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Çѱ¹µµ·ÎÇÐȸ / v.7, no.4, 2005³â, pp.49-56
°ø¿ë¼º¿¡ ±Ù°ÅÇÑ ÆÄ±«±âÁØÀ» ÀÌ¿ëÇÑ °³Áú ¾Æ½ºÆÈÆ® Æ÷ÀåÀÇ ºñ¿ë È¿°ú ºÐ¼®
( Cost Analysis of Modified Asphalts using a Performance Based Fracture Criterion )
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ÀϹÝÀûÀ¸·Î ¾Æ½ºÆÈÆ® Æ÷Àå¿¡¼­ °³ÁúÀçÀÇ È¿°ú´Â °³Áú ¾Æ½ºÆÈÆ® È¥ÇÕ¹°°ú ÀÏ¹Ý ¾Æ½ºÆÈÆ® È¥ÇÕ¹° »çÀÌÀÇ Àç·á Ư¼º (ÀÎÀå°­µµ, ½ºÆ¼ÇÁ´Ï½º µî)À» ´Ü¼øÈ÷ ºñ±³ÇÔÀ¸·Î½á Æò°¡µÈ´Ù. ±×·¯³ª °³Áú ¾Æ½ºÆÈÆ®ÀÇ È¿°ú¸¦ Æò°¡Çϴµ¥ À־ ÀÌ·¯ÇÑ ´Ü¼ø ºñ±³´Â ¾Æ½ºÆÈÆ® È¥ÇÕ¹°ÀÇ Æ¯¼ºÀ» Á¦´ë·Î ¹Ý¿µÇÏÁö ¸øÇÏ´Â °á°ú¸¦ ÃÊ·¡ÇÒ ¼ö ÀÖ´Ù. µû¶ó¼­ °³Áú ¾Æ½ºÆÈÆ® È¥ÇÕ¹°ÀÇ Æ¯¼ºÀ» È¿°úÀûÀ¸·Î Æò°¡Çϱâ À§Çؼ­´Â ¾Æ½ºÆÈÆ® È¥ÇÕ¹°ÀÇ ÁÖ¿äÇÑ Æ¯¼ºµéÀ» Á¾ÇÕÀûÀ¸·Î ¹Ý¿µÇÒ ¼ö ÀÖ´Â ÇÕ¸®ÀûÀÎ ¸Å°³º¯¼ö°¡ ¿ä±¸µÈ´Ù. º» ¿¬±¸¿¡¼­´Â ÀÌ·¯ÇÑ ¸Å°³º¯¼ö·Î¼­ ÃÖ±Ù¿¡ »õ·Ó°Ô °³¹ßµÈ °ø¿ë¼º ¿¡ ±Ù°ÅÇÑ ÆÄ±« ±âÁØ (Energy Ratio)À» ÀÌ¿ëÇÏ¿© SBS °³Áú ¾Æ½ºÆÈÆ®¿Í Crumb Rubber °³Áú ¾Æ½ºÆÈÆ®ÀÇ ÆÄ±« ÀúÇ×¼ºÀÇ È¿°ú¸¦ Á¤·®È­ÇÏ°í ±×¿¡ µû¸¥ ºñ¿ë È¿°ú¸¦ ºñ±³ ºÐ¼®ÇÏ¿´´Ù. ºÐ¼® °á°ú, SBS °³Áú ¾Æ½ºÆÈÆ® È¥ÇÕ¹°ÀÇ Energy Ratio°¡ Crumb Rubber °³Áú ¾Æ½ºÆÈÆ®³ª ÀÏ¹Ý ¾Æ½ºÆÈÆ® È¥ÇÕ¹°ÀÇ Energy Ratio¿¡ ºñÇØ µÎ ¹è ÀÌ»ó ³ôÀ½À» ¾Ë ¼ö ÀÖ¾úÀ¸¸ç, ±×¿¡ µû¸¥ SBS °³ÁúÀçÀÇ ºñ¿ë Àý°¨È¿°ú´Â ÃÖ´ë 24% Á¤µµ·Î ³ªÅ¸³µ´Ù. º» ¿¬±¸ °á°ú, Energy Ratio´Â °³Áú ¾Æ½ºÆÈÆ®ÀÇ È¿°ú¸¦ Æò°¡Çϴµ¥ À¯¿ëÇÒ »Ó¸¸ ¾Æ´Ï¶ó, °ø¿ë¼º¿¡ ±Ù°ÅÇÑ ¾Æ½ºÆÈÆ® Æ÷ÀåÀÇ µÎ²² ¼³°èÀÇ ÆÄ±« ±âÁØÀ¸·Îµµ ÀÌ¿ë °¡´ÉÇÔÀ» È®ÀÎÇÒ ¼ö ÀÖ¾ú´Ù.
The effect of modified asphalts is evaluated by simple comparison of a single parameter (i.e., tensile strength, stiffness, etc.) between modified asphalt mixture and unmodified mixture. The use of a single parameter to evaluate the effect of modified asphalt must be questioned. Rather, a single unified framework that accounts for changes in key mixture properties is needed to effectively evaluate the modified asphalt mixtures. This study used a new performance-based fracture parameter as a single unified framework, the Energy Ratio (ER), for quantifying the effect of modified asphalts oil the fracture resistance of mixtures. The Energy Ratio was then used as a performance criterion for calculating the construction cost of two modified asphalt pavements (SBS and Crumb Rubber) and unmodified asphalt pavement. The results showed that the Energy Ratio of SBS modified asphalt was higher than those of crumb rubber and unmodified asphalt. Cost analyses indicated that the construction cost of the AC layer would be reduced by up to 24% by SBS modification. Based on the results, the Energy Ratio is capable of evaluating the effect of modified mixtures, and may form the basis of a promising fracture criterion for performance-based thickness design in asphalt pavements.
 
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¾Æ½ºÆÈÆ® È¥ÇÕ¹°;°³Áú ¾Æ½ºÆÈÆ®;°ø¿ë¼º ±Ù°Å ÆÄ±« ±âÁØ;ºñ¿ë È¿°ú ºÐ¼®;asphalt mixture;modified asphalt;performance based fracture criterion;energy ratio;cost analysis;
 
Çѱ¹µµ·ÎÇÐȸ³í¹®Áý / v.7, no.4, 2005³â, pp.49-56
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ISSN : 1738-7159
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO200515637509391)
¾ð¾î : ¿µ¾î
³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø
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