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http://dx.doi.org/10.14190/JRCR.2022.10.1.111

Study on the Modification Effect of Lightweight Aggregate using Blast Furnace Slag  

Kim, Ho-Jin (Department of Architectural Engineering, Mokwon University)
Park, Sun-Gyu (Department of Architectural Engineering, Mokwon University)
Publication Information
Journal of the Korean Recycled Construction Resources Institute / v.10, no.1, 2022 , pp. 111-116 More about this Journal
Abstract
Recently, building structures tend to be super high-rise and large-scale with the development of concrete technology. When high-rise building is constructed of reinforced concrete structure, it has a disadvantage that its own weight increases. Light weight aggregate(LWA) was developed to compensate for these shortcomings. Manufacturing concrete using these light weight aggregates has the advantage of reducing the self weight of the reinforced concrete structure, but has a disadvantage in that the strength of the concrete is reduced. In this study, an experimental study was conducted to investigate the strength characteristics of hardened cement according to the presence or absence of surface coating of lightweight aggregates. As a result, in terms of compressive strength, the surface-coated lightweight aggregate exhibited higher strength than the uncoated lightweight aggregate. Also, it was considered that this is because the interfacial voids of the surface coated lightweight aggregate mixed cement hardened body were filled with blast furnace slag fine powder particles.
Keywords
High rise building; Weigth increase; Light weight aggregate; Surface coating;
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Times Cited By KSCI : 2  (Citation Analysis)
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