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Çѱ¹µµ·ÎÇÐȸ / v.3, no.2, 2001³â, pp.91-102
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°³Áú ¹× ºñ°³Áú ¾Æ½ºÆÈÆ® ¹ÙÀδõÀÇ »õ·Î¿î °í¿Âµî±Þ ¿¬±¸
( A Study of New High Temperature Grading for Modified and Unmodified Asphalt Binders ) |
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| Bahia et al. (1998)Àº ¿©·¯ ½ÇÇèÀ» ÅëÇÏ¿© ÇöÀçÀÇ ¼öÆÛÆäÀÌºê °ø¿ë¼º µî±Þü°è·Î´Â ¸ðµç °³Áú¹ÙÀδõÀÇ µî±ÞÀ» ±ÔÁ¤ÈÇÒ ¼ö ¾ø´Ù´Â °á·ÐÀ» ¸Î°í ÀÖ´Ù. ÀÌ·¯ÇÑ °á·ÐÀº °³Áú¾Æ½ºÆÈÆ® ¹ÙÀδõ¿¡ ÀûÇÕÇÑ ¿Ã¹Ù¸¥ µî±Þü°è¸¦ °³¹ßÇϵµ·Ï µ¿±â¸¦ ºÎ¿©ÇÑ´Ù. º» °³¹ßÀÇ Á߿䰳³äÀº °í¿Â¿¡¼ÀÇ ¼Ò¼ºº¯Çü±íÀÌ¿Í ¹ÙÀδõ¼ºÁú »çÀÌÀÇ »ó°ü°ü°è·ÎºÎÅÍ ½ÃÀ۵ȴÙ. ¿©±â¿¡ Á¦¾ÈµÈ °³Áú¾Æ½ºÆÈÆ® ¹ÙÀδõ¸¦ À§ÇÑ »õ·Î¿î µî±Þü°è´Â Huh et al. (2000)ÀÌ ¿¬±¸ÇÑ ºñ °³Áú¹ÙÀδõÀÇ µî±Þü°è¿Í ´Ù¼Ò µ¿ÀÏÇÏ´Ù. µû¶ó¼ º» ¿¬±¸´Â °³Áú°ú ºñ°³Áú¹ÙÀδõ µÑ ´Ù¿¡ °øÈ÷ Àû¿ë °¡´ÉÇÑ Å»ÀÏ °í¿Âµî±Þ À̷нÄÀ» Á¦°øÇϰí, µ¶¸³Àû ¿¬±¸¿¡ ÀÇÇØ ¹ßÇ¥µÈ ½ÇÇè½Ç ¹× ÇöÀå ¼Ò¼ºº¯Çü µ¥ÀÌÅ͸¦ ÀÌ¿ëÇÏ¿© Á¦½ÃµÈ ½ÄÀÇ È¿¿ë¼ºÀ» Á¡°ËÇÑ´Ù. ÀÌ·Î ÀÎÇØ °üÃøµÇ´Â ¼º°øÀûÀÎ °á°ú´Â °¡±î¿î Àå·¡¿¡ Á¤È®ÇÑ µî±Þü°è¸¦ Á¤¸³ÇÒ ¼ö ÀÖ´Â °¡´É¼ºÀ» ½Ã»çÇØÁØ´Ù. |
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| On the basis of several experiments peformed, Bahia et al. (1998) concluded that the current Superpave PG-grading system failed to characterize grading specification of fill modified binders. This conclusion motivates us to investigate the correct grating system suited for modified asphalt binders. The main concept of this development is originated from the relationship between rut depth and binder properties at high temperatures. A new grading system for modified asphalt binders suggested here somewhat resembles to the unmodified binder grading one developed by Huh et al. (2000). Thus, this investigation will provide a unified single theoretical equation of high temperature grading that can apply both to modified and unmodified binders, and will check its effectiveness with the laboratory and the field rut data reported by independent studies. Successful results observed may allow to construction of a correct grading system in the near future. |
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| ¹ÙÀδõµî±ÞÀÌ·Ð;°³Áú ¹× ºñ°³Áú ¾Æ½ºÆÈÆ®;Á¡µµ;ħÀÔµµ; PG µî±Þ;Theory of Binder Grading;Modified and Unmodified Asphalts;Viscosity;Penetration;Superpave PG-grading; |
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Çѱ¹µµ·ÎÇÐȸ³í¹®Áý / v.3, no.2, 2001³â, pp.91-102
Çѱ¹µµ·ÎÇÐȸ
ISSN : 1738-7159
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO200115637534939)
¾ð¾î : ¿µ¾î |
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| ³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø |
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