Effects of Crushed Oyster Shell on Strength and Durability of Marine Concrete Containing Fly Ash and Blastfurnace Slag
Journal Title: Materials Science-Medžiagotyra - Year 2019, Vol 25, Issue 1
Abstract
A large quantity of oyster shell is generated every year in coastal regions. Instead of being dumped as waste, after crushing or grinding, oyster shell may be recycled for use in concrete. Herein, the use of crushed oyster shell (COS) in conjunction with fly ash (FA) and blastfurnace slag (BS) to produce marine concrete was studied. By varying the COS, FA and BS contents in the marine concrete, the combined effects of COS, FA and BS on the cube compressive strength, water penetration, cyclic wetting-drying chloride attack and long-term seawater attack resistances were evaluated. The results showed that the addition of proper amounts of COS, FA and BS has positive effects on the strength and durability of marine concrete, but excessive COS may have negative effects. Hence, the combined addition of COS, FA and BS up to a certain optimum COS content is a promising way of producing a higher performance and greener marine concrete.
Authors and Affiliations
Hai-Yan CHEN, Leo Gu LI, Zhen-Min LAI, Albert Kwok-Hung KWAN, Pi-Mao CHEN, Pui-Lam NG
Keywords
Related Articles
- EP ID EP452531
- DOI 10.5755/j01.ms.25.1.18772
- Views 54
- Downloads 0
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