Optimized Ultra High Performance Fiber Reinforced Concrete Mixture with Intensified Volumetric Stability

Jung Jun Park; Doo Yeol Yoo; Jun Hyoung Park; Sung Wook Kim

doi:10.4028/www.scientific.net/KEM.627.389

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HomeKey Engineering MaterialsKey Engineering Materials Vol. 627Optimized Ultra High Performance Fiber Reinforced...

Optimized Ultra High Performance Fiber Reinforced Concrete Mixture with Intensified Volumetric Stability

Abstract:

This study performed compressive, tensile and restrained shrinkage tests to find out the optimized mixture including shrinkage reducing admixture (SRA) and expansive admixture (EA) enabling to reduce the shrinkage of Ultra High Performance Fiber Reinforced Concrete (UHPFRC). The test results showed that the mixture using 1% of SRA and 7.5% of EA satisfied the design strength criterion despite of slight loss in the compressive and tensile strengths. In addition, this mixture exhibited the lowest restrained shrinkage strain by offsetting the quick setting and delaying the development of the restrained shrinkage stress.

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Periodical:

Key Engineering Materials (Volume 627)

Pages:

389-392

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.627.389

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Online since:

September 2014

Authors:

Jung Jun Park, Doo Yeol Yoo, Jun Hyoung Park, Sung Wook Kim

Keywords:

Expansive Admixture, Restrained Shrinkage, Shrinkage Reducing Admixture, Ultra High Performance Fiber Reinforced Concrete

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References

[1] J.J. Park, D.Y. Yoo, S.W. Kim and Y.S. Yoon: Drying Shrinkage Cracking Characteristics of Ultra-High Performance Fiber Reinforced Concrete with Expansive and Shrinkage Reducing Agents, Magazine of Concrete Research, Vol. 65 (2013a), pp.248-256.

DOI: 10.1680/macr.12.00069

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[2] J.J. Park, D.Y. Yoo, S.W. Kim and Y.S. Yoon: Benefits of Using Expansive and Shrinkage-Reducing Agents in UHPC for Volume Stability, Magazine of Concrete Research, In Press (2014).

DOI: 10.1680/macr.13.00317

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[3] J.J. Park, D.Y. Yoo, S.W. Kim and Y.S. Yoon: An Evaluation on the Restrained Shrinkage of Ultra-High Performance Concrete, Key Engineering Materials, Vol. 525-526 (2013b), pp.242-245.

DOI: 10.4028/www.scientific.net/kem.525-526.449

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[4] S.H. Park, D.J. Kim, K.T. Koh and G.S. Ryu: Influence of adding shrinkage reducing agent on the interfacial bond strength of steel fibers embedded in UHPC, Proceedings of the Korea Concrete Institute, Vol. 24, No. 2 (2012), pp.535-536. (in Korean)

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