Volume change of limestone and its effects on drying shrinkage of concrete

Conference object English OPEN
YAGI, Shogo ; AQUINO, Carlos ; INOUE, Masumi ; OKAMOTO, Takahisa (2010)
  • Publisher: Trans Tech Publications
  • Journal: Advanced Materials Research, volume 168/170, pages 738-741
  • Subject: Limestone | Coarse aggregate | Volume change | Water absorption

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.
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