Departmental Bulletin Paper コンクリート中の粗骨材とモルタル界面の付着に関する一検討 ―付着応力と付着ひずみの推定―

熊野, 知司  ,  田中, 遼

When describing deformation properties of concrete, it is important to make the bond characteristics of a coarse aggregate and the surrounding mortar clear. In this paper, taking notice of the small embedding type gage for the purpose of measuring strain of the coarse aggregate in the concrete, a compression loading test of the test piece which arranged embedded coarse aggregate in the concrete was carried out. As a result, it became clear that the strain of coarse aggregate consisted of the test piece strain slightly small and that the bond stress generated in the tensile direction in phase boundary around the equator of coarse aggregate and the bond strain seemed to cause micro cracking from small stress area.

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