ABSTRACT

HIROZO MIHASHI, NOBORU KOIDE and KAZUNOBTJ HIRAI Dept, of Architecture, Tohoku University, Sendai 980, Japan

TADASHI YAMAMOTO Electric Technology Res. & Dev. Center, Tohoku Electric

Power Company Inc., Sendai 980, Japan KAZUO MIZOGUCHI

Vinylon Sales Dept., Unitika Kasei Ltd., Osaka 54-1 > Japan

ABSTRACT Even though lots of strong fibers such as carbon, aramid and vinylon fibers are contained in mortar, they do not work as reinforcements unless the mortar itself and the mortar/fibre interface have sufficient strength. On the other hand, less weight materials which have often lower strength need to be effectively reinforced to resist the acting loads.