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Çѱ¹µµ·ÎÇÐȸ / v.8, no.1, 2006³â, pp.15-23
Æ÷À强´É°ü·Ã ¿ªÇÐÀû Ư¼ºÀÌ °í·ÁµÈ ¾Æ½ºÆÈÆ® È¥ÇÕ¹°ÀÇ ¹èÇÕ¼³°è¹ý °³¹ß ¹æ¾È
( Methodology for Developing HMA Mix Design Taking into Account Performance-Related Mechanistic Properties )
±èºÎÀÏ;À̹®¼·;±è±¤¿ì; Çѱ¹°Ç¼³±â¼ú¿¬±¸¿ø µµ·Î¿¬±¸ºÎ;Çѱ¹°Ç¼³±â¼ú¿¬±¸¿ø µµ·Î¿¬±¸ºÎ;°­¿ø´ëÇб³ Áö¿ª±â¹Ý°øÇаú;
 
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ÇöÀçÀÇ ¸¶¼£ ¹èÇÕ¼³°è´Â °ø±Ø·ü, VFA. VMA¿Í ÇÔ²² °¡¿­ ¾Æ½ºÆÈÆ® È¥ÇÕ¹°ÀÇ ÇöÀå °ø¿ë¼º°ú °ü·ÃÀÌ ÀûÀº ¾ÈÁ¤µµ¿Í È帧°ªÀ» Æ÷ÇÔÇϰí ÀÖ´Ù. °Ô´Ù°¡, ¾ÈÁ¤µµ¿Í È帧°ªÀº °ÅÀÇ ´ëºÎºÐ ±âÁذª¿¡ ¸¸Á·Çϸç. ÃÖÀû ¾Æ½ºÆÈÆ® ÇÔ·®(OAC)Àº °ø±Ø·ü, VFA, VMA¿Í °°Àº ¿ëÀûƯ¼º¿¡ ÀÇÇØ °áÁ¤µÇ°í ÀÖ´Ù. ±×·¯¹Ç·Î ¸¹Àº ¿¬±¸ÀÚµéÀº ÇöÀå °ø¿ë¼º°ú °ü°è¸¦ °¡Áö´Â È¥ÇÕ¹°À» ¸¸µé±â À§ÇÏ¿© ¾ÈÁ¤µµ¿Í È帧°ªÀ» ´ë½ÅÇÒ ¼ö ÀÖ´Â ¿ªÇÐÀû Ư¼º¿¡ °ü½ÉÀ» °¡Áö°í ÀÖ´Ù. º» ¿¬±¸¿¡¼­´Â ¸¶¼£ ¹èÇÕ¼³°è¹æ¹ýÀÇ ¾ÈÁ¤µµ¿Í È帧°ªÀ» ´ë½ÅÇÏ¿© ¿ªÇÐÀû Ư¼º°ú °ü·ÃÀÖ´Â º¯Çü°­µµ$(S_D)$¿Í ÆÄ±«¿¡³ÊÁö(FE)¸¦ µµÀÔÇÏ´Â ¹èÇÕ¼³°è¸¦ Á¦¾ÈÇÒ °ÍÀÌ´Ù. Kim test·ÎºÎÅÍ ¼Ò¼ºº¯Çü ÀúÇ×¼º°ú »ó°ü¼ºÀÌ ³ôÀº º¯Çü°­µµ$(S_D)$¿Í, °£Á¢ÀÎÀå½ÃÇèÀ¸·ÎºÎÅÍ ÇǷαտ­À» ¸ð»çÇÏ´Â ÆÄ±«¿¡³ÊÁö (FE)¸¦ µµÀÔÇÏ¿´´Ù. ÇöÀçÀÇ ¹èÇÕ¼³°è¹æ¹ý°ú Á¦¾ÈÇÑ ¹èÇÕ¼³°è ¹æ¹ýÀ» ºñ±³Çϱâ À§ÇÏ¿© 4°¡Áö ¾Æ½ºÆÈÆ® ÈçÇÕ¹°À» »ç¿ëÇÏ¿´´Ù. Á¦¾ÈÇÑ ¹èÇÕ¼³°è°¡ ÇöÀçÀÇ ¹èÇÕ¼³°è¹æ¹ý¿¡ ºñÇØ OAC°áÁ¤¿¡ ¿ªÇÐÀû Ư¼ºÀÌ ¹Ý¿µµÇ´Â °á°ú¸¦ º¼ ¼ö ÀÖ¾ú´Ù.
Criteria of the current asphalt mix design, Marshall method, includes the stability and flow which are not related with field performance of HMA mixture, together with the air void, Void filled with asphalt (VFA) and/or Void of mineral Aggregate(VMA). In addition, the limits of stability and flow are satisfied in most cases, the Optimum asphalt content (OAC) is determined based on volumetric properties, such as the air void and/or VFA and/of VMA. Therefore, many researchers have sought mechanistic properties which can replace the stability and flow, making the designed mixture having potential for better field performance. This study initiated to develope a mix design by introducing two performance-related mechanistic properties, the deformation strengh and fracture energy, in place of the stability and flow of the Marshall method. The deformation strength $(S_D)$ from the Kim Test has a high correlation with rutting property and the fracture energy(FE) from the indirect tensile test represents the fatigue cracking property of asphalt mixture. Four types of asphalt mixture were prepared for examining possibility of using the suggested mix design method in comparison with current methods. The results showed that mechanical properties were reflected in determination of OAC with this suggested mix design, unlike the existing Marshall method.
 
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¾Æ½ºÆÈÆ® È¥ÇÕ¹°;¹èÇÕ¼³°è;º¯Çü°­µµ$(S_D)$;ÆÄ±«¿¡³ÊÁö(FE);asphalt mixture;mix design;deformation strength;fracture energy;
 
Çѱ¹µµ·ÎÇÐȸ³í¹®Áý / v.8, no.1, 2006³â, pp.15-23
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ISSN : 1738-7159
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO200617033452422)
¾ð¾î : Çѱ¹¾î
³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø
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