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Title: | Taguchi Method for Optimizing Alkali-Activated Mortar Mixtures Using Waste Perlite Powder and Granulated Blast Furnace Slag | Authors: | Hwalla, Joud El-Mir, Abdulkader El-Hassan, Hilal El-Dieb, Amr |
Affiliations: | Department of Civil and Environmental Engineering | Keywords: | Alkali-activated mortar Granulated blast furnace slag Taguchi method Waste perlite powder |
Issue Date: | 2023-06-09 | Publisher: | Springer | Part of: | International RILEM Conference on Synergising expertise towards sustainability and robustness of CBMs and concrete structures | Start page: | 362 | End page: | 373 | Abstract: | This paper aims to find the optimum proportions of alkali-activated mortar mixtures made with waste perlite powder (PP) and granulated blast furnace slag (BFS) for superior fresh and mechanical performance. The PP-BFS blended mortar mixtures were developed using the Taguchi method. Four factors, including the binder content (500, 550, and 600 kg/m3), PP replacement percentage by BFS (25, 50, and 75%), alkali-activator solution-to-binder (S/B) ratio (0.60, 0.65, and 0.70), and sodium silicate-to-sodium hydroxide (SS/SH) ratio (1.0, 1.5, and 2.0), were considered in the design phase. Accordingly, an L9-sized orthogonal array was developed, leading to a total of nine alkali-activated mortar mixtures. The target design criteria were the flow and 7-day compressive strength. The analysis of variance (ANOVA) revealed that the S/B and SS/SH ratios contributed the most to the workability of mixes. Conversely, the PP replacement by BFS was the controlling factor among others on the 7-day compressive strength. Using the Taguchi method, the optimum mix proportions for superior flow ability were binder content of 500 kg/m3, WPP replacement percentage by BFS of 25%, S/B ratio of 0.70, and SS/SH ratio of 1.5. Meanwhile, the highest strength response was attained while using a binder content of 600 kg/m3, WPP replacement percentage by BFS of 25%, S/B ratio of 0.6, and SS/SH ratio of 2.0. |
URI: | https://scholarhub.balamand.edu.lb/handle/uob/6860 | ISSN: | 22110844 | DOI: | 10.1007/978-3-031-33187-9_34 | Open URL: | Link to full text | Type: | Book Chapter |
Appears in Collections: | Department of Civil and Environmental Engineering |
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