Effectiveness of Saturated Coral Aggregate and Shrinkage Reducing Admixture on the Autogenous Shrinkage of Ultrahigh Performance Concrete
Joint Authors
Jinchuan, Mo
Zhongwen, Ou
Liu, Jinming
Chen, Yuzhuo
Guo, Tong
Deng, Wei
Source
Advances in Materials Science and Engineering
Issue
Vol. 2017, Issue 2017 (31 Dec. 2017), pp.1-11, 11 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2017-07-25
Country of Publication
Egypt
No. of Pages
11
Abstract EN
The use of saturated coral aggregate (SCA) as practical replacement of quartz sand has been shown to effectively mitigate the autogenous shrinkage in ultrahigh performance concrete (UHPC).
The autogenous deformation, the compressive strength, the flexural strength, and the hydration property development of paste with different shrinkage means were tested.
Three different methods were evaluated to mitigate the autogenous shrinkage: SCA, shrinkage reducing admixture (SRA), and the mixture of SCA and SRA (SRA-SCA).
It was found that SCA and SRA have all the effective ways to reduce the shrinkage deformation, and SRA-SCA was the most effective in mitigating the shrinkage.
The autogenous shrinkage of UHPC was restrained, when the SCA dosage was 44%, the SRA dosage was 0.8%, the SCA content was 26%, the SRA dosage was 2.4%, the SCA content was 18%, the SRA content was 2.4%, or the SCA dosage was 26%.
The mechanical properties were deteriorated by the addition of SCA, while the compressive strength was still higher than 90 MPa at 28 days even though the replacement ratio of SCA was up to 50%.
Furthermore, internal curing by means of SCA was proved to be a successful way to mitigate autogenous shrinkage, after the tests.
American Psychological Association (APA)
Liu, Jinming& Zhongwen, Ou& Jinchuan, Mo& Chen, Yuzhuo& Guo, Tong& Deng, Wei. 2017. Effectiveness of Saturated Coral Aggregate and Shrinkage Reducing Admixture on the Autogenous Shrinkage of Ultrahigh Performance Concrete. Advances in Materials Science and Engineering،Vol. 2017, no. 2017, pp.1-11.
https://search.emarefa.net/detail/BIM-1123770
Modern Language Association (MLA)
Liu, Jinming…[et al.]. Effectiveness of Saturated Coral Aggregate and Shrinkage Reducing Admixture on the Autogenous Shrinkage of Ultrahigh Performance Concrete. Advances in Materials Science and Engineering No. 2017 (2017), pp.1-11.
https://search.emarefa.net/detail/BIM-1123770
American Medical Association (AMA)
Liu, Jinming& Zhongwen, Ou& Jinchuan, Mo& Chen, Yuzhuo& Guo, Tong& Deng, Wei. Effectiveness of Saturated Coral Aggregate and Shrinkage Reducing Admixture on the Autogenous Shrinkage of Ultrahigh Performance Concrete. Advances in Materials Science and Engineering. 2017. Vol. 2017, no. 2017, pp.1-11.
https://search.emarefa.net/detail/BIM-1123770
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1123770