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Çѱ¹µµ·ÎÇÐȸ / v.10, no.4, 2008³â, pp.281-292
LTPP-SPS : ¼¶À¯º¸°­ ¾Æ½ºÆÈÆ® Æ÷ÀåÀÇ ±¸Á¶Àû ¼º´É Æò°¡
( LTPP-SPS : Evaluation of Structural Capacity on Asphalt Pavement Reinforced with Glass Fiber )
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±¹³» LTPP(Long Term Pavement Performance) ¿¬±¸¿¡¼­ ¼¶À¯º¸°­ ¾Æ½ºÆÈÆ® Æ÷ÀåÀÇ ¼º´ÉÀ» Æò°¡Çϱâ À§ÇØ, ±¹µµ 1È£¼± ±¸°£¿¡ ÀÏ¹Ý ¾Æ½ºÆÈÆ® Æ÷Àå°ú ¼¶À¯º¸°­ ¾Æ½ºÆÈÆ® Æ÷ÀåÀ» °¢°¢ ½Ã°øÇÏ¿´À¸¸ç, °¢°¢ÀÇ ´Ü¸é¿¡ Æ÷Àåü ±¸Á¶Àû °Åµ¿À» ÃøÁ¤ÇÒ ¼ö ÀÖ´Â °èÃø¼¾¼­¸¦ ¸Å¼³ÇÏ¿´´Ù. º» ¿¬±¸¿¡¼­´Â ±¹³» LTPP±¸°£¿¡¼­ ¼öÇàµÈ Â÷·®ÀçÇϽÃÇè°ú FWD½ÃÇèÀÇ °á°ú¸¦ ¹ÙÅÁÀ¸·Î ¼¶À¯º¸°­ ¾Æ½ºÆÈÆ® Æ÷ÀåÀÇ ±¸Á¶Àû ¼º´ÉÀ» Æò°¡ÇÏ¿´´Ù. º» ¿¬±¸°á°ú, Â÷·®ÀçÇϽÃÇè¿¡¼­ ¼¶À¯º¸°­À縦 »ç¿ëÇÒ °æ¿ì Ç¥ÃþÇϴܺÎÀÇ º¯Çü·üÀÌ Å©°Ô Àú°¨µÇ´Â °ÍÀ» È®ÀÎÇÏ¿´´Ù. ¶ÇÇÑ ÀÏ¹Ý ¾Æ½ºÆÈÆ® Æ÷À庸´Ù ÀÀ·ÂÁ߸³ÃàÀÌ »ó½ÂÇÏ¿© ÀÏ¹Ý ¾Æ½ºÆÈÆ®Æ÷ÀåÀº Áß°£Ãþ ÇÏ´Ü¿¡¼­ ¾ÐÃຯÇüÀÌ ¹ß»ýÇÏ´Â ¹Ý¸é¿¡, ¼¶À¯º¸°­ ¾Æ½ºÆÈÆ®Æ÷ÀåÀº Áß°£Ãþ ÇÏ´Ü¿¡¼­ ÀÎÀ庯ÇüÀÌ ¹ß»ýÇÏ¿´´Ù. ¹Ý¸é ±âÃþ Çϴܺο¡¼­ÀÇ ÀÎÀ庯Çü·üÀº µÎ Æ÷ÀåÇü½Ä ¸ðµÎ Å« Â÷À̸¦ ³ªÅ¸³»Áö ¾Ê¾Ò´Ù. FWD ½ÃÇè¿¡¼­µµ ¼¶À¯º¸°­À縦 »ç¿ëÇÒ °æ¿ì ¾à 24% Á¤µµ Ç¥¸é óÁü ·®ÀÌ Àú°¨µÇ´Â °ÍÀ» È®ÀÎÇÏ¿´´Ù. ÀÌ¿Í °°Àº °á°ú¸¦ Á¾ÇÕÇÏ¿© º¼ ¶§, ¼¶À¯º¸°­ ¾Æ½ºÆÈÆ® Æ÷ÀåÀÌ ¼Ò¼ºº¯Çü¿¡ ´ëÇÑ ÀúÇ×¼ºÀ» ÁõÁø½Ãų ¼ö ÀÖ´Ù°í ÆÇ´ÜµÇ¸ç, ÇâÈÄ¿¡ Æ÷Àå»óÅÂÁ¶»ç¸¦ ÅëÇØ Àå±âÆ÷Àå°ø¿ë¼º¿¡ ´ëÇÑ ¿¬±¸°¡ ¼ö¹ÝµÇ¾î¾ß ÇÒ °ÍÀÌ´Ù.
In Korea-LTPP(Long Tenn Pavement Performance) project, the full depth asphalt pavement test sections are constructed on the national highway to evaluate the structural capacity of asphalt pavement reinforced with glass fiber. Truck loading test and FWD test were performed to measure the structural capacity of test sections. Test results showed that the reinforcement of glass fiber installed at between surface and intermediate asphalt layer decreased the strain at the bottom of surface layer and moved up the stress neutral axis in asphalt layer. As a result, the tensile stress was developed at the bottom of intermediate asphalt layer of reinforced asphalt pavement, while the compressive stress was developed at the bottom of intermediate asphalt layer of unreinforced asphalt pavement. On the other hand, the tensile strain at the bottom of asphalt base layer didn't show a difference between glass fiber reinforced and unreinforced pavements. From the FWD test, it was shown that the surface deflection of asphalt pavement reinforced with glass fiber decreased 24 percents comparing to that of unreinforced asphalt pavement. This shows that the reinforcement with glass fiber appears to improve the rutting resistance of asphalt pavement.
 
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Çѱ¹µµ·ÎÇÐȸ³í¹®Áý / v.10, no.4, 2008³â, pp.281-292
Çѱ¹µµ·ÎÇÐȸ
ISSN : 1738-7159
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO200806135607980)
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