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Çѱ¹µµ·ÎÇÐȸ / v.11, no.3, 2009³â, pp.97-109
Æ÷Àå°¡¼Ó½ÃÇèÀ» ÀÌ¿ëÇÑ º¸¼öÇü ¹è¼ö¼º Æ÷ÀåÀÇ ¿ÂµµÀú°¨ È¿°ú ¹× ¼Ò¼ºº¯Çü ÀúÇׯ¯¼º ¿¬±¸
( Evaluation of the Temperature Drop Effect and the Rutting Resistance of Moisture Retaining-Porous Asphalt Pavement Using Accelerated Pavement Testing )
°ûº´¼®;¼­¿µÂù;¼Ûö¿µ;±èÁÖ¿ø; Çѱ¹µµ·Î°ø»ç µµ·Î±³Å뿬±¸¿ø Àå¼ö¸íģȯ°æÆ÷ÀåÆÀ;ÇѾç´ëÇб³ ±³Åë°øÇаú;Èľϻê¾÷(ÁÖ) ½Å±â¼ú»ç¾÷º»ºÎ;¼º¿ø°Ç¼³±â¼ú»ç»ç¹«¼Ò;
 
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³ôÀº Æ÷Àå¿Âµµ´Â ¾Æ½ºÆÈÆ®Æ÷Àå ¼Ò¼ºº¯ÇüÀÇ ÁÖ¿äÀÎÀ̳ª ¼Ò¼ºº¯ÇüÀ» ÁÙÀ̱â À§ÇÑ ¹æ¾ÈÀ¸·Î¼­ Æ÷Àå¿Âµµ¸¦ ÁÙÀÌ´Â Ãø¸é¿¡¼­´Â ¾ÆÁ÷ ¸¹Àº ¿¬±¸°¡ ÀÌ·ç¾îÁöÁö ¾ÊÀº ½ÇÁ¤ÀÌ´Ù. º» ¿¬±¸¿¡¼­´Â ¼Ò¼ºº¯Çü°áÇÔÀ» ÁÙÀ̱â À§ÇÑ ÇϳªÀÇ ´ë¾ÈÀ¸·Î, ¿ÂµµÀú°¨ È¿°ú°¡ ÀÖ´Â °ÍÀ¸·Î ¾Ë·ÁÁ® ÀÖ´Â º¸¼ö¼º Æ÷ÀåÀ» ¹è¼ö¼º Æ÷ÀåÀÇ ÇϺÎÃþ¿¡ ¼³Ä¡ÇÑ Æ÷ÀåÀÇ °ø¿ëƯ¼ºÀ» ¿¬±¸ÇÏ¿´´Ù. º» ¿¬±¸ÀÇ ¸ñÀûÀº º¸¼öÇü ¹è¼ö¼º Æ÷ÀåÀÇ ¿ÂµµÀú°¨È¿°ú¸¦ Á¤·®È­Çϰí, Æ÷Àå°¡¼Ó½ÃÇè(Accelerated Pavement Testing)À» ÀÌ¿ëÇÏ¿© ¿Âµµ Àú°¨¿¡ µû¸¥ ¼Ò¼ºº¯Çü °¨¼ÒÈ¿°ú¸¦ È®ÀÎÇϰí, Á¤·®È­Çϴµ¥ ÀÖ´Ù. ¶ÇÇÑ Ãß°¡ÀûÀ¸·Î º¸¼ö¼º Æ÷ÀåÀÇ »ó´ë°­µµ°è¼ö¸¦ ºÐ¼®Çϰí, ÀÏ¹Ý Æ÷Àå°ú ºñ±³ÇÏ¿© ¼³°è¹ý Àû¿ë½Ã Æ÷ÀåµÎ²²¸¦ ÁÙÀÏ ¼ö ÀÖ´ÂÁö ¿©ºÎ¸¦ ¾Ë¾Æº¸°íÀÚ ÇÏ¿´´Ù. º» ¿¬±¸¸¦ À§ÇØ º¸¼öÇü ¹è¼ö¼ºÆ÷Àå 2°³ ´Ü¸é ¹× ÀÏ¹Ý ¹è¼ö¼º Æ÷Àå 1°³ ´Ü¸é µî ÃÑ 3°³ ½ÃÇ豸°£ÀÌ ½Ã°øµÇ¾ú´Ù. È÷ÆÃ ¹× »ì¼ö¸¦ ÀÏÁ¤ÁÖ±â·Î ½Ç½ÃÇÏ¿´À¸¸ç ÇÏÁßÁ¶°ÇÀº À±ÇÏÁß 8.2ton, ŸÀÌ¾î °ø±â¾Ð $7.03kgf/cm^2$ ŸÀ̾î Á¢Áö¸éÀû $610cm^2$À̾ú´Ù. ÀÌ ¿¬±¸¿¡¼­ Æ÷Àåü ¿ÂµµÀú°¨È¿°ú´Â Áß°£ÃþÀÇ °æ¿ì $6.6{sim}7.9^{circ}C$(Æò±Õ$7.4^{circ}C$), Ç¥ÃþÀÇ °æ¿ì $7.9{sim}9.8^{circ}C$(Æò±Õ $8.8^{circ}C$)¿´À¸¸ç, À̸¦ ÅëÇØ Æ÷ÀåÇ¥¸éÀÇ ¼Ò¼ºº¯Çü ¹ß»ýÀ» 26% °¨¼Ò½Ãų ¼ö ÀÖ¾ú´Ù. ¶ÇÇÑ Åº¼º°è¼ö·ÎºÎÅÍ ÃßÁ¤µÈ º¸¼ö¼º Æ÷ÀåÀÇ »ó´ë°­µµ°è¼ö´Â 0.173À¸·Î ÀÏ¹Ý ¹ÐÀÔµµ Æ÷ÀåÀÇ 1.2¹è Á¤µµ¿´À¸¸ç, ÀϹݹè¼ö¼º Æ÷Àå ±¸°£¿¡¼­´Â Ç¥Ãþ, Áß°£Ãþ, ±âÃþ ¸ðµÎ ¼Ò¼ºº¯ÇüÀÌ ¹ß»ýÇѵ¥ ¹ÝÇØ º¸¼öÇü ¹è¼ö¼º Æ÷Àå ±¸°£¿¡¼­´Â Ç¥Ãþ¿¡¼­ ´ëºÎºÐÀÇ ¼Ò¼ºº¯ÇüÀÌ ¹ß»ýµÈ °ÍÀ¸·Î ³ªÅ¸³µ´Ù.
