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Material performance and cost effectiveness of seawater-mixed rubberized concrete
Qatar University, Qatar.
Qatar University, Qatar.
Linnaeus University, Faculty of Technology, Department of Building Technology.ORCID iD: 0000-0003-2273-6863
Qatar University, Qatar.
2021 (English)In: Case Studies in Construction Materials, E-ISSN 2214-5095, Vol. 15, article id e00735Article in journal (Refereed) Published
Sustainable development
SDG 9: Build resilient infrastructure, promote inclusive and sustainable industrialization, and foster innovation, SDG 6: Ensure availability and sustainable management of water and sanitation for all
Abstract [en]

The combined use of seawater and recycled tire aggregate (RTA) in concrete is potentially a way forward towards sustainable construction. It can help control harvesting of natural aggregates, manage waste tires, mitigate freshwater consumption and desalination impacts. The current paper aims at investigating the material performance and cost effectiveness of concrete mixed with seawater and RTA. The paper consists of two parts. The first part studies the characteristics (fresh and hardened) of concrete mixed with seawater and RTA. Thirteen concrete mixtures, varying in mixing water (seawater/freshwater) as well as fine and coarse aggregates (at 0%, 5%, 10%, and 20% replacement levels), were investigated. An extensive experimental program was conducted to compare the thirteen mixtures in terms of physical properties, workability, strength, water absorption, and chloride permeability. The second part of the paper performs a life cycle cost analysis (LCCA) for a 20-story building over a 100-year analysis period to verify the cost effectiveness of a proposed sustainable concrete that combines seawater, RTA (at 5% replacement level), and glass fiber-reinforced polymer (GFRP) reinforcement. A sensitivity analysis was performed to investigate the effect of the discount rate on the LCCA results.

Place, publisher, year, edition, pages
Elsevier, 2021. Vol. 15, article id e00735
Keywords [en]
Materials Science (miscellaneous)
National Category
Building Technologies
Research subject
Technology (byts ev till Engineering), Civil engineering
Identifiers
URN: urn:nbn:se:lnu:diva-107681DOI: 10.1016/j.cscm.2021.e00735ISI: 000708127800005Scopus ID: 2-s2.0-85116921899Local ID: 2021OAI: oai:DiVA.org:lnu-107681DiVA, id: diva2:1605940
Available from: 2021-10-26 Created: 2021-10-26 Last updated: 2022-07-14Bibliographically approved

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Younis, Adel

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