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http://dx.doi.org/10.14190/JRCR.2014.2.2.100

Study on the High Temperature Properties of Fireproof Mortar Using Various Types of Fine Aggregate  

Lim, Seo-Hyung (Department of Architectural Engineering, Gyeongnam National University of Science and Technology)
Publication Information
Journal of the Korean Recycled Construction Resources Institute / v.2, no.2, 2014 , pp. 100-106 More about this Journal
Abstract
High strength concrete has a structural advantage as well as superior usability and durability, so that its application in building is being steadily augmented. However, in the high temperature like in a fire, the high strength concrete has extreme danger named explosive spalling. It is known that the major cause of explosive spalling is water vapour pressure inside concrete. General solution for preventing concrete from spalling include applying fire protection coats to concrete in order to control the rising temperature of members in case of fire. The purpose of this study is to investigate the high temperature properties of fireproof mortar using organic fiber and various types of fine aggregate for fire protection covering material. The results showed that addition of perlite and polypropylene fiber to mortar modifies its pore structure and reduces its density. This causes the internal temperature to rise. As a results, it is found that a new fireproof mortar can be used in the fire protection covering material in high strength concrete.
Keywords
Fine Aggregate; Fire Resistance Covering; High Strength Concrete; Explosive Spalling; Mortar;
Citations & Related Records
Times Cited By KSCI : 10  (Citation Analysis)
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