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http://dx.doi.org/10.5762/KAIS.2019.20.12.37

Development of Shrinkage Reducing Agent for 3D Printing Concrete  

Lee, Dong-gyu (Research & Development Center, Dongnam)
Yoo, Byung-Hyun (Research & Development Center, Dongnam)
Son, Ho-Jung (Research & Development Center, Dongnam)
Publication Information
Journal of the Korea Academia-Industrial cooperation Society / v.20, no.12, 2019 , pp. 37-43 More about this Journal
Abstract
Since 3D printed concrete can be constructed without formwork, it is easy to construct an atypical structure, and the construction time and labor cost can be reduced. However, since the construction is exposed to the outside, shrinkage cracking due to moisture loss inside and outside the concrete occurs. Therefore, in order to improve the durability of the 3D printed concrete, a shrinkage reduction plan of the 3D printed concrete is required. In this study, glycol-based and alcohol-based shrinkage reducing agents were fabricated and evaluated for their performance. The shrinkage reducing agent samples showing excellent performance were selected and applied to 3D printed concrete. As a result, the compressive strength was increased by more than 10% and the shrinkage was reduced by more than 36% when using a shrinkage reducing agent. It is expected that the production of high quality 3D printed concrete will be possible because it is possible to increase the compressive strength and reduce the amount of dry shrinkage by applying a shrinkage reducing agent for 3D printed concrete.
Keywords
3D Printing Conctere; Shrinkage; Shrinkage Reducing Agent; Crack; Durability;
Citations & Related Records
Times Cited By KSCI : 7  (Citation Analysis)
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1 P. J. Park, B. H. Yoo, H. J. Son, H. S. Han, "Shrinkage Properties of High strength Concrete Corresponding to Various Shrinkage Reducing Agent", Journal of Korea Concrete institute, Vol.28 No.2, pp.265-266, Oct. 2016.
2 H. J. Lee, W. W. Kim, J. H. Moon, "Study on Rheological Properties of Mortar for the Application of 3D Printing Method", Korea Recycled Construction Resources Institute, Vol.6 No.1, pp.16-24, March. 2018. DOI: https://doi.org/10.14190/JRCR.2018.6.1.16
3 B. H. Yoo, J. H. Shin, H. J. Son, D. G. Lee, H. S. Han, H. W. Choi "Development of Thixotropy Materials for 3D Printing Concrete", Journal of Korea Concrete institute, Vol.30 No.1, pp.549-550, May. 2018.
4 H. J. Lee, W. W. Kim, E. A. Seo, J. H. Moon "A Study on the Pore Distribution between Layer of 3D Printed Mortar", Journal of Korea Concrete institute, Vol.31 No.1, pp.595-560, May. 2019.
5 J. P. Park, Y. W. Jung, "Fundamental Properties on the Development of High Performance Shrinkage Reducing Agent for Concrete", Journal of Korea Academia-Industrial cooperation Society, Vol.16, No.6, pp.4298-4307, Jun. 2015. DOI: https://doi.org/10.5762/KAIS.2015.16.6.4298   DOI
6 M. C. Han, D. G. Lee "Strength and Autogenous Shrinkage of High Strength Mortar Using Water Substituting Liquid", Journal of the Korea Institute of Building Construction, Vol.11 No.6, pp.538-546, Sep. 2011. DOI: https://doi.org/10.5345/JKIBC.2011.11.6.538   DOI
7 A. Safat, R. Gianluca, V Zora "SShrinkage effects on the flexural stiffness of composite beams with solid concrete slabs: An experimental study", Engineering Structures, Vol.33 No.4, pp.1302-1315, April. 2011. DOI: https://doi.org/10.1016/j.engstruct.2011.01.007   DOI
8 B. H. Yoo, H. S. Han, D. G. Lee, "Investigation of Fundamental Properties for Development of Chemical Admixture of 3D Printing Concrete", Journal of Korea Concrete institute, Vol.29, No.2, pp.555-556, Oct. 2017.
9 J. P. Park, Y. W. Jung, "Performance Improvement of High Performance Shrinkage Reducing Agent using Early Strength Improving Agent", Journal of Korea Academia-Industrial cooperation Society, Vol.17, No.4, pp.296-302, April. 2016. DOI: https://doi.org/10.5762/KAIS.2016.17.4.296   DOI
10 M. C. Han, "Estimation of the Autogenous Shrinkage of the High Performance Concrete Containing Expansive Additive and Shrinkage Reducing Agent", Journal of Korea institute of building construction, 7(3), pp. 123-130, Sep. 2007. DOI: https://doi.org/10.5345/JKIC.2007.7.3.123   DOI
11 I. S. Hwang, M. C Han, C. G Han, "Properties of Drying Shrinkage of Concrete with Unit Water and Contents of Shrinkage Reducing Admixtures", Journal of Architectural institute of korea, 20(6), pp. 75-82, 2004.
12 S. H. Lee, "Properties of Reducing Drying Shrinkage by Using Shrinkage Reducing Agent", Journal of Korean society of civil engineers, 16(1-4), pp. 435-443, 1996.
13 P. J. Park, B. H. Yoo, Y. H. Kwon, H. S. Han, "Fundamental Properties of Concrete Corresponding to Various Shrinkage Reducing Materials", Journal of Korea Concrete institute, Vol.26 No.2, pp.315-316, Oct. 2014.   DOI