One of the main causes of asphalt rutting is high temperature of the pavement. Nevertheless, there has been few research on lowering the pavement temperature for reducing rutting. This study investigated the performance characteristics of moisture-retaining porous asphalt pavement, which is known to have a temperature reducing effect. The purpose of this study is to quantify the temperature reducing effect of moisture-retaining porous asphalt pavement and its effect of reducing rutting through Accelerated Pavement Testing(APT). Additionally, the possibility of reducing the thickness of the pavement in comparison to general dense grade pavement by analyzing structural layer coefficient of moisture retaining pavement. A total of three test sections consisting of two moisture-retaining porous asphalt pavement sections and one general dense-grade porous asphalt pavement section were constructed for this study. Heating and spraying of water were carried out in a regular cycle. The loading condition was 8.2 ton of wheel load, the tire pressure of $7.03kgf/cm^2$, and the contact area of $610cm^2$. The result of this experiment revealed that the temperature reducing effect of the pavement was about $6.6{sim}7.9^{circ}C$(average of $7.4^{circ}C$) for the middle layer and $7.9{sim}9.8^{circ}C$(average of $8.8^{circ}C$) for surface course, resulting in a rutting reduction of 26% at the pavement surface. Additionally, the structural layer coefficient of moisture retaining pavement measured from a laboratory test was 0.173, about 1.2 times that of general dense grade pavement. The general dense-grade porous asphalt pavement test section exhibited rutting at all layers of surface course, middle layer, and base layer, while the test sections of moisture-retaining porous asphalt pavement manifested rutting mostly at surface course only.
 
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º¸¼öÇü¹è¼ö¼ºÆ÷Àå;Æ÷Àå°¡¼Ó½ÃÇè;¼Ò¼ºº¯Çü;¿ÂµµÀú°¨È¿°ú;°ø¿ë¼º;»ó´ë°­µµ°è¼ö;moisture-retaining porous asphalt pavement;accelerated pavement testing;rutting;temperature reducing effect;pavement performance;the structural layer coefficient;
 
Çѱ¹µµ·ÎÇÐȸ³í¹®Áý / v.11, no.3, 2009³â, pp.97-109
Çѱ¹µµ·ÎÇÐȸ
ISSN : 1738-7159
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO200929535567893)
¾ð¾î : Çѱ¹¾î
³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø
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