Statistical Analysis of Total Replacement of Coarse Aggregate by Sustainable Recycled Aggregates

¹ Department of Civil Technologies, Technical Institute of Najaf, Al-Furat Al-Awsat Technical University, Najaf, Iraq
² Al-Zahraa University for women, Karbala, Iraq
³ Imam Ja'afar Al-Sadiq University, Qahira, Baghdad, Iraq
⁴ Department of Civil Engineering, Universiti Kebangsaan Malaysia, 43600 Bangi, Selangor, Malaysia

^* Corresponding Author: p123005@siswa.ukm.edu.my

Abstract

Since building materials have been increasingly chosen based on their ecological attributes, contemporary development is strongly tied to preserving natural resources through avoiding environmental deterioration. Nevertheless, it was argued that concrete cannot be considered environmentally friendly because of its destructive, resource-consuming nature and the potential for severe environmental impact after its use. Concrete is among the most adaptable materials in construction and contributes significantly to expanding the infrastructural and industrial segments. Nevertheless, it will continue to be the dominant building material utilized everywhere. Even though recycled aggregates (RAs) were still less often employed in the construction sector, much effort was conducted to recycle hardened concrete, and further improvements are needed to maximize this. Some investigations on recycled aggregate's characteristics, applications, drawbacks, and behavior were also discussed. The current research aims to present a statistical analysis of coarse aggregate replacement with different water/cement ratios utilizing Single and two-way ANOVA for different mechanical features (tensile and compressive strengths) and durability features (Chloride ion penetrability) at 28 and 90 curing days. The results show no significant differences in one-way ANOVA and two-way ANOVA for compressive strength and chloride ion penetrability at 28 and 90 curing days.