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Çѱ¹°ÇÃà½Ã°øÇÐȸ / v.9, no.6, 2009³â, pp.71-78
°í·Î½½·¡±×¹ÌºÐ¸»À» È¥ÀÔÇÑ ÄÜÅ©¸®Æ®ÀÇ ¿°ºÐħÅõ¼º¿¡ ¹ÌÄ¡´Â ¾ÐÃàÇÏÁßÀÇ ¿µÇâ
( Effect of Compressive Loading on the Chloride Penetration of Concrete Mixed with Granulated Blast Furnace Slag )
±èµ¿ÈÆ;ÀÓ³²±â;È£¸®±¸Ä¡ ´ÙÄ«½Ã; ÀϺ»±¹¸³ ȪīÀ̵µ´ëÇдëÇпø °øÇבּ¸°ú;µ¿¸í´ëÇб³ °ÇÃà´ëÇÐ °ÇÃà°øÇаú;ÀϺ»±¹¸³ ȪīÀ̵µ´ëÇдëÇпø °øÇבּ¸°ú;
 
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ÇÏÁßÀ» °í·ÁÇÑ ¿°ºÐħÅõ¼ºÀÇ Æò°¡°¡ ´ë´ÜÈ÷ Áß¿äÇÑ °ÍÀ¸·Î È®ÀεǾú´Ù. º» ¿¬±¸¿¡¼­´Â ¾ÐÃàÀÀ·ÂÇÏ¿¡¼­ PlainÄÜÅ©¸®Æ®¿¡¼­´Â 47%Á¤µµ, BFSÄÜÅ©¸®Æ®¿¡¼­´Â 89%Á¤µµ Áõ°¡ ÇÏ´Â °ÍÀ¸·Î ³ªÅ¸³µ´Ù. ¹«ÇÏÁß »óÅ¿¡¼­ BFS¸¦ È¥ÀÔÇÑ ÄÜÅ©¸®Æ®ÀÇ È®»ê°è¼ö°¡ BFS ¹«È¥ÀÔ ÄÜÅ©¸®Æ®¿¡ ºñÇØ ÀûÀº °ÍÀÌ È®ÀεǾú´Ù. ÀÌ·¯ÇÑ ¿µÇâÀº ¾ÐÃàÀÀ·ÂÀÌ ¹ß»ýÇϴ ȯ°æÇÏ¿¡¼­µµ °°Àº °æÇâÀ» ³ªÅ¸³»¾ú´Ù. ¾ÐÃàÀÀ·ÂÀÌ ÀÛ¿ëÇϴ ȯ°æ ÇÏ¿¡¼­ BFSÄÜÅ©¸®Æ®´Â PlainÄÜÅ©¸®Æ®¿Í °°ÀÌ ÇÏÁßÀÇ Áõ°¡¿Í ÇÔ²² È®»ê°è¼ö°¡ Áõ°¡ÇÏ´Â °ÍÀ¸·Î È®ÀÎ µÇ¾ú´Ù. ¶ÇÇÑ, PlainÄÜÅ©¸®Æ®¿¡ ºñÇØ ¾ÐÃàÇÏÁßÀÇ ¿µÇâÀ» Å©°Ô ¹Þ´Â °ÍÀ¸·Î È®ÀÎ µÇ¾ú´Ù. BFSÀÇ ºñÇ¥¸éÀûÀÌ ³ôÀ»¼ö·Ï È®»ê °è¼ö°¡ ÀÛÀº °ÍÀ¸·Î È®ÀεǾú°í, ÀÌ·¯ÇÑ °æÇâÀº °íÀÀ·Â ȯ°æ¿¡¼­ ÇöÀúÈ÷ ³ªÅ¸³ª´Â °ÍÀÌ È®ÀεǾú´Ù. BFSÀÇ Ä¡È¯À²ÀÌ Áõ°¡ÇÒ¼ö·Ï È®»ê°è¼ö°¡ ÀÛÀº °ÍÀÌ È®ÀεǾú´Ù. ¶ÇÇÑ, ¾ÐÃàÀÀ·ÂÀÌ ÀÛ¿ëÇϴ ȯ°æ ÇÏ¿¡¼­ BFSÀÇ Ä¡È¯¿¡ ÀÇÇÑ ¿°ºÐħÅõ¼ºÀÇ ¾ïÁ¦ È¿°ú°¡ ´õ¿í ´õ ÇöÀúÈ÷ ³ªÅ¸³ª´Â °ÍÀ¸·Î È®ÀεǾú´Ù.
The analysis of the effect of loading on chloride penetration into concrete is very important. In this study, we confirmed that the chloride penetration rates for plain and BFS concrete were increased by 47% and 89% under compressive stress, respectively. The diffusion coefficient of BFS concrete was lower than for conventional concrete with no BFS, no loads, and under stressed states. Therefore, BFS substitution plays an important role in the repression of chloride penetration even under compressive stress. Under compressive stress,the diffusion coefficient for BFS concrete was higher with increasing stress, and this was also the case for plain concrete. However, BFS concrete was strongly influenced by compressive stress in comparison to plain concrete. We investigated the effect of the difference of specific surfaces on the diffusion coefficient. As a result, the larger specific surface of BFS exhibited a lower diffusion coefficient. This tendency was most pronounced under the high stress conditions.
 
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¿°ºÐħÅõ¼º;È®»ê°è¼ö;°í·Î½½·¡±×;¾ÐÃàÀÀ·Â;Àü±â¿µµ¿½ÃÇè;Chloride Penetration;Diffusion Coefficient;BFS;Compressive Stress;Non-Steady Migration Test;
 
Çѱ¹°ÇÃà½Ã°øÇÐȸÁö / v.9, no.6, 2009³â, pp.71-78
Çѱ¹°ÇÃà½Ã°øÇÐȸ
ISSN : 1598-2033
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO200919038644017)
¾ð¾î : Çѱ¹¾î
³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø
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