2026-04-29T13:01:54Zhttps://riubu.ubu.es/oai/requestoai:riubu.ubu.es:10259/79902024-06-12T22:42:10Zcom_10259_6171com_10259_5086com_10259_2604col_10259_6172
He, Zhi-hai
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600
Ni, Ya-qian
ae7f9311-d7c1-450e-a992-7ad17cba575f
600
Zhang, Yu
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600
Shi, Jin-yan
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600
Revilla Cuesta, Víctor
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0000-0003-3337-6250
Hu, Yun-jin
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Lu, Jun
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2023-11-10T11:14:43Z
2023-11-10T11:14:43Z
2022-07
0032-5910
http://hdl.handle.net/10259/7990
10.1016/j.powtec.2022.117613
With the development of marine resources, coral-based cement compositions have broad application prospects in
coastal infrastructure construction such as island reef construction, flood control embankment, airport, and road,
etc. Waste coral powder (CP) was used to prepare high-volume CP mortar (HVCM), and its multiscale characteristics and environmental benefits were assessed, such as strength, microstructure, and nanoscale characteristics. The results showed that with the increase of CP substitution level, the mechanical properties of HVCM
decreased, and the autogenous shrinkage of the mixture was significantly improved. The use of CP to replace the
high-volume cement degraded the microstructure of the samples. From the perspective of nanoscale characteristics, the incorporation of CP reduced the content of hydration phase in the matrix and increased the pore
phase. Meanwhile, the widening of the interfacial transition zone of the HVCM samples was also the main reason
for their performance degradation. Although the incorporation of CP decreased the average elastic modulus of CS-H and increased its total porosity, the pore structure of the gel was slightly refined. In addition, HVCM had
lower carbon emissions and consumption of non-renewable energy compared to plain mortar.
The authors would like to acknowledge the Natural Science Foundation of Zhejiang Province (Grant No. LY20E020006), the International Scientific and Technological Cooperation Project of Shaoxing University (Grant No. 2019LGGH1009), National Natural Science Foundation of China (Grant No. 51602198) and Science and Technology R & D Project of Zhejiang Yongjian New Material Technology Co., Ltd. (Grant No. RD202008) for their financial support to the work present in this paper.
eng
Elsevier
Powder Technology. 2022, V. 407, 117613
https://doi.org/10.1016/j.powtec.2022.117613
Attribution-NonCommercial-NoDerivatives 4.0 Internacional
http://creativecommons.org/licenses/by-nc-nd/4.0/
info:eu-repo/semantics/openAccess
Mortar
Waste coral power
Environmental analysis
Multiscale characteristics
Nanomechanical properties
Ingeniería civil
Materiales de construcción
Civil engineering
Building materials
Mechanical properties, nanoscale characteristics, and environmental analysis of high-volume waste coral powder mortar (HVCM)
info:eu-repo/semantics/article
info:eu-repo/semantics/acceptedVersion
Powder Technology
407
THUMBNAIL
He-pt_2022.pdf.jpg
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oai:riubu.ubu.es:10259/7990
2024-06-13 00:42:10.428
Repositorio Institucional de la Universidad de Burgos
bubrep@ubu.es
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