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10.1016_j.cscm.2021.e00735.pdf (1.95 MB)

Material performance and cost effectiveness of seawater-mixed rubberized concrete

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submitted on 2024-07-01, 10:43 and posted on 2024-07-01, 10:44 authored by Salma Hamid, Khalid Naji, Adel Younis, Usama Ebead

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.

Other Information

Published in: Case Studies in Construction Materials
License: http://creativecommons.org/licenses/by/4.0/
See article on publisher's website: https://dx.doi.org/10.1016/j.cscm.2021.e00735

Additional institutions affiliated with: Arab Center for Engineering Studies

Funding

Qatar National Research Fund (NPRP13S-0209-200311), Advanced Composites for Internal and External Reinforcement of Concrete Structures: Experimental and Life Cycle-Assessment Studies.

History

Language

  • English

Publisher

Elsevier

Publication Year

  • 2021

License statement

This Item is licensed under the Creative Commons Attribution 4.0 International License.

Institution affiliated with

  • Qatar University
  • College of Engineering - QU

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