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Çѱ¹µµ·ÎÇÐȸ / v.10, no.2, 2008³â, pp.183-191
º¯Çü°­µµ ½ÃÇè¿ë ÇÏÁߺÀÀÇ ¿øÇüÀý»è¹Ý°æ ¼±Á¤¿¬±¸
( Determination of radius of edge round cut of loading head for deformation strength test )
¹ÚÅ¿ø;µµ¿µ¼ö;±è±¤¿ì; Çѱ¹µµ·Î±³Å뿬±¸¿ø.µµ·Î¿¬±¸ÆÀ;°­¿ø´ëÇб³ Áö¿ª°Ç¼³°øÇаú;°­¿ø´ëÇб³ Áö¿ª±â¹Ý°øÇаú;
 
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º» ¿¬±¸¿¡¼­´Â ¾Æ½ºÆÈÆ® È¥ÇÕ¹°ÀÇ º¯Çü°­µµ½ÃÇè¿¡¼­ ÇÏÁߺÀÀÇ Ä¡¼ö°¡ º¯Çü°­µµ Ư¼º¿¡ ¹ÌÄ¡´Â ¿µÇâÀ» Æò°¡ÇÏ¿´´Ù. À̸¦ À§ÇÏ¿© Á÷°æ(D) 40mm, ÇÏ´ÜÀÇ ¿øÇü Àý»è ¹Ý°æ(r)À» 10.0mm¿Í 10.5mm·Î Á¦ÀÛÇÑ µÎ °³ÀÇ ÇÏÁߺÀÀ¸·Î ¾Æ½ºÆÈÆ® È¥ÇÕ¹°ÀÇ º¯Çü°­µµ¸¦ ÃøÁ¤Çϰí, ¹Ýº¹ÁÖÇà½ÃÇèÀ» ¼öÇàÇÏ¿© ¾ò¾îÁø ¼Ò¼ºº¯Çü Ư¼ºÄ¡¿Í »ó°ü¼º ºÐ¼®À» ÇÏ¿´´Ù. ¶ÇÇÑ ÇÏÁߺÀÀÇ ¿øÇü Àý»è¹Ý°æ¿¡ µû¸¥ °ñÀçÄ¡¼ö¿¡ ¾î¶°ÇÑ ¿µÇâÀ» ¹ÌÄ¡´ÂÁö¸¦ È®ÀÎÇϱâ À§ÇÏ¿© Åë°è ºÐ¼®À» ÇÏ¿´´Ù. º¯Çü°­µµ °ª°ú º¯µ¿°è¼ö´Â r=10mmÇÏÁߺÀÀ» »ç¿ëÇÑ °ÍÀÌ ´õ ³·Àº °ÍÀ¸·Î ³ªÅ¸³µ´Ù. ¶ÇÇÑ r=10mm ÇÏÁߺÀÀÌ º¯Çü°­µµ¿Í ¼Ò¼ºº¯Çü Ư¼ºÄ¡¿Í »ó°ü¼º ºÐ¼®¿¡¼­µµ ´õ ³ôÀº »ó°ü¼ºÀ» º¸¿´´Ù. °ñÀçÄ¡¼ö¿Í ¿øÇü Àý»è¹Ý°æÀº º¯Çü°­µµ¿¡ ¿µÇâÀ» ¹ÌÄ¡´Â °ÍÀ¸·Î ³ªÅ¸³µÀ¸³ª µÎ º¯¼öÀÇ ±³È£ÀÛ¿ë¿¡¼­´Â °ñÀçÀÇ Å©±â°¡ $10mm{sim}19mm$³»¿¡¼­´Â r¿¡ ¿µÇâÀ» ¹ÞÁö ¾Ê´Â °ÍÀ¸·Î ³ªÅ¸³µ´Ù. µû¶ó¼­ ¼Ò¼ºº¯Çü°úÀÇ »ó°ü¼ºÀÌ ´õ ¿ì¼öÇÏ¸ç º¯µ¿°è¼öµµ ³·Àº °ÍÀ¸·Î ³ªÅ¸³­ D=40mm, r=10.0mmÀÇ ÇÏÁߺÀÀ» »ç¿ëÇÏ´Â °ÍÀÌ ÀûÇÕÇÒ °ÍÀ¸·Î ÆÇ´ÜµÇ¾ú´Ù.
This study evaluated influence of the loading head dimension on characteristics of deformation strength ($S_D$) of asphalt mixtures. Kim test and Wheel tracking (WT) test were conducted to evaluate