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Çѱ¹µµ·ÎÇÐȸ / v.8, no.1, 2006³â, pp.1-13
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¹ÙÀδõ ȸ»ý¹æ½ÄÀ» °³¼±ÇÑ Àç»ý ¾Æ½ºÆÈÆ® ÄÜÅ©¸®Æ®ÀÇ ¼Ò¼ºº¯Çü Ư¼º ¿¬±¸
( Evaluation of Permanent Deformation Characteristics of Recycled Asphalt Concretes Made by Improved Binder-Rejuvenation ) |
| ±è±¤¿ì;±Ç¿À¼±;µµ¿µ¼ö; °¿ø´ëÇб³ Áö¿ª±â¹Ý°øÇаú;Çѱ¹µµ·Î°ø»ç µµ·Î±³Åë±â¼ú¿ø Æ÷À忬±¸½Ç;°¿ø´ëÇб³ ¼®À纹ÇսżÒÀ翬±¸¼¾ÅÍ;
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| º» ³í¹®Àº °¡¿ Àç»ý¾Æ½ºÆÈÆ® ÈçÇÕ¹°ÀÇ ¼º´ÉÀ» Çâ»ó½Ã۱â À§ÇÑ ¹æ¹ýÀ» °³¹ßÇϱâ À§ÇÑ ¿¬±¸ÀÇ ÀϺκÐÀÌ´Ù. »õ·ÎÀÌ °³¹ßµÈ È¥ÇÕ ¹æ¹ýÀº ȸ¼ö ¾Æ½ºÆÈÆ® Æ÷ÀåÀÇ ±âÁ¸ ¹ÙÀδõ¸¦ ÈξÀ ¸¹ÀÌ È¸»ý½ÃÄÑ Àç»ý È¥ÇÕ¹°¿¡¼ ±ÕÀÏÇÑ ¹ÙÀδõÀÇ Á¤µµ¸¦ °®°Ô ÇÑ´Ù. º» ¿¬±¸ÀÇ ¸ñÀûÀº »õ·ÎÀÌ °³¹ßµÈ È¥ÇÕ ¹æ¹ýÀ¸·Î Á¦Á¶µÈ Àç»ý¾Æ½ºÆÈÆ® È¥ÇÕ¹°ÀÇ ¼Ò¼ºº¯Çü ÀúÇ× Æ¯¼ºÀ» Æò°¡ÇÏ´Â °ÍÀÌ´Ù. µÎ Á¾·ù °ñÀç(Æí¸¶¾Ï Ȱ¾Ï), RAPÀÇ µÎ °¡Áö ÇÔ·®(15, 30%), LDPEÀÇ µÎ °¡Áö ÷°¡·®(0, 6%)¸¦ ÀÌ¿ëÇÏ¿´À¸¸ç, È¥ÇÕ¹æ¹ýÀº ¹ÙÀδõÀÇ ºÒ±Õµî »óŸ¦ °³¼±Çϱâ À§ÇÑ µÎ °¡Áö ¹æ¹ý, Áï ÀϹÝÀûÀÎ ±âÁ¸ÀÇ A ¹æ¹ý°ú »õ·Ó°Ô °³¹ßÇÑ F ¹æ¹ýÀ» ÀÌ¿ëÇÏ¿´´Ù. Àç»ý È¥ÇÕ¹° ³»ÀÇ ¹ÙÀδõ »êÈ Á¤µµÀÇ Â÷¸¦ Á¶»çÇϱâ À§ÇÏ¿© GPCºÐ¼®À» ½Ç½ÃÇÏ¿´°í, ÈçÇÕ ¹æ¹ý¿¡ µû¸¥ ¼Ò¼ºº¯Çü ÀúÇ×¼ºÀ» Æò°¡Çϱâ À§ÇÏ¿© °¢ È¥ÇÕ ¹æ¹ý¿¡ µû¶ó Á¦ÀÛÇÑ Àç»ý ÈçÇÕ¹°À» ÈÙ Æ®·¢Å· ½ÃÇè°ú º¯Çü°µµ¸¦ ÃøÁ¤ÇÏ¿´´Ù. ¼Ò¼ºº¯Çü ÀúÇ× Æ¯¼º°ú º¯Çü°µµ¿ÍÀÇ »ó°ü°ü°è´Â ±âÁ¸ÀÇ A ¹æ¹ýº¸´Ù »õ·Ó°Ô °³¹ßµÈ F ¹æ¹ýÀÌ ´õ ³ô°Ô ³ªÅ¸³ª, F ¹æ¹ýÀ¸·Î Á¦Á¶µÈ È¥ÇÕ¹°ÀÇ Ç°ÁúÀÌ º¸´Ù Àϰü¼º ÀÖ´Â ¼Ò¼ºº¯Çü ÀúÇ×¼ºÀ» ³ªÅ¸³»´Â °ÍÀ» ¾Ë ¼ö ÀÖ¾ú´Ù. |
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| This paper is one of the studies for developing new methodologies for improving performance of hot-mix recycled asphalt mixtures. The objective of this study is to evaluate rut-resistance characteristics of recycled asphalt mixture which was prepared by newly developed mixing method. The new mixing method provided more sufficient rejuvenation of old binder of reclaimed asphalt pavement (RAP), making homogeneous binder viscosity level in a recycled mixture. Two aggregates (gneiss and granite), two RAP contents (15% and 30%) and two contents (none and 6%) of polymer modifier (LDPE) were used. Recycled mixture was prepared with two methods; method A and method F. To examine difference of binder oxidation level by type of material within a recycled mixture, Gel-permeation chromatography(GPC) analysis was performed on the binders mixed with coarse aggregates and matrix separately. Laboratory tests were performed for evaluation of rut resistance characteristics of each recycled mixture and these includes wheel tracking (WT) test and Kim test. Rut depth and dynamic stability were obtained from WT test and deformation strength $(S_D)$ was obtained from Kim test. The results of regression analysis was shown that correlation $(R^2)$ of F mixing mixtures was higher than one of A mixing mixtures. Therefore, F mixing mixtures showed more consistent rut resistance than h mixing mixtures. |
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| Àç»ý¾Æ½ºÆÈÆ® ÄÜÅ©¸®Æ®;º¯Çü°µµ;Àç»ý÷°¡Á¦;RAP;GPC;Kim test;$S_D$ rejuvenator;rut depth;polymer modifier; |
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Çѱ¹µµ·ÎÇÐȸ³í¹®Áý / v.8, no.1, 2006³â, pp.1-13
Çѱ¹µµ·ÎÇÐȸ
ISSN : 1738-7159
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO200617033452390)
¾ð¾î : Çѱ¹¾î |
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| ³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø |
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