モルタル試験体の静曲げ強度と衝撃曲げ強度との関係について

概要

論文の詳細を見る
The purpose of this investigation was to examine what factors exert influence on the dynamic flexural strength of various mortar specimens, which was determined by a drop hammer testing apparatus. The results obtained were summarized as follows : (1) The dynamic flexural strength of mortar specimens increased up to the age of 7 days. (2) When mortar specimens had the same static flexural strength, their dynamic flexural strength was hardly influenced by the ratio of sand to cement, S/C. For the specimens having the same S/C, the ones with a large ratio of water to cement W/C were stronger on dynamic flexural strength than the ones with a small W/C, even though the static flexural strength of the latter was large. (3) The dynamic flexural strength was not interrelated to the static flexural strength, but inter-related to the first or the second kink point of the load-strain curve of bonding specimens with a notch. The dynamic flexural strength depended on the magnitude of the energy absorbed till the first or the second kink point.
社団法人日本材料学会の論文
1980-08-15