Abstract
The authors have been developing reinforced concrete masonry buildings with the wall thickness of 150mm, for the purpose of the increase of inner space of buildings, the decrease of building weight, and the usage of the standard building module of 300mm. In this paper, test results of laterally loaded bearing walls and wall girders with the standard reinforcement, using newly developed small-size concrete units with the thickness of 150mm, special pre-mixed cement mortal for the joints, and grout concrete of the strength of 60 N/mm2 class, are shown in detail.