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.