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Development of pervious oyster shell habitat (POSH) concrete for reef restoration and living shorelines
Highlights A novel pervious oyster shell habitat concrete is developed. Cementitious materials, sand content, and paste volume all contribute to increased strength. Carbonation to almost neutral pH occurs at 64 days, with significant carbonation at 28 days. The developed module for oyster reef restoration is superior in weight, void space, demand for cement and natural aggregate, and carbon footprint.
Abstract This study investigated the development of a more durable and sustainable cementitious composite substrate for oyster reef restoration using recycled oyster shells and low cement content. The effects of concrete mix proportions (w/c ratio, sand content, and cement content) on the physical properties of the hardened concretes were investigated. Increasing the water, sand, cement, and high-range water reducing admixture content improved both the compressive and flexural strength mostly by improving the coating of cementitious materials around the shells. The proposed material for reef restoration is superior in terms of cost, durability, environmental benefits, and carbon footprint.
Development of pervious oyster shell habitat (POSH) concrete for reef restoration and living shorelines
Highlights A novel pervious oyster shell habitat concrete is developed. Cementitious materials, sand content, and paste volume all contribute to increased strength. Carbonation to almost neutral pH occurs at 64 days, with significant carbonation at 28 days. The developed module for oyster reef restoration is superior in weight, void space, demand for cement and natural aggregate, and carbon footprint.
Abstract This study investigated the development of a more durable and sustainable cementitious composite substrate for oyster reef restoration using recycled oyster shells and low cement content. The effects of concrete mix proportions (w/c ratio, sand content, and cement content) on the physical properties of the hardened concretes were investigated. Increasing the water, sand, cement, and high-range water reducing admixture content improved both the compressive and flexural strength mostly by improving the coating of cementitious materials around the shells. The proposed material for reef restoration is superior in terms of cost, durability, environmental benefits, and carbon footprint.
Development of pervious oyster shell habitat (POSH) concrete for reef restoration and living shorelines
Uddin, Mohammad J. (author) / Smith, Kelly J. (author) / Hargis, Craig W. (author)
2021-05-17
Article (Journal)
Electronic Resource
English
British Library Conference Proceedings | 2023
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