Experimental Behaviour of Seawater Concrete with Copper Slag

Abstract

Marine concrete structures are subjected to very severe exposure conditions and their durability is directly related to the quality of concrete used in the construction due to the salinity present in water .The present study intends to evaluate the strength and bonding property of copper slag in sea water concrete (SWC) and tap water concrete (TPC). In total the mixes were cast with 25% using copper slag as a substitution for fine aggregate at constant w/c 0.4 for M40 mix grade. The various tests conducted on different concrete mixes included fresh properties, compressive strength, split tensile strength, young’s modulus, flexural and bond strength. Results showed that fresh properties enhanced with increment in copper slag substitution. The experimental trails were carried out for higher strength and durability. The projected mix design method was found to be agreeable for producing concrete with fine aggregates having different properties. The pH of sea water used fluctuates between 6.4 to 8.10. The specimens were casted for various sea water having different pH the strength was compared with the control specimen.

A Systematic Literature Review on the Effect of Seawater as A Promising Material on the Physical and Mechanical Performance of Concrete

“…A lower water-cement ratio was also used in seawater concrete because the salinity of the seawater was found to affect the overall performance of the concrete (Dhondy et al, 2021). In addition, the use of seawater would slightly reduce the slump and spread of cement paste generated in the concrete mixture compared to Da B et al, 2021;Li et al, 2021;Yue C et al, 2021;Dhondy et al, 2020;He X et al,2020;Yin et al, 2020;Parvizi et al, 2020;Chen G et al, 2020;Mansyur & Permana, 2020;Ma H et al, 2020;Gao et al, 2020;Soares et al, 2020;Adnan et al, 2020;Li, L. G., et al, 2019;;Montanari L. et al, 2019;Yu H et al, 2019;Gong W et al, 2019;Madona & Sivakumar, 2019;Jiang et al, 2019;Younis et al, 2019;Tan Y et al, 2018;Younis et al, 2018;Duan et al, 2015) Flexural strength 5 Gao et al, 2020;Parvizi et al, 2020;Jiang et al, 2019;Duan et al, 2015) Splitting tensile strength 4 (Ting M.Z.Y. et al, 2020;Parvizi et al, 2020;Yin et al, 2020;Younis et al, 2018) that of freshwater (Younis et al, 2018).…”