抄録
In this study, the investigation to find out the evaluation index of drying shrinkage strain of aggregate was carried out. The following findings were obtained as the results. (1) Air-dried moisture content and specific surface area of fine and coarse aggregates, direct measurements of drying shrinkage strain of coarse aggregate etc. correlate highly with the drying shrinkage strain of law stone of aggregate. Therefore, these values can be used as the evaluation index of drying shrinkage strain of aggregate. (2) Some aggregates not corresponding well to drying shrinkage of aggregate are invariably to be found in case of all evaluation indexes. Consequently this fact should be taken into consideration in estimating the drying shrinkage strain of aggregate. (3) The drying shrinkage strain of aggregate has a direct effect on that of concrete.
