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Çѱ¹µµ·ÎÇÐȸ / v.7, no.4, 2005³â, pp.9-20
¾Æ½ºÆÈÆ® µ¡¾º¿ì±â ÇϺÎÀÇ Geogrid ºÎÂø¹æ¹ý¿¡ µû¸¥ ¹Ý»ç±Õ¿­ Áö¿¬Æ¯¼º ºñ±³
( Comparison of Geogrid Bonding Methods under Asphalt Overlay Layer for Reflection Cracking Retardation )
µµ¿µ¼ö;±è¹øÃ¢;°íÅ¿µ;±è±¤¿ì; °­¿ø´ëÇб³ ¼®À纹ÇսżÒÀ翬±¸¼¾ÅÍ;ÁøÈ­±â¼ú°ø»ç µµ·ÎºÎ;°­¿ø´ëÇб³ ´ëÇпø Áö¿ª±â¹Ý°øÇаú;°­¿ø´ëÇб³ Áö¿ª±â¹Ý°øÇаú;
 
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º» ¿¬±¸´Â ¾Æ½ºÆÈÆ® µ¡¾º¿ì±â Æ÷Àå¿¡ ³ªÅ¸³ª´Â ¹Ý»ç±Õ¿­À» Á¦¾îÇϱâ À§ÇÏ¿© ³ëÈÄµÈ ½Ã¸àÆ® ÄÜÅ©¸®Æ® Æ÷Àå°ú ¾Æ½ºÆÈÆ® µ¡¾º¿ì±â Æ÷Àå °æ°è¸é¿¡ º¸°­ÀçÀÇ È¿°úÀûÀÎ ºÎÂø ¹æ¹ýÀ» ã±â À§ÇÏ¿© ¼öÇàÇÏ¿´´Ù. À̸¦ À§ÇÑ ºÎÂøÀç·Î´Â RSC-4 À¯È­¾Æ½ºÆÈÆ®, ÄÄÆÄ¿îµå, ºÒÆ÷È­ Æú¸®¿¡½ºÅÍ ¼öÁö (UPR) µî 3Á¾·ù¸¦ »ç¿ëÇÏ¿´´Ù. ¶ÇÇÑ ¾Æ½ºÆÈÆ® È¥ÇÕ¹°Àº 3Á¾·ùÀÇ ¹ÐÀÔµµ È¥ÇÕ¹°(AC 60-80, RLDPE 8%, PG 76-22)À» »ç¿ëÇÏ¿´´Ù. º¸°­ Àç·á·Î¼­ À¯¸®¼¶À¯ ±×¸®µå ÇϺο¡ Á÷Æ÷°¡ ºÎÂøµÈ °ÍÀ» »ç¿ëÇÏ¿´´Ù. º¹ÇÕ¸ðµå ÆÄ±«(mode II)ÀÇ ¸ð»ç¸¦ À§ÇÑ ÃËÁø½ÃÇèÀº ÈÙÆ®·¢Å· Àåºñ¸¦ ÀÌ¿ëÇÏ¿© ¼öÇàÇÏ¿´´Ù. ¹Ý»ç±Õ¿­ÀÇ ÁøÀüÀº ÇǷμö¸íÀ¸·Î¼­ ÇÏÁß »çÀÌŬ ¼ö¿¡ µû¶ó ÃøÁ¤ÇÏ¿´°í, °ø½ÃüÀÇ º¯À§´Â °¢°¢ ½ÃÇè °ø½Ãü¿¡ ´ëÇÏ¿© demec °ÔÀÌÁö¸¦ ÀÌ¿ëÇÏ¿© ÃøÁ¤ÇÏ¿´´Ù. º» ¿¬±¸ °á°ú, UPR ºÎÂøÀÌ °¡Àå È¿°úÀûÀ̾úÀ¸¸ç ´ÙÀ½Àº RSC-4ÀÇ ¼øÀ̾ú´Ù. ±×·¯³ª ÇöÀå Àû¿ë¼ºÀ» °í·ÁÇÒ ¶§ , RSC-4 À¯Á¦°¡ º¸°­ Àç·áÀÇ ºÎÂøÀ» À§ÇØ ÀûÀýÇÑ ¼±ÅÃÀ¸·Î ÆÇ´ÜµÈ´Ù.
This study was carried out to select most efficient bonding methods of geogrid at the interface of old concrete pavement before placing asphalt overlay layer for reflection cracking retardation. Three bonding methods, a RSC-4 emulsified asphalt, a compound and an unsaturated polyester resin (UPR) were compared in this study. Three types of asphalt mixture (AC 60-80, RLDPE 8%, PG 76-22) and a dense-graded aggregate were used for overlay asphalt pavement. A reinforcing material which consists of a woven fabric underneath a glass fiber grid was used. An expedite test method which is for simulating mixed mode (mode I and II) fracture test was performed using a wheel tracker in laboratory. Cracking development by load repetition was measured as fatigue life (number of load cycle) and expansion of specimen body were measured for each test specimen. The results showed that UPR was the best and RSC-4 the next. But considering field applicability, RSC-4 was considered as an appropriate choice for bonding reinforcing material.
 
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Çѱ¹µµ·ÎÇÐȸ³í¹®Áý / v.7, no.4, 2005³â, pp.9-20
Çѱ¹µµ·ÎÇÐȸ
ISSN : 1738-7159
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO200515637509288)
¾ð¾î : Çѱ¹¾î
³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø
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