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Çѱ¹µµ·ÎÇÐȸ / v.9, no.2, 2007³â, pp.51-62
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°í³»±¸¼º ±³¸éÆ÷Àå ¾Æ½ºÆÈÆ® È¥ÇÕ¹°ÀÇ °ø¿ë¼º Æò°¡¿¡ °üÇÑ ¿¬±¸
( Performance Evaluation of the High Durability Asphalt Mixture for Bridge Deck Pavements ) |
| ¹ÚÈñ¹®;ÃÖÁö¿µ;ÀÌÇöÁ¾;ȲÀÇÀ±; Çѱ¹°Ç¼³±â¼ú¿¬±¸¿ø µµ·Î¿¬±¸ºÎ;Çѱ¹°Ç¼³±â¼ú¿¬±¸¿ø µµ·Î¿¬±¸ºÎ;¼¼Á¾´ëÇб³ Åä¸ñ°øÇаú;SK¢ß±â¼ú¿ø;
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| ÃÖ±Ù ±¹³»¿¡¼´Â ±³¸éÆ÷ÀåÀÇ ÆÄ¼Õ¿¡ µû¸¥ ±³·® ¹Ù´ÚÆÇÀÇ ¿È ¹× ¿îÀüÀÚ ¾ÈÁ¤¼ºÀÇ ¹®Á¦°¡ ´ëµÎµÇ°í ÀÖ´Ù. ±âÁ¸ ¾Æ½ºÆÈÆ® Àç·á´Â ±³·®¿¡¼ ¹ß»ýÇÏ´Â ¿¾ÇÇÑ È¯°æ¿¡ Àû¿ëÇϱ⿡´Â ÇѰ谡 ÀÖ¾î ±³·® ¹Ù´ÚÆÇÀ» º¸È£ÇÏ°í »ó´ëÀûÀ¸·Î Å« óÁü¿¡ ´ëÇÏ¿© Àå±â°£ °ßµô ¼ö ÀÖ´Â, ÇÇ·ÎÀúÇ×¼ºÀÌ ¿ì¼öÇÑ °í³»±¸¼º ±³¸éÆ÷Àå ¾Æ½ºÆÈÆ® È¥ÇÕ¹°ÀÇ °³¹ßÀÌ ÇÊ¿äÇÏ°Ô µÇ¾ú´Ù. ÀÌ¿¡ SBS ÷°¡¹°°ú ÷°¡Á¦¸¦ »ç¿ëÇÏ¿© »ý»ê¼º ¹× ÀÛ¾÷¼ºÀÌ ¿ì¼öÇϰí ÇǷαտÀúÇ×¼ºÀÌ ¶Ù¾î³ ±³¸éÆ÷Àå¿ë ¾Æ½ºÆÈÆ® ¹ÙÀδõ¸¦ °³¹ßÇÏ¿´´Ù. »õ·Î¿î ¾Æ½ºÆÈÆ® ¹ÙÀδõ´Â ȸÀüÁ¡µµ½ÃÇè (RV test), ÀÎÈÁ¡½ÃÇè (Flash point test), µ¿ÀûÀü´Ü½ÃÇè(DSR test), Àú¿Âºö½ÃÇè(BBR test) µîÀ» ÅëÇÏ¿© PG 70-34ÀÇ °ø¿ëµî±ÞÀ¸·Î È®ÀεǾú´Ù. º» ¿¬±¸¿¡¼ °³¹ßµÈ ¾Æ½ºÆÈÆ® ¹ÙÀδõ¸¦ »ç¿ëÇÑ È¥ÇÕ¹°ÀÇ °ø¿ë¼ºÀ» Æò°¡Çϱâ À§ÇÏ¿©, ÇǷνÃÇè, ÈÙÆ®·¡Å·½ÃÇè, ¼öºÐ¼Õ»ó½ÃÇè µîÀ» ½Ç½ÃÇÏ¿´À¸¸ç ½Ç¹°Å©±âÀÇ À±ÇÏÁß½ÃÇèÀ» ÅëÇÏ¿© ¼Ò¼ºº¯Çü ÀúÇ×¼º ¹× ÇǷαտ ÀúÇ×¼º¿¡ ´ëÇÏ¿© Æò°¡ÇÏ¿´´Ù. ½Ç³»°ø¿ë¼º ½ÃÇèÀ» ÅëÇÏ¿© ±³¸éÆ÷Àå¿ë ¾Æ½ºÆÈÆ® È¥ÇÕ¹°ÀÌ SBS °³Áú È¥ÇÕ¹°¿¡ ºñÇÏ¿© 3¹è ÀÌ»óÀÇ ÇǷμö¸íÀ» °¡Á³´Ù. ¶ÇÇÑ, À±ÇÏÁß½ÃÇè¿¡¼µµ ¼Ò¼ºÈ帧ÀÌ ¹ß»ýÇÏÁö ¾Ê¾Ò°í, ÇǷαտÀº 250,000ȸ ÀÌ»óÀ» ÀçÇÏÇÏ¿©µµ PG 64-22 È¥ÇÕ¹°ÀÇ 38% ¹Û¿¡ ³ªÅ¸³ªÁö ¾Ê¾Ò´Ù. |
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| Recently, the pavement distresses in the bridge deck have seriously affected the durability of bridge deck and driver's safety. The existing asphalt materials have the limitations in reducing the pavement distresses of brides deck. To protect the bridge deck and withstand the high deflection, it is necessary to develop the asphalt materials with good fatigue resistance for bridge deck pavement. The asphalt binder combined with SBS and two other admixtures has been developed for improving the resistance to fatigue cracking, productivity, and workability for bridge deck pavement. Based on the various binder test results, the developed binder is found to be PG 70-34 indicating very higher resistance against fatigue cracking. Fatigue testing, wheel tracking testing, and moisture susceptibility testing have been conducted to evaluate the performance of asphalt mixtures developed in this study. Laboratory test results show that the developed asphalt material has three times higher fatigue lives than the typical modified asphalt mixture. Full scale accelerated testing was also performed on the typical asphalt mixture and newly developed asphalt mixture to evaluate the full scale performance of asphalt mixtures. Test results indicate that the length of cracking on the new materials is only 38% of the typical material at the 250,000 load repetitions. |
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| FRP ±³·®»óÆÇ;SBS °³Áú¾Æ½ºÆÈÆ®;ÇǷαտ;½Ç¹°Æ÷Àå °¡¼Ó½ÃÇè;FRP bridge deck;SBS modified asphalt;fatigue crack;full scale accelerated testing; |
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Çѱ¹µµ·ÎÇÐȸ³í¹®Áý / v.9, no.2, 2007³â, pp.51-62
Çѱ¹µµ·ÎÇÐȸ
ISSN : 1738-7159
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO200722941481983)
¾ð¾î : Çѱ¹¾î |
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| ³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø |
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