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http://dx.doi.org/10.5345/JKIBC.2012.12.2.203

Properties of Hydration Heat of High-Strength Concrete and Reduction Strategy for Heat Production  

Jaung, Jae-Dong (Department of Architectural Engineering, Daegu University)
Cho, Hyun-Dae (Department of Architectural Engineering, Daegu University)
Park, Seung-Wan (Department of Architectural Engineering, Daegu University)
Publication Information
Journal of the Korea Institute of Building Construction / v.12, no.2, 2012 , pp. 203-210 More about this Journal
Abstract
Recently, the interest and demand for large-scale buildings and skyscrapers have been on the rise, and the performance of concrete is an area of high priority. Securing 'mass concrete and high strength concrete' is very important as a key construction technology. For high strength concrete, the high heat of hydration takes place inside the concrete because of the vitality of hydration in cement due to the large amount of powder, and leads to problems such as an increase of thermal stress due to the temperature difference with the outside, which results in cracks and slump loss. For this reason, measures to solve these problems are needed. This study aims to reduce the hydration heat of high strength concrete to control the hydration heat of mass concrete and high strength concrete, by replacing the type of admixture, The purpose of this study is to control the hydration heat of high strength concrete and mass concrete. Our idea for this purpose is to apply not only the types and contents of admixture but also incorporation mixing water to ice-flake. As a result of the test, the use of blast furnace slag and fly ash as admixture, and the use of ice-flake as mixing water can improve the liquidity of concrete and reduce slump loss. Significantly dropping the maximum temperature will contribute greatly to reducing cracks due to hydration heat in mass concrete and high strength concrete, and improve quality.
Keywords
high-strength concrete; mass concrete; heat of hydration; ice-flake;
Citations & Related Records
Times Cited By KSCI : 6  (Citation Analysis)
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