Combined Effect of Expansive and Shrinkage-Reducing Admixtures on the Properties of Ultra High Performance Fiber-Reinforced Concrete
- Title
- Combined Effect of Expansive and Shrinkage-Reducing Admixtures on the Properties of Ultra High Performance Fiber-Reinforced Concrete
- Author
- 류두열
- Keywords
- Ultra high performance fiber-reinforced concrete; expansive admixture; shrinkage-reducing admixture; shrinkage; elastic stress; theoretical shrinkage cracking; degree of restraint.
- Issue Date
- 2014-07
- Publisher
- SAGE Publications
- Citation
- Journal of composite materials,v.48 no.16, pp.1981 - 1991
- 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.
- URI
- http://journals.sagepub.com/doi/full/10.1177/0021998313493809http://hdl.handle.net/20.500.11754/50853
- DOI
- 10.1177/0021998313493809
- Appears in Collections:
- COLLEGE OF ENGINEERING[S](공과대학) > ARCHITECTURAL ENGINEERING(건축공학부) > Articles
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