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http://dx.doi.org/10.14190/JRCR.2020.8.4.596

Characteristics of Thermal Conductivity of Concrete Containing Fine Bottom Ash Aggregates  

Park, Ji-Hun (Department of Civil Engineering, Kunsan National University)
Jung, Hoe-Won (Department of Civil Engineering, Kunsan National University)
Yang, In-Hwan (Department of Civil Engineering, Kunsan National University)
Publication Information
Journal of the Korean Recycled Construction Resources Institute / v.8, no.4, 2020 , pp. 596-603 More about this Journal
Abstract
In this paper, an experimental study was conducted to investigate the applications of bottom ash, which is an industrial by-product obtained from thermal power plants. Bottom ash was used as fine aggregate in this study, and an experiment was conducted to determine the characteristics of the bottom ash aggregate. In addition, 25, 50, 75, and 100% contents of crushed (natural) fine aggregate were replaced with bottom ash aggregate to produce concrete mixture including bottom ash. Thereafter, test results of the unit weight, ultrasonic velocity, compressive strength, and thermal conductivity of bottom ash concrete were obtained. Moreover, the effect of the curing ages of 28 and 91 days on the material characteristics of bottom ash concrete were identified. Test results showed that bottom ash used as fine aggregate had pozzolanic reaction. Finally, based on the extensive experimental results, relationships between thermal conductivity and unit weight, ultrasonic velocity, and compressive strength was suggested.
Keywords
Bottom ash; Thermal conductivity; Ultra-sonic velocity; Unit weight; Compressive strength;
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Times Cited By KSCI : 2  (Citation Analysis)
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