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Çѱ¹µµ·ÎÇÐȸ / v.13, no.3, 2011³â, pp.1-6
ȯ°æÁ¶°ÇÀÌ ¾ËÄ®¸®-½Ç¸®Ä« ¹ÝÀÀ¿¡ ÀÇÇÑ ¸ð¸£Å¸¸£ ºÀ ±æÀÌ ÆØÃ¢¿¡ ¹ÌÄ¡´Â ¿µÇâ
( Effect of Environmental Conditions on Expansion of Mortar-bar by Alkali-Silica Reaction )
±è¼º±Ç;À±°æ±¸;È«½ÂÈ£;°­¹®½Ä; °­¿ø´ëÇб³ Åä¸ñ°øÇаú;°­¿ø´ëÇб³ Åä¸ñ°øÇаú;Çѱ¹µµ·Î°ø»ç µµ·Î±³Å뿬±¸¿ø ¿¬±¸Àü·«½Ç Æ÷ÀåÆÀ;Çѱ¹µµ·Î°ø»ç ¼³°èó ³ì»öȯ°æÆÀ;
 
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±¹³»¿¡¼­´Â ÄÜÅ©¸®Æ® Æ÷Àå¿ë ±½Àº °ñÀ縦 ´ë»óÀ¸·Î È­ÇÐÀûÀÎ ½ÃÇè¹æ¹ý°ú ¸ð¸£Å¸¸£ ºÀ ½ÃÇè¹æ¹ýÀ» ÀÌ¿ëÇÑ °á°ú ¾ËÄ®¸®-½Ç¸®Ä« ¹ÝÀÀ À¯ÇØ °¡´É¼ºÀÌ ³·Àº °ÍÀ¸·Î ¾Ë·ÁÁ® ¿ÔÀ¸³ª, ÃÖ±Ù¿¡ ¾ËÄ®¸® - ½Ç¸®Ä« ¹ÝÀÀ¿¡ ÀÇÇÑ ÆÄ¼ÕÀÌ ¹ß»ýµÇ¾ú°í, ASTM C 1260À» ÀÌ¿ëÇÑ °á°ú ÀϺΠ°ñÀç¿¡¼­ À¯ÇØÇÑ ÆØÃ¢ÀÌ ¹ß»ýµÈ´Ù°í º¸°íµÇ¾ú´Ù. µû¶ó¼­ º» ³í¹®¿¡¼­´Â ¸ð¸£Å¸¸£ ºÀ ½ÃÇè¹æ¹ýÀÎ KS F 2546°ú ASTM C 1260À» ÀÌ¿ëÇÏ¿© ±æÀÌ ÆØÃ¢ À¯µµ±â°£ÀÇ È¯°æÁ¶°ÇÀÌ ¾ËÄ®¸® - ½Ç¸®Ä« ÆØÃ¢ ¹ÝÀÀ Ư¼º¿¡ ¹ÌÄ¡´Â ¿µÇâÀ» Æò°¡ÇϰíÀÚ ÇÏ¿´´Ù. KS F 2546ÀÇ °æ¿ì ´ë»ó °ñÀç ¸ðµÎ ¹ÝÀÀ¼º ¾øÀ½À¸·Î ÆÇÁ¤µÇ¾úÀ¸³ª ASTM C 1260¿¡¼­´Â ÀϺΠ°ñÀç¿¡¼­ ÀáÀç¹ÝÀÀ¼º ÀÌ»óÀ¸·Î ÆÇÁ¤µÇ¾ú´Ù. ÀÌ´Â ¿ÜºÎ·ÎºÎÅÍÀÇ ¾ËÄ®¸® ÀÌ¿ÂÀÇ °ø±Þ, ¿Âµµ ¹× ½Àµµ Â÷ÀÌ¿¡ ÀÇÇÏ¿© ¹ß»ýÇÑ °ÍÀ¸·Î ÆÇ´ÜµÈ´Ù. ¶ÇÇÑ ASTM C 1260¿¡¼­ NaOHÀÇ ³óµµº¯È­ ½ÇÇèÀ» ÅëÇÏ¿© NaOHÀÇ ³óµµ°¡ Áõ°¡ÇÒ¼ö·Ï ±æÀÌÆØÃ¢ÀÌ ÇöÀúÇÏ°Ô Áõ°¡ÇÑ´Ù´Â °ÍÀ» È®ÀÎÇÏ¿´À¸¸ç, ¿Âµµ ¹× ½Àµµ°¡ Áõ°¡ÇÔ¿¡ µû¶ó ±æÀÌÆØÃ¢ÀÌ Áõ°¡ÇÑ´Ù´Â °ÍÀ» È®ÀÎÇÏ¿´´Ù.
The possibility of ASR(alkali-silica reaction) for coarse aggregates had known to be low up to recently in Korea. But the distress of ASR was identified and reported by ASTM C 1260 test. The purpose of this paper was to identify the effect of environmental conditions on length expansion of mortar-bar by alkali-silica reaction with KS F 2546 and ASTM C 1260 test. The results of this study were as following; The result of KS F 2546 test for five kinds of aggregates shows that all of them are non-reactive. But that of ASTM C 1260 test shows that all of aggregates except Andesite-2 are over possible reactive because of environmental condition such as external alkali ion by 1N NaOH, high temperature and humidity. The result of variety of NaOH concentration on ASTM C 1260 using Siltstone indicates that length expansion rate increases highly as NaOH concentration increases. And, comparison results of KS F 2546 for Siltstone with that of 0.00N NaOH experiment indicates that length expansion rate increases as temperature and humidity increases.
 
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¾ËÄ®¸® - ½Ç¸®Ä« ¹ÝÀÀ¼º;¸ð¸£Å¸¸£ ºÀ ½ÃÇè¹æ¹ý;ȯ°æÁ¶°Ç;KS F 2546 ½ÃÇè¹æ¹ý;ASTM C 1260 ½ÃÇè¹æ¹ý;alkali-silica reaction;mortar-bar test;environmental condition;KS F 2546 test;ASTM C 1260 test;
 
Çѱ¹µµ·ÎÇÐȸ³í¹®Áý / v.13, no.3, 2011³â, pp.1-6
Çѱ¹µµ·ÎÇÐȸ
ISSN : 1738-7159
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO201131263125175)
¾ð¾î : Çѱ¹¾î
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