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Çѱ¹µµ·ÎÇÐȸ / v.6, no.4, 2004³â, pp.1-12
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Àç»ý ¾Æ½ºÆÈÆ® ¹ÙÀδõÀÇ ¹°¸®Àû Ư¼º°ú Àú¿Â±Õ¿ ÀúÇ×¼º ¿¬±¸
( Physical Properties and Low Temperature Resistance of Recycled Binder ) |
| ÀÌ¿µ°ü;±èÁØÀº;µµ¿µ¼ö;±è±¤¿ì; µ¿¼º¿£Áö´Ï¾î¸µ;´Ù¿ì¿£Áö´Ï¾î¸µ;°¿ø´ëÇб³ ¼®À纹ÇÕ¿¬±¸¼¾ÅÍ;°¿ø´ëÇб³ Áö¿ª±â¹Ý°øÇаú;
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| º» ³í¹®Àº »ó¿Â»óÅÂÀÇ Æó¾Æ½ºÆÈÆ® Æ÷ÀåÀç·á¸¦ °¡¿ÀçȰ¿ëÇÏ¿© ±âÃþ¿ë»Ó¸¸ ¾Æ´Ï¶ó Ç¥Ãþ¿ëÀ¸·Î Ȱ¿ëÇÔ¿¡ ÀÖ¾î Àç»ý ¾Æ½ºÆÈÆ® ¹ÙÀδõÀÇ Æ¯¼ºÀ» ¿¬±¸ÇÑ °ÍÀÌ´Ù. 4Á¾·ùÀÇ RAPÀ» °¡Áö°í RAP ÀÚüÀÇ ±âº» ¹°¼ºÀ» ½ÃÇèÇÏ¿´´Ù. ¹èÇÕ¼³°è´Â Ç¥Ãþ¿¡´Â RAPÀ» 10, 20%¸¦ ÷°¡ÇÏ¿´°í, ±âÃþ¿¡´Â 10. 20, 30%¸¦ ÷°¡ÇÏ¿´´Ù. Àç»ýÈ¥ÇÕ¹°ÀÇ ½Å±Ô¹ÙÀδõ·Î´Â AC 60-80À» ¼±Á¤ÇÏ¿´´Ù. ħÀÔµµ, Á¡µµ, GPC, TFO. Àú¿Â±Õ¿ ÀúÇ×¼ºÀ» Æò°¡Çϱâ À§ÇÑ BBR ½ÇÇèÀ» ¼öÇàÇÏ¿´´Ù. Àý´ëÁ¡µµ¿Í GPC¿¡¼ÀÇ ´ëÇüÀÔµµºÐÀÚ(LMS)¸¦ Áö¼öÇÔ¼ö ȸ±ÍºÐ¼®À» ÅëÇØ $R^2$ÀÌ 0.95 ÀÌ»óÀ̾ú°í À̰ÍÀº Àý´ëÁ¡µµ ÃßÁ¤¿¡ GPC °á°ú°¡ »ó´çÈ÷ Á¤È®ÇÔÀ» ½Ã»çÇØÁÖ°í ÀÖ´Ù. RAPÀ» ÷°¡ÇÑ Àç»ý ¾Æ½ºÆÈÆ® ¹ÙÀδõÀÇ PG Àú¿Â µî±ÞÀº ÀÏ¹Ý ½Å±Ô ¹ÙÀδõ¿¡ ºñÇØ ÇÑ ´Ü°è ³ôÀº µî±ÞÀ» ³ªÅ¸³»¹Ç·Î Àú¿Â±Õ¿¿¡ ´ëÇÑ ÀúÇ×¼ºÀº ¾à°£ ¾àÇÑ °ÍÀ¸·Î ³ªÅ¸³µ´Ù. |
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| This study evaluated the asphalt binder characteristics for the hot-recycled asphalt mixture in which RAP was added in ambient temperature for surface course as well as for base course. RAPs were collected from four sources and their physical properties were evaluated. Mix designs were performed using 10 and 20% RAP contents for surface courses and 10, 20 and 30% for base courses. A virgin asphalt with the penetration grade of 60-80 was used for mixing recycled mixtures. Physical properties of recycled binders, including penetration, absolute viscosity, GPC, BBR and penetration after TFO were measured. From the results, regression analysis of absolute viscosity versus LMS in GPC showed $R^2$ being over 0.95, showing that GPC results estimate the absolute viscosity with relative accuracy. In BBR test, the resistance of recycled mixtures at low service temperature was inferior to the control, because the low temperature PG of recycled binder was one grade higher than that of the control binder. |
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| Ű¿öµå |
| ´ëÇüÀÔµµºÐÀÚ;PG Àú¿Â µî±Þ;RAP;GPC;TFO;BBR;LMS;low temperature PG; |
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Çѱ¹µµ·ÎÇÐȸ³í¹®Áý / v.6, no.4, 2004³â, pp.1-12
Çѱ¹µµ·ÎÇÐȸ
ISSN : 1738-7159
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO200415637517005)
¾ð¾î : Çѱ¹¾î |
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| ³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø |
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