Research Articles | Challenge Journal of Concrete Research Letters

Recent Status of Research and Development of Concrete-Polymer Composites in Japan

Muhammad Aamer Rafique Bhutta, Yoshihiko Ohama
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Abstract


The present paper reviews the recent status of research and development activities of concrete-polymer composites such as polymer-modified concrete (mortar), polymer concrete (mortar) and polymer-impregnated concrete (mortar) in the Japanese construction industry. Polymer-modified concrete (mortar) comprise of repair systems for deteriorated reinforced concrete structures, strengthening (or retrofitting) methods and exfoliation (or delamination) prevention methods for existing reinforced concrete structures, liquid-applied membrane waterproofing systems, advanced polymeric admixtures such as high-grade redispersible polymer powders and  hardener-free epoxy resins, intelligent repair materials, application of accelerated curings, semiflexible pavements, and drainage pavements with photocatalyst. Polymer mortar and concrete are related to new liquid resins, setting shrinkage control, thermal properties and temperature dependence, lightweight or porous polymer mortars and concretes, artificial marble products and precast products. The polymer-impregnated mortar and concrete are mainly concerned with field polymer impregnation techniques using silane-based barrier penetrants.


Keywords


concrete-polymer composites; polymer-modified concrete (mortar); polymer concrete (mortar); polymer-impregnated concrete (mortar); research and development

References


Ohama, Y., Recent Research and Development of Trends of Concrete-Polymer Composites in Japan, Proceedings of 12th International Congress on Polymers in Concrete, Volume I, Chuncheon, Korea, Sept. 2007, pp.37-45.

Dr. M. Aamer Rafique Bhutta and Dr. Yoshihiko Ohama, Status of the Recent Research and Development of Concrete-Polymer Composites in Japan, Proceedings of the International Workshop on Cement Based Materials & Civil Infrastructure (CBM-CI), NED Engineering University, Karachi, Pakistan, Dec. 2007, pp. 289-294.

Ohama, Y., (Recent Trends in Research and Development of Polymer-Modified Mortar and Concrete in Japan.) Proceedings of the 5th Asian Symposium on Polymers in Concrete, Volume I, Structural Engineering Research Centre, CSIR Campus, Chenai, India, 2006, pp.3-11.

Ohama, Y., (Recent Trends in Research and Development in Polymer Mortar and Concrete in Japan) in Proceedings of 6th International Symposium on Cement & Concrete, Contributing to Global Sustainability, Volume 3, XI’AN, China, (2006), pp.1651-1655.


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