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Materials 2019, 12(8), 1240; https://doi.org/10.3390/ma12081240

Shrinkage and Durability Evaluation of Environmental Load-Reducing FRPCM by Using Silicone Oil

1
School of Architecture, Kyungpook National University, 80 Daehakro, Bukgu, Daegu 41566, Korea
2
Department of Civil and Environmental Engineering, Kitami Institute of Technology, 165 Koencho, Kitami, Hokkaido 090-8507, Japan
3
Intelligent Construction Automation Center, Kyungpook National University, 80 Daehakro, Bukgu, Daegu 41566, Korea
4
School of Architecture and Civil Engineering, Kyungpook National University, 80 Daehakro, Bukgu, Daegu 41566, Korea
*
Author to whom correspondence should be addressed.
Received: 27 March 2019 / Revised: 10 April 2019 / Accepted: 11 April 2019 / Published: 15 April 2019
(This article belongs to the Section Construction and Building Materials)
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Abstract

In this study, the shrinkage and durability of environmental load-reducing fiber-reinforced polymer cement mortar (FRPCM) were examined by using silicone oil. The results indicated that the shrinkage can be greatly reduced by adding silicone oil. However, when the silicone oil is added in excess, it affects the strength and durability. Therefore, it is possible to obtain the ECO-FRPCM which gives the effect of reducing the shrinkage and maintaining the strength and durability by adding 3% of silicone oil. From the viewpoint of shrinkage reduction, the use of silicone oil is effective as a substitute for an expansive additive or shrinkage reducing agent used in ECO-FRPCM. Also, by appropriately using silicone oil in combination with an expansive additive or a shrinkage reducing agent, shrinkage can be effectively reduced as compared with the conventional ECO-FRPCM. However, when the silicone oil and the shrinkage reducing agent are used in combination, the shrinkage cannot be efficiently reduced. It is considered that the combination of silicone oil and shrinkage reducing agent influences the mutual shrinkage reduction mechanism, but this needs to be further examined in the future. View Full-Text
Keywords: FRPCM; silicone oil; expansive additive; shrinkage reducing agent; shrinkage; durability FRPCM; silicone oil; expansive additive; shrinkage reducing agent; shrinkage; durability
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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 (CC BY 4.0).
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Choi, H.; Choi, H.; Lee, B.; Lee, D.-E. Shrinkage and Durability Evaluation of Environmental Load-Reducing FRPCM by Using Silicone Oil. Materials 2019, 12, 1240.

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