Volume Change of Limestone and its Effects on Drying Shrinkage of Concrete

Abstract:

Recently, the cracks of concrete by drying shrinkage become one of the problems in the construction industry in Japan. The drying shrinkage decreases when the concrete is produced with limestone aggregate. However, it is not clear why the drying shrinkage is decreased. The purpose of this study is to clarify the relation between the drying shrinkage of concrete and the limestone aggregate. In this study, the experiments about the strength, elasticity and drying shrinkage of concrete and the physical properties and shrinkage of coarse aggregates were conducted. It is thought that the volume change of aggregates affects directly the drying shrinkage in concrete.

• Periodical: Advanced Materials Research (Volumes 168-170)
• Pages: 738-741
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.168-170.738
• Online since: December 2010
• Authors: Shogo Yagi, Carlos Aquino, Masumi Inoue, Takahisa Okamoto
• Keywords: Coarse Aggregate, Drying Shrinkage, Limestone, Volume Change, Water Absorption

References

[1] Limestone association of Japan, Limestone aggregate and concrete, (2005) p.18.

[2] Y. Goto and T. Fujiwara: Volumetric change of aggregates by absorption and drying, Japanese Society of Civil Engineering, Vol. 247, No. 3 (1976), pp.97-108.

DOI: 10.2208/jscej1969.1976.247_97

[3] Y. Goto and T. Fujiwara: Effect of aggregate on drying shrinkage of concrete, Japanese Society of Civil Engineering, Vol. 286, No. 6 (1979), pp.125-137.

DOI: 10.2208/jscej1969.1979.286_125