セメント硬化体の乾燥の程度と乾燥収縮ひずみの関係 : 材令及び水セメント比の影響

概要

論文の詳細を見る
The dynamic shrinkage-water loss curves for thin cement paste specimens (4×0.4×15cm) with 0 35, 0 45, 0 55 and 0 65 W/C ratio at the age of 3, 7, 28, 77 and 186 days, respectively were investigated under the drying condition of nearly 0 % rh It was found that the S-W curves were constructed of three phases The shape of the curves at an early stage of drying was considerably affected by the water cement ratio and the age at the start of drying These phenomena were able to be expressed unitanly by the ratio of, the amount of free water to the amount of evaporable water in a specimen The shape of the curves in the later half of drying with no free water in a specimen was hardly affected by the water cement ratio and the age at the start of drying It was found that the drying shrinkage strain at each stage of drying was proportional to the combined water rate
社団法人日本建築学会の論文
1993-09-30