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Çѱ¹µµ·ÎÇÐȸ / v.7, no.2, 2005³â, pp.1-12
¾Æ½ºÆÈÆ® µ¡¾º¿ì±âÀÇ ¹Ý»ç±Õ¿­ Áö¿¬À» À§ÇÑ Áö¿À±×¸®µåÀÇ Àû¿ë¼º ¿¬±¸
( Performance of Geogrids for Retarding Reflection Crack of Asphalt Overlay Pavement )
±è±¤¿ì;µµ¿µ¼ö;±è¹øÃ¢;À̹®¼·; °­¿ø´ëÇб³ Áö¿ª±â¹Ý°øÇаú;°­¿ø´ëÇб³ ¼®À纹ÇսżÒÀ翬±¸¼¾ÅÍ;»ïÈ£°³¹ßÁÖ½Äȸ»ç;Çѱ¹°Ç¼³±â¼ú¿¬±¸¿ø Åä¸ñ¿¬±¸ºÎ µµ·Î½Ã¼³¿¬±¸±×·ì;
 
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º» ¿¬±¸´Â ³ëÈÄµÈ ½Ã¸àÆ® ÄÜÅ©¸®Æ® Æ÷Àå À§¿¡ µ¡¾º¿î ¾Æ½ºÆÈÆ® È¥ÇÕ¹°ÀÇ ¹Ý»ç±Õ¿­ Áö¿¬À» À§ÇÏ¿© ¹ÙÀδõ 2°¡Áö ÀϹݰú °³Áú, ¹Ù´Ú º¸°­Àç·Î ±×¸®µå 3Á¾·ù¿Í Fabric 2Á¾·ùÀÇ È¿°ú¸¦ Æò°¡Çϱâ À§ÇÏ¿© ¼öÇàÇÏ¿´´Ù. º¸°­Àç´Â °ø½Ãü Á¦Á¶½Ã ¹Ì¸® ½½·¡ºê ¸ôµå ¹Ù´Ú¿¡ ±ò°í °¡¿­ ¾Æ½ºÆÈÆ® È¥ÇÕ¹°À» ¸ôµå¿¡ ºÎÀº ÈÄ ´ÙÁüÀ» ÇÏ¿© ¾Æ½ºÆÈÆ® ½½·¡ºê °ø½Ãü¿Í ÀÏüȭ½ÃÄÑ ÄÜÅ©¸®Æ® ºí·Ï À§¿¡ µ¡¾º¿ì±â ÇüÅ·ΠÅÃÄÚÆÃÇÏ¿© ºÎÂøÇÏ¿´´Ù. º» ¿¬±¸¸¦ À§ÇÏ¿© È򮀱«(mode I) ¹× Àü´ÜÆÄ±«(mode II)¹Ý»ç±Õ¿­ ½ÃÇèÀ» ¼öÇàÇÏ¿´´Ù. ½ÃÇè°á°ú, ÀϺÎÀÇ ±×¸®µåÀÇ º¸°­ÀÌ È򮀱« ¹× Àü´ÜÆÄ±«¿¡ ÀÇÇÑ ¹Ý»ç±Õ¿­ÀÇ Áö¿¬¿¡ È¿°ú°¡ ÀÖ´Â °ÍÀ¸·Î ³ªÅ¸³µ´Ù. ƯÈ÷ LDPE °³Áú¾Æ½ºÆÈÆ®¿Í ÇÔ²² »ç¿ëÇÏ¸é ¹Ý»ç±Õ¿­ Áö¿¬¿¡ Å« È¿°ú°¡ ÀÖÀ½À» ¾Ë ¼ö ÀÖ¾ú´Ù.
This study was conducted to evaluate effect of geogrid and fabric, which are used underneath the overlaid asphalt pavement for retarding reflection cracking by simulated laboratory test. In this study, an interlayer at the interface between old concrete pavement surface and overlaid asphalt mixture, and polymer-modifier were used as an effort of retarding reflection crack initiation and for strengthening mixture. Five products were used in preparation of asphalt concrete beam specimen which was tack coated on top of jointed concrete block. Simulated Mode I and II fracture test were conducted under wheel loading and results were compared among those products. From the test results, several material and reinforcement combinations were observed to have a significant retardation effect against reflection cracking. The most effectively strengthened pavement against reflection cracking was found to be the LDPE-modifier asphalt mixture with a grid reinforcement at the bottom.
 
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¹Ý»ç±Õ¿­;º¸°­Àç;È򮀱« ¹× Àü´ÜÆÄ±« ¹Ý»ç±Õ¿­½ÃÇè;LDPE °³Áú¾Æ½ºÆÈÆ®;geogrid;interlayer;polymer-modifier;overlaid asphalt pavement;reflection crack;Simulated Mode I and II fracture test;LDPF-modifier asphalt;
 
Çѱ¹µµ·ÎÇÐȸ³í¹®Áý / v.7, no.2, 2005³â, pp.1-12
Çѱ¹µµ·ÎÇÐȸ
ISSN : 1738-7159
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO200515637507020)
¾ð¾î : Çѱ¹¾î
³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø
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ȸ»ç¼Ò°³ ±¤°í¾È³» ÀÌ¿ë¾à°ü °³ÀÎÁ¤º¸Ãë±Þ¹æÄ§ Ã¥ÀÓÀÇ ÇѰè¿Í ¹ýÀû°íÁö À̸ÞÀÏÁÖ¼Ò ¹«´Ü¼öÁý °ÅºÎ °í°´¼¾ÅÍ
   

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