Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) Sagawa Takahiro and Ueki Yasutomo and Matsushita Tetsuro and Kanda Tetsushi and Yonezawa Toshio and Sakai Etsuo,Investigation of the Durability of 52 Year Aged RC Structures Constructed of Portland Blast-furnace Slag Cement Type-C,Concrete Research and Technology,1340-4733,Japan Concrete Institute,2017,28,0,47-59,https://cir.nii.ac.jp/crid/1390282679383397120,https://doi.org/10.3151/crt.28.47