Properties of Autogenous Shrinkage in High-Strength Mass Concrete According to Hydration Heat Velocity

Abstract:

The early-age properties and relationships between hydration heat and autogenous shrinkage in high-strength mass concrete are investigated through analysis of the history curves of hydration heat and autogenous shrinkage. To reduce the hydration heat velocity, micro encapsulated retarder (MR) that could retard cement reaction was applied. In the result of research, the hydration temperature and hydration heat velocity of high-strength mass concrete can be decreased with the reduction of size specimen and use of the retarder. A close relationship could be found between the hydration temperature and autogenous shrinkage; the higher the hydration heat velocity, the higher the autogenous shrinkage velocity and the greater the ultimate autogenous shrinkage.

• Periodical: Advanced Materials Research (Volumes 311-313)
• Pages: 1993-1999
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.311-313.1993
• Online since: August 2011
• Authors: Kyung Mo Koo, Gyu Yong Kim, Hiroyuki Miyauchi, Yeon Woo Kang
• Keywords: Autogenous Shrinkage, High Strength Mass Concrete, Hydration Heat Velocity

References

[1] . Aïtcin, P. C. (1999) Autogenous Shrinkage Measurement, Autogenous Shrinkage of Concrete, Ed. E. Tazawa, E&FN Spon, pp.257-268.

DOI: 10.1201/9781482272123-35

[2] . Bjøntegaard, Ø., Sellevold, E.J. and Hammer, T.A. (1997) High Performance Concrete at Early Ages: Selfgenerated Stresses Due to Autogenous Shrinkage and Temperature, In the Int. Semina : Self-desiccation and its Importance in Concrete Technology, Lund, Sweden, pp.1-7.

[3] . Horita, T. and Nawa, T. (2001) A Study on Autogenous Shrinkage of Cement Mixes, J. Struct. Constr. Eng., AIJ 542, pp.9-15.

[4] . Kim, G.Y., Lee, E.B, Koo, K.M. and Choi, H.G. (2008) A Fundamental Study on the Correlationship between Hydration Heat and Autogenous Shrinkage of High Strength Concrete at an Early Age, Journal of the Korea Concrete Institute 20(5), pp.593-600.

DOI: 10.4334/jkci.2008.20.5.593

[5] . Lee, E.B, Koo, K.M., Kim, G.Y., Lee, S.S., Song, H.Y. (2008) A Study on the Relationship between Hydration Heat and Autogenous Shrinkage of High Strength Concrete, The 7th International Symposium on Architectural Interchanges in Asia, pp.846-849.

[6] . Loukili, A., Chopin, D., Khelidj, A. and Touzo, J. L. (2000) A new approach to determine autogenous shrinkage of mortar at an early age considering temperature history, Cement and Concrete Research 30, pp.915-922.

DOI: 10.1016/s0008-8846(00)00241-6

[7] . Lothenbach, B., Winnefeld, F., Alder, C., Wieland, E. and Lunk, P. (2007) Effect of temperature on the pore solution, microstructure and hydration products of Portland cement pastes, Cement and Concrete Research 37, pp.483-491.

DOI: 10.1016/j.cemconres.2006.11.016