Combined effect of expansive and shrinkage-reducing admixtures on the properties of ultra high performance fiber-reinforced concrete

Doo Yeol Yoo; Jung Jun Park; Sung Wook Kim; Young Soo Yoon

doi:10.1177/0021998313493809

Combined effect of expansive and shrinkage-reducing admixtures on the properties of ultra high performance fiber-reinforced concrete

Doo Yeol Yoo^*
, Jung Jun Park
, Sung Wook Kim
, Young Soo Yoon

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

42 Citations (Scopus)

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.

Original language	English
Pages (from-to)	1981-1991
Number of pages	11
Journal	Journal of Composite Materials
Volume	48
Issue number	16
DOIs	https://doi.org/10.1177/0021998313493809
Publication status	Published - 2014 Jul

Bibliographical note

Funding Information:
This work was supported by the National Research Foundation of Korea (NRF) grant funded by the Korea government (MEST) (no. 2012R1A2A1A05026406) and carried out as a partial research of the “Development of Ultra High Performance Concrete for Hybrid Cable Stayed Bridges” in the Korea Institute of Construction Technology.

Keywords

Ultra high performance fiber-reinforced concrete
degree of restraint
elastic stress
expansive admixture
shrinkage
shrinkage-reducing admixture
theoretical shrinkage cracking

ASJC Scopus subject areas

Ceramics and Composites
Mechanics of Materials
Mechanical Engineering
Materials Chemistry

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10.1177/0021998313493809

Cite this

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title = "Combined effect of expansive and shrinkage-reducing admixtures on the properties of ultra high performance fiber-reinforced concrete",

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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note = "Funding Information: This work was supported by the National Research Foundation of Korea (NRF) grant funded by the Korea government (MEST) (no. 2012R1A2A1A05026406) and carried out as a partial research of the “Development of Ultra High Performance Concrete for Hybrid Cable Stayed Bridges” in the Korea Institute of Construction Technology. ",

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AU - Kim, Sung Wook

AU - Yoon, Young Soo

N1 - Funding Information: This work was supported by the National Research Foundation of Korea (NRF) grant funded by the Korea government (MEST) (no. 2012R1A2A1A05026406) and carried out as a partial research of the “Development of Ultra High Performance Concrete for Hybrid Cable Stayed Bridges” in the Korea Institute of Construction Technology.

PY - 2014/7

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N2 - 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.

AB - 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.

KW - Ultra high performance fiber-reinforced concrete

KW - degree of restraint

KW - elastic stress

KW - expansive admixture

KW - shrinkage

KW - shrinkage-reducing admixture

KW - theoretical shrinkage cracking

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M3 - Article

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VL - 48

SP - 1981

EP - 1991

JO - Journal of Composite Materials

JF - Journal of Composite Materials

IS - 16

ER -

Combined effect of expansive and shrinkage-reducing admixtures on the properties of ultra high performance fiber-reinforced concrete

Abstract

Bibliographical note

Keywords

ASJC Scopus subject areas

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