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Architecture & Urban Research Institute

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¼ö·Ï»çÇ× Çѱ¹°Ç¼³¼øÈ¯ÀÚ¿øÇÐȸ Çмú¹ßÇ¥ ³í¹®Áý, v.13 n.2 (2013-11)
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¿ä¾à1 º» ¿¬±¸¿¡¼­´Â ÇǺ¹µÎ²²¸¦ 10, 30, 60mm, ¹°-½Ã¸àÆ®ºñ¸¦ 0.35, 0.55, 0.70À¸·Î º¯È­½ÃŲ RC ½ÃÆíÀ» ´ë»óÀ¸·Î ºñ¸»´ë Áö¿ªÀ» ¸ð»çÇÑ ÃËÁø¿°Çغй«½ÇÇèÀ» ¼öÇàÇÏ¿´´Ù. 45Àϰ£ÀÇ ÃËÁø ¿°ÇØ ºÐ¹«½ÃÇèÀ» ¼öÇàÇÑ µÚ, RC ½ÃÆí¿¡ ´ëÇÏ¿© ¹ÝÀüÀ§°ªÀ» ÃøÁ¤ÇÏ¿´´Ù. w/c 0.55 Á¶°Ç¿¡¼­ ÇǺ¹µÎ²²°¡ 10mmÀÎ RC ½ÃÆíÀº ºÎ½ÄÀÌ ¹ß»ýÇÏ¿´À¸¸ç, w/c 0.7ÀÎ °æ¿ì ÇǺ¹µÎ²² 30mmÀÎ ½ÃÆí¿¡¼­µµ ºÎ½ÄÀÌ ¹ß»ýÇÏ¿´´Ù. ½ÇÇè°á°ú¸¦ ÀÌ¿ëÇÏ¿© ¹°-½Ã¸àÆ®ºñ¿Í ÇǺ¹µÎ²²¸¦ º¯¼ö·Î ÇÏ´Â ¹ÝÀüÀ§ Æò°¡½ÄÀ» Á¦¾ÈÇÏ¿´À¸¸ç, ºñ¸»´ëÁö¿ª¿¡¼­ ºÎ½ÄÀ» ¾ïÁ¦ÇÒ ¼ö ÀÖ´Â Á¶°ÇÀ» µµÃâÇÏ¿´´Ù. ¶ÇÇÑ LIFE365¸¦ ÅëÇÑ ¿°È­¹° ħÅõÇØ¼®°á°ú¿Í ºñ±³ÇÏ¿´´Ù.
¿ä¾à2 In this study, RC specimens with three different cover depths(10mm, 30mm, and 60mm) and w/c ratios(0.35, 0.55, and 0.70) are prepared and accelerated salt spray test(SST) is performed for 45 days. Steel corrosion occurs in the specimens with 0.55 of w/c and 10mm of cover depth and 0.70 of w/c and 30mm of cover depth. Considering the effect of cover depth and w/c ratio, HCP evaluation equation is proposed and conditions which can prevent steel corrosion is obtained. The anti-corrosive conditions are compared with those from chloride penetration analysis using LIFE365.
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