|Table of Contents|

[1] Liao Yingdi, , Wang Xin, et al. Influence of mineral admixtures on the mechanical property anddurability of waste oyster shell mortar [J]. Journal of Southeast University (English Edition), 2023, 39 (3): 277-283. [doi:10.3969/j.issn.1003-7985.2023.03.008]
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Influence of mineral admixtures on the mechanical property anddurability of waste oyster shell mortar()
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Journal of Southeast University (English Edition)[ISSN:1003-7985/CN:32-1325/N]

Volumn:
39
Issue:
2023 3
Page:
277-283
Research Field:
Materials Sciences and Engineering
Publishing date:
2023-09-20

Info

Title:
Influence of mineral admixtures on the mechanical property anddurability of waste oyster shell mortar
Author(s):
Liao Yingdi1;  2;  3;  Wang Xin1;  Feng Jiarui1;  4;  Meng Yanting1;  Chen Da1;  2;  3;  Da Bo1;  2;  3
1College of Harbour, Coastal and Offshore Engineering, Hohai University, Nanjing 210098, China
2Key Laboratory of Coastal Disaster and Defence of Ministry of Education, Hohai University, Nanjing 210098, China
3Yangtze Institute for Conservation and Development, Hohai University, Nanjing 210098, China
4Nanjing R&D High-Tech Co. Ltd., Nanjing 210024, China
Keywords:
crushed waste oyster shell(WOS)mortar;  workability;  mechanical property;  durability;  ecological and economic benefits
PACS:
TU528
DOI:
10.3969/j.issn.1003-7985.2023.03.008
Abstract:
To mitigate the environmental pollution caused by aquatic waste, crushed waste oyster shell(WOS)was added as an aggregate to the mortar. The impact of varying dosages(0%, 20%, 30%, and 40%)of fly ash(FA)/slag powder(SG)and curing periods on the workability, mechanical properties, and durability of the resulting mixtures were investigated. Furthermore, the ecological and economic benefits of WOS mortars were examined. The findings reveal that the compressive strength and static modulus of elasticity in WOS mortar decreased moderately after adding the mineral admixture during the initial curing phase. However, the mechanical properties of WOS mortar improved upon extending the curing period. Additionally, the partial replacement of cement with FA/SG promoted the migration ability of chloride and minimized the drying shrinkage in WOS mortars. In scenarios where engineering application requirements are satisfied, the utilization of WOS mortar could reduce CO2 emissions by 29%.

References:

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Memo

Memo:
Biographies: Liao Yingdi(1977—), female, doctor, associate professor, liaoyingdi@hhu.edu.cn; Da Bo(corresponding author), male, doctor, associate professor, dabo@hhu.edu.cn.
Foundation items: The National Natural Science Foundation of China(No.51509081, 52208241), Jiangsu Provincial Key Research and Development Program(No. BE2020715).
Citation: Liao Yingdi, Wang Xin, Feng Jiarui, et al.Influence of mineral admixtures on the mechanical property and durability of waste oyster shell mortar[J].Journal of Southeast University(English Edition), 2023, 39(3):277-283.DOI:10.3969/j.issn.1003-7985.2023.03.008.
Last Update: 2023-09-20