Advanced SearchSearch Tips
Performance Improvement of High Performance Shrinkage Reducing Agent using Early Strength Improving Agent
facebook(new window)  Pirnt(new window) E-mail(new window) Excel Download
 Title & Authors
Performance Improvement of High Performance Shrinkage Reducing Agent using Early Strength Improving Agent
Park, Jong-Pil; Jung, Yong-Wook;
  PDF(new window)
Studies aimed at reducing the occurrence of cracks by the shrinkage of concrete are in demand because the repair and reinforcement for cracks caused by declining concrete durability costs the user to maintain the concrete structure. In particular, in underground power facilities for power transmission, the cost is a heavy burden to repair and reinforce. For this reason, underground power facilities demanded effective methods for crack reduction at the engineering design step. This study, as a part of the development of shrinkage reducing agent for low shrinkage concrete on underground power facilities, investigated TEA to complement the shrinkage reducing agent to improve the early strength of concrete. In the case of TEA 3% as a shrinkage reducing agent, the early strength was improved significantly, and the shrinkage reducing effect was excellent. In addition, TEA 3.0 % and the shrinkage reducing agent 2.0 % showed excellent shrinkage property and compressive strength. On the other hand, more study of shrinkage reducing materials, including performance reviews on the shrinkage reducing materials with variable factors and type of materials, will be needed to generalize these results.
Crack;Durability;Drying shrinkage;Shrinkage reducing agent;Shrinkage reducing materials;
 Cited by
W. Hansen, Drying shrinkage mechanisms in portland cement paste, Journal of the American Ceramic Society, 70(5), pp. 323-328, 1987. DOI: crossref(new window)

M. Y. Han, Shrinkage mechanisms and role of water, Journal of Korea Concrete institute, 3(2), pp. 46-52, 1991.

Z. P. Bazant, S. Baweja, Creep and shrinkage prediction model for analysis and design of concrete structures; Model B3, Materials and structures, 29(2), pp. 126, 1996. DOI: crossref(new window)

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.

N. C. Han, Estimation of the Auto genous 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, 2007. crossref(new window)

I. S. Hwong, N. 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.

T. B. Min, I. S. Cho, H. S. Lee, Experimental Study on the Early Strength Development Mechanism of Cement Paste Using Hardening Accelerator and High-Early-Strength Cement, Journal of Korea Institute for Structural Maintenance and Inspection, 18(1), pp. 84-92, 2014. DOI: crossref(new window)