Pore struじture and mois 重 ure conten 重of concre 足 c slabs wi 【 h different water − cement ra重 io and drying conditions were studied to find the appropria 重o curing condi 重 ions for floor finishings . Decrease of mois 重 ure content of concrete wi 重 hin 2 . 5 cm frQm the drying surface was conspicuous and a portion O. 5 cm beiow 重 he surface reached 2. 5% wi 重 hin 14 days whereas a portion deeper than 7. 5 cm was almos 吐 unchanged after 重 he self desicalion was ma 田 red . The densification of pore stmcture Qwing 10 吐 he hydratiQn of cemen ! was possible when a finishing was upp ] ied at lhe age of I day , whereas no densi丘cation was observed leaving coarse pores due to an insufficient hydra重 ion when a finishing was applied after 3 days. In order to solve an incompatibility f()r a concrete slab to assure sufficicnt hydra且ion f{)r strength and durability and sufficient drying as a subs 重ratum of finishings , i巨 s recommended lo have a moist curing fbr 7 duys after placing followed by a drying .
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