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¹ÝÀüÀ§ÃøÁ¤°ú ¿°È¹° ÇØ¼®À» ÀÌ¿ëÇÑ ºñºÎ½Ä ÇǺ¹µÎ²²ÀÇ µµÃâ / Anti-corrosive Cover depth from Half Cell Potential and Chloride Penetration Analysis / session 9 : Æ÷½ºÅÍ ¼¼¼Ç |
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Çѱ¹°Ç¼³¼øÈ¯ÀÚ¿øÇÐȸ Çмú¹ßÇ¥ ³í¹®Áý, v.13 n.2 (2013-11) |
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½ÃÀÛÆäÀÌÁö(186) ÃÑÆäÀÌÁö(4) |
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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. |
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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. |