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http://dx.doi.org/10.14190/JRCR.2014.2.2.152

Evaluation of Shrinkage of Heavyweight Magnetite Concrete with Fly Ash  

Mun, Jae-Sung (Department of Architectural Engineering, Kyonggi University Graduate School)
Yang, Keun-Hyeok (Department of Plant.Architectural Engineering, Kyonggi University)
Lee, Hyun-Ho (Department of Architecture and Fire Administration, Dongyang University)
Kim, Sang-Chel (Department of Civil Engineering, Hanseo University)
Publication Information
Journal of the Korean Recycled Construction Resources Institute / v.2, no.2, 2014 , pp. 152-157 More about this Journal
Abstract
The objective of this study is to examine the drying shinkage and autogenuous shrinkage strains of heavyweight magnetite concrete. As a main parameters, cement was partially replaced by fly ash (FA) from 5% to 35%. The measured shrinkage strains were compared with predictions obtained from CEB-FIP equations and Yang et al.'s model. Test results showed that the magnitite of the autogenous and total shrinkage strains of heavyweight concrete slightly increased as the amount of fly ash increases up to 15%, beyond which the strains tended to decrease. The CEB-FIP equations considerably underestimated the shrinkage behavior of heavyweight concrete, indicating that this trend was more notable with the age. On the other hand, Yang et al.'s model predicted accurately the shrinkage of heavyweight concrete.
Keywords
Shrinkage; Magnetite aggregates; Heavyweight concrete; Fly ash;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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