Research on properties of waste oyster shell mortar: The effect of calcination temperature of oyster shell powder

In order to investigate the viability of using oyster shell (OS) in ocean engineering, the impact of calcination temperature of OS powder on the various properties of eco-friendly waste OS mortar were researched in this paper. Additionally, the OS mortars’ cost-efficiency and eco-efficiency was asse...

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Main Authors: Yingdi Liao, Weiyi Li, Bo Da, Yanting Meng, Da Chen
Format: Article
Language:English
Published: Elsevier 2023-12-01
Series:Case Studies in Construction Materials
Subjects:
Online Access:http://www.sciencedirect.com/science/article/pii/S2214509523008197
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author Yingdi Liao
Weiyi Li
Bo Da
Yanting Meng
Da Chen
author_facet Yingdi Liao
Weiyi Li
Bo Da
Yanting Meng
Da Chen
author_sort Yingdi Liao
collection DOAJ
description In order to investigate the viability of using oyster shell (OS) in ocean engineering, the impact of calcination temperature of OS powder on the various properties of eco-friendly waste OS mortar were researched in this paper. Additionally, the OS mortars’ cost-efficiency and eco-efficiency was assessed. According to the experimental findings, the OS mortar follows the same strength development rule as other types of mortars. The mechanical properties, microstructure, water resistance, and chloride diffusion properties of OS mortar might be significantly improved with the addition of OS powder, but its workability would be somewhat diminished. In addition to filling the pore structures of OS mortar, the creation of hydration products was accelerated and the rate of water absorption of OS mortar was decreased as a result of increasing the calcination temperature of OS powder. It was discovered that the impact of temperature on the properties, eco-efficiency and cost-efficiency of mortar weakens as the temperature approached 900 °C. Finally, the optimum calcination temperature of OS powder was determined as 950 °C, which the CO2 emission and raw material cost of OS mortar were reduced by 1.8 % and 0.69 %, respectively, and the eco-efficiency and cost-efficiency are improved to a certain degree.
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spelling doaj.art-8cb50aedae9347519b0abb3c7dfea9182023-11-25T04:49:36ZengElsevierCase Studies in Construction Materials2214-50952023-12-0119e02639Research on properties of waste oyster shell mortar: The effect of calcination temperature of oyster shell powderYingdi Liao0Weiyi Li1Bo Da2Yanting Meng3Da Chen4College of Harbour, Coastal and Offshore Engineering, Hohai University, Nanjing 210098, China; Key Laboratory of Coastal Disaster and Defence of Ministry of Education, Hohai University, Nanjing 210098, China; Yangtze Institute for Conservation and Development, Hohai University, Nanjing 210098, ChinaCollege of Harbour, Coastal and Offshore Engineering, Hohai University, Nanjing 210098, ChinaCollege of Harbour, Coastal and Offshore Engineering, Hohai University, Nanjing 210098, China; Key Laboratory of Coastal Disaster and Defence of Ministry of Education, Hohai University, Nanjing 210098, China; Yangtze Institute for Conservation and Development, Hohai University, Nanjing 210098, ChinaCollege of Harbour, Coastal and Offshore Engineering, Hohai University, Nanjing 210098, ChinaCollege of Harbour, Coastal and Offshore Engineering, Hohai University, Nanjing 210098, China; Key Laboratory of Coastal Disaster and Defence of Ministry of Education, Hohai University, Nanjing 210098, China; Yangtze Institute for Conservation and Development, Hohai University, Nanjing 210098, China; Corresponding author at: College of Harbour, Coastal and Offshore Engineering, Hohai University, Nanjing 210098, China.In order to investigate the viability of using oyster shell (OS) in ocean engineering, the impact of calcination temperature of OS powder on the various properties of eco-friendly waste OS mortar were researched in this paper. Additionally, the OS mortars’ cost-efficiency and eco-efficiency was assessed. According to the experimental findings, the OS mortar follows the same strength development rule as other types of mortars. The mechanical properties, microstructure, water resistance, and chloride diffusion properties of OS mortar might be significantly improved with the addition of OS powder, but its workability would be somewhat diminished. In addition to filling the pore structures of OS mortar, the creation of hydration products was accelerated and the rate of water absorption of OS mortar was decreased as a result of increasing the calcination temperature of OS powder. It was discovered that the impact of temperature on the properties, eco-efficiency and cost-efficiency of mortar weakens as the temperature approached 900 °C. Finally, the optimum calcination temperature of OS powder was determined as 950 °C, which the CO2 emission and raw material cost of OS mortar were reduced by 1.8 % and 0.69 %, respectively, and the eco-efficiency and cost-efficiency are improved to a certain degree.http://www.sciencedirect.com/science/article/pii/S2214509523008197Eco-friendly waste oyster shell (OS) mortarOyster shell powderCalcination temperatureMechanical propertyDurabilityEco-efficiency and cost-efficiency
spellingShingle Yingdi Liao
Weiyi Li
Bo Da
Yanting Meng
Da Chen
Research on properties of waste oyster shell mortar: The effect of calcination temperature of oyster shell powder
Case Studies in Construction Materials
Eco-friendly waste oyster shell (OS) mortar
Oyster shell powder
Calcination temperature
Mechanical property
Durability
Eco-efficiency and cost-efficiency
title Research on properties of waste oyster shell mortar: The effect of calcination temperature of oyster shell powder
title_full Research on properties of waste oyster shell mortar: The effect of calcination temperature of oyster shell powder
title_fullStr Research on properties of waste oyster shell mortar: The effect of calcination temperature of oyster shell powder
title_full_unstemmed Research on properties of waste oyster shell mortar: The effect of calcination temperature of oyster shell powder
title_short Research on properties of waste oyster shell mortar: The effect of calcination temperature of oyster shell powder
title_sort research on properties of waste oyster shell mortar the effect of calcination temperature of oyster shell powder
topic Eco-friendly waste oyster shell (OS) mortar
Oyster shell powder
Calcination temperature
Mechanical property
Durability
Eco-efficiency and cost-efficiency
url http://www.sciencedirect.com/science/article/pii/S2214509523008197
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