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A Study of Shrinkage Characteristics of Low Shrinkage Normal Strength Concrete With Boundary Restraint Condition
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 Title & Authors
A Study of Shrinkage Characteristics of Low Shrinkage Normal Strength Concrete With Boundary Restraint Condition
Jeong, Jun-Young; Min, Kyung-Hwan; Lee, Dong-Gyu; Choi, Hong-sik;
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 Abstract
In this study, the replacement effects of cementitious materials (fly ash, blast furnace slag, and blended mixtures) were assessed for normal strength concrete with very low shrinkage properties under strain using a powder type shrinkage reducing agent. In addition, through mock-up tests of actual size walls restrained with four sides, the shrinkage characteristics using the power type shrinkage reducing agent were measured and the crack reducing ability was assessed. The slump and air contents were measured as the properties of fresh concrete, and the length changes of the prismatic specimens, in size, were measured for the shrinkage characteristics. To reduce the shrinkage of concrete, the maximum replacing ratio of the fly ash is effective to 20 percent; however, the use of blast furnace slag and ternary mixtures did not reduce the shrinkage.
 Keywords
Blast furnace slag;Curing temperature;Fly-ash;Low shrinkage concrete;Ternary Mixtures;
 Language
Korean
 Cited by
 References
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