RT info:eu-repo/semantics/article
T1 Mechanical properties, nanoscale characteristics, and environmental analysis of high-volume waste coral powder mortar (HVCM)
A1 He, Zhi-hai
A1 Ni, Ya-qian
A1 Zhang, Yu
A1 Shi, Jin-yan
A1 Revilla Cuesta, Víctor
A1 Hu, Yun-jin
A1 Lu, Jun
K1 Mortar
K1 Waste coral power
K1 Environmental analysis
K1 Multiscale characteristics
K1 Nanomechanical properties
K1 Ingeniería civil
K1 Civil engineering
K1 Materiales de construcción
K1 Building materials
AB With the development of marine resources, coral-based cement compositions have broad application prospects incoastal 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 HVCMdecreased, and the autogenous shrinkage of the mixture was significantly improved. The use of CP to replace thehigh-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 porephase. Meanwhile, the widening of the interfacial transition zone of the HVCM samples was also the main reasonfor 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 hadlower carbon emissions and consumption of non-renewable energy compared to plain mortar.
PB Elsevier
SN 0032-5910
YR 2022
FD 2022-07
LK http://hdl.handle.net/10259/7990
UL http://hdl.handle.net/10259/7990
LA eng
NO 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.
DS Repositorio Institucional de la Universidad de Burgos
RD 22-nov-2024