Sustainability framework of recycled aggregate concrete produced with supplementary cementitious materials

Document Type

Article

Publication Date

8-1-2023

Abstract

Engineering products’ sustainability has changed from being a choice to a crucial requirement. In this study, the impact of employing 20 % fly ash (FA) and/or 12 % silica fume (SF) as cement substitutes in the production of recycled aggregate concrete is examined. The examination was conducted in two stages, evaluation stage and analysis stage. In the evaluation stage, the mechanical characteristics, environmental impact, and production costs of ten concrete mixtures were assessed with laboratory experiments and data collection. While in the analysis stage, three multi-criteria decision-making techniques (namely: EDAS, VIKOR, and TOPSIS) were utilized to optimize the most valuable and sustainable concrete mixture. The key results displayed that utilizing up to 70 % of recycled concrete aggregate with an optimal dosage of a combination of 20 % FA and 12 % SF provides high-quality, environmentally friendly, and costly effective concrete.

Identifier

85142537661 (Scopus)

Publication Title

Ain Shams Engineering Journal

External Full Text Location

https://doi.org/10.1016/j.asej.2022.102036

ISSN

20904479

Issue

8

Volume

14

This document is currently not available here.

Share

COinS