Review of the Short-Term Properties of Confined Seawater Sea Sand Concrete Columns under Compression

Author:

Shrivastava Chitransh1ORCID,Ramli Sulong Nor Hafizah1ORCID,Zahra Tatheer1ORCID,Elchalakani Mohamed2,Gamage Kumari3,Fawzia Sabrina1ORCID

Affiliation:

1. Group of Sustainable Engineered Construction Materials, School of Civil and Environmental Engineering, Faculty of Engineering, Queensland University of Technology, Brisbane, QLD 4000, Australia

2. Department of Civil, Environmental and Mining Engineering, The University of Western Australia, Perth, WA 6009, Australia

3. Department of Civil Engineering, University of Moratuwa, Moratuwa 10400, Sri Lanka

Abstract

The environmental concerns raised by the over-exploitation of fresh water and river sand have driven researchers to explore seawater sea sand concrete (SWSSC) as a substitute for conventional concrete in structural columns. With numerous investigations on this in the past, there is a need to systematically classify and comprehensively understand the response of confined SWSSC columns to promote their usage as structural columns. Consequently, the objective of this review is to summarise and analyse the experimental work conducted so far on confined SWSSC under different compressive loadings. Confined SWSSC columns are classified into five confinement schemes based on the cross-section of the specimens: single-skin, single-skin multilayered, single-skin with additional reinforcement, double-skin, and double-tube-confined SWSSC columns. Based on the findings of the reviewed studies, it can be concluded that the compressive strength and the ductility of the SWSSC can be enhanced through confinement, with effectiveness majorly depending on the material and geometrical properties of the confinement providing material. The existing research work on SWSSC confinement lays out a strong base for future investigations in this area, which will eventually facilitate the acceptance of SWSSC as structural columns, especially for coastal and marine infrastructure.

Publisher

MDPI AG

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