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Advances in Materials Science and Engineering
Volume 2017 (2017), Article ID 5853687, 10 pages
https://doi.org/10.1155/2017/5853687
Research Article

Combustion and Mechanical Properties of Polymer-Modified Cement Mortar at High Temperature

1Hazard Mitigation Evaluation Technology Center, Korea Conformity Laboratories, Cheongju 28115, Republic of Korea
2Department of Building System Engineering, Kangwon National University, Samcheok 25913, Republic of Korea

Correspondence should be addressed to Won-Jun Park

Received 22 March 2017; Accepted 7 June 2017; Published 11 July 2017

Academic Editor: Michele Zappalorto

Copyright © 2017 Hyung-Jun Kim and Won-Jun Park. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

Although polymer-modified cement mortar (PCM) has been extensively used as finishing and repairing material, it is necessary to understand its combustion properties and mechanical properties at high temperature. This study evaluated the combustion characteristics with varying experimental parameters such as polymer type, unit polymer content, polymer-cement ratio, and thickness of the specimen. This study also evaluated the compressive strength and elastic modulus of PCMs with focus on the effects of the type of polymer, unit polymer content, and polymer-cement ratio. As a result, the incombustibility of the PCM was in the following order: SBR < VVA < EVA. After heating end, the mass loss rate of the PCM was less than 30%, regardless of the polymer type, unit polymer content, and W/C. In heat release rate test, the higher the unit polymer content, the greater the total heat release, regardless of the difference in W/C. The PAE series showed excellent fire resistance in the temperature range of 200~400°C. PCMs with a unit polymer content of 5%, modified with EVA and PAE, showed outstanding compressive strength at 200~400°C. At elevated temperature, the modulus of elasticity of PCM declined with an increase in the unit polymer content, regardless of the polymer type.