The development of coral concretes and their upgrading technologies: a critical review
Article
Article Title | The development of coral concretes and their upgrading technologies: a critical review |
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ERA Journal ID | 3470 |
Article Category | Article |
Authors | Wang, Aiguo (Author), Lyu, Bangcheng (Author), Zhang, Zuhua (Author), Liu, Kaiwei (Author), Xu, Haiyan (Author) and Sun, Daosheng (Author) |
Journal Title | Construction and Building Materials |
Journal Citation | 187, pp. 1004-1019 |
Number of Pages | 16 |
Year | 2018 |
Publisher | Elsevier |
Place of Publication | Netherlands |
ISSN | 0950-0618 |
Digital Object Identifier (DOI) | https://doi.org/10.1016/j.conbuildmat.2018.07.202 |
Web Address (URL) | https://www.sciencedirect.com/science/article/pii/S0950061818318749#ak005 |
Abstract | The utilization of locally available raw materials is extremely necessary for the offshore island construction in ocean. Coral can be used as aggregate but is usually light and porous, having rough surface, weak adherence to the attachments and high concentration of sea salts. These characteristics affect the workability, mechanical properties, volume stability and durability of resulting concretes. This review paper discussed the instability of Portland cement hydration products under the ocean environment, the low strength and stiffness of coral aggregates, their large connected porosity and the weak interface microstructure between the cement matrix and coral aggregates. To overcome these problems, such as low grade of strengths, inadequate corrosion resistance and high brittleness, this paper proposed some perspective techniques: modification of coral aggregate, development of new cementitious materials, fiber reinforcement and mix proportion design. |
Keywords | coral concrete; coral aggregate; cementitious materials; fiber reinforcement; mix proportion design |
ANZSRC Field of Research 2020 | 401602. Composite and hybrid materials |
Public Notes | Files associated with this item cannot be displayed due to copyright restrictions. |
Byline Affiliations | Anhui Jianzhu University, China |
Hunan University, China | |
Centre for Future Materials | |
Institution of Origin | University of Southern Queensland |
Funding source | Australian Research Council (ARC) Grant ID (DP1006016 |
Funding source | Australian Research Council (ARC) Grant ID DE1006382 |
https://research.usq.edu.au/item/q4z9z/the-development-of-coral-concretes-and-their-upgrading-technologies-a-critical-review
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