Combined effect of expansive and shrinkage-reducing admixtures on the properties of ultra high performance fiber-reinforced concrete
- Authors
- Yoo, Doo-Yeol; Park, Jung-Jun; Kim, Sung-Wook; Yoon, Young-Soo
- Issue Date
- 7월-2014
- Publisher
- SAGE PUBLICATIONS LTD
- Keywords
- Ultra high performance fiber-reinforced concrete; expansive admixture; shrinkage-reducing admixture; shrinkage; elastic stress; theoretical shrinkage cracking; degree of restraint
- Citation
- JOURNAL OF COMPOSITE MATERIALS, v.48, no.16, pp.1981 - 1991
- Indexed
- SCIE
SCOPUS
- Journal Title
- JOURNAL OF COMPOSITE MATERIALS
- Volume
- 48
- Number
- 16
- Start Page
- 1981
- End Page
- 1991
- URI
- https://scholar.korea.ac.kr/handle/2021.sw.korea/98052
- DOI
- 10.1177/0021998313493809
- ISSN
- 0021-9983
- Abstract
- In order to investigate the combined effect of expansive and shrinkage-reducing admixtures on shrinkage and mechanical properties of ultra high performance fiber-reinforced concrete, a series of experiments including three types of shrinkage tests, compressive and flexural tests, and penetration-resistance test were performed. Test results showed that about 51-53% of free shrinkage and 35-49% of restrained steel strains were reduced by adding 1% shrinkage-reducing admixture along with 7.5% expansive admixture with slight change of strength. Elastic stress, residual interface pressure and degree of restraint from ring specimens were also significantly reduced by using expansive and shrinkage-reducing admixtures. Although the elastic stress of the ring specimen without expansive and shrinkage-reducing admixtures was higher than the tensile strength, no shrinkage crack was observed for all test specimens due to the relaxation effect.
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Collections - College of Engineering > School of Civil, Environmental and Architectural Engineering > 1. Journal Articles
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