authors gratefully acknowledge the United Arab Emirates University (UAEU) for supporting the research reported in this paper by Grant No. 31N453. Also, the assistance of the lab staff and engineers at the civil engineering laboratory of UAEU in the preparations and testing of specimens is much appreciated.
Publisher Copyright:
© 2022, Avestia Publishing. All rights reserved.
PY - 2022
Y1 - 2022
N2 - This paper aims to optimize the mixture proportions of geopolymer concrete prepared using a binary binder system composed of ceramic waste powder (CWP) and ground granulated blast furnace slag (or simply slag) for superior mechanical performance. The corresponding mixtures were proportioned, analyzed, and optimized by adopting the Taguchi approach. The binder content, CWP replacement rate by slag, alkali-activator solution-to-binder (AAS/B) ratio, sodium silicate-to-sodium hydroxide (SS/SH) ratio, and sodium hydroxide solution molarity were assigned as factors in the design phase. Each factor was characterized by four different levels, resulting in the establishment of an L16 orthogonal array. The target design property was the 28-day cylinder compressive strength. The analysis of variance showed that AAS/B ratio, CWP replacement rate by slag, and SS/SH ratio were key factors affecting the strength in geopolymer concrete, while SH molarity and binder content showed the least contributions. The blended geopolymer made with 40% CWP and 60% slag yielded the optimal compressive strength response with a binder content, AAS/B ratio, SS/SH ratio, and SH solution molarity of 450 kg/m3, 0.5, 1.5, and 10 M, respectively.
AB - This paper aims to optimize the mixture proportions of geopolymer concrete prepared using a binary binder system composed of ceramic waste powder (CWP) and ground granulated blast furnace slag (or simply slag) for superior mechanical performance. The corresponding mixtures were proportioned, analyzed, and optimized by adopting the Taguchi approach. The binder content, CWP replacement rate by slag, alkali-activator solution-to-binder (AAS/B) ratio, sodium silicate-to-sodium hydroxide (SS/SH) ratio, and sodium hydroxide solution molarity were assigned as factors in the design phase. Each factor was characterized by four different levels, resulting in the establishment of an L16 orthogonal array. The target design property was the 28-day cylinder compressive strength. The analysis of variance showed that AAS/B ratio, CWP replacement rate by slag, and SS/SH ratio were key factors affecting the strength in geopolymer concrete, while SH molarity and binder content showed the least contributions. The blended geopolymer made with 40% CWP and 60% slag yielded the optimal compressive strength response with a binder content, AAS/B ratio, SS/SH ratio, and SH solution molarity of 450 kg/m3, 0.5, 1.5, and 10 M, respectively.
KW - Ceramic waste powder
KW - geopolymer
KW - slag
KW - Taguchi method
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U2 - 10.11159/mmme22.111
DO - 10.11159/mmme22.111
M3 - Conference contribution
AN - SCOPUS:85145335292
SN - 9781990800108
T3 - Proceedings of the World Congress on Mechanical, Chemical, and Material Engineering
BT - Proceedings of the 8th World Congress on Mechanical, Chemical, and Material Engineering, MCM 2022
A2 - Qiu, Huihe
A2 - Zhang, Yuwen
A2 - Iasiello, Marcello
PB - Avestia Publishing
T2 - 8th World Congress on Mechanical, Chemical, and Material Engineering, MCM 2022
Y2 - 31 July 2022 through 2 August 2022
ER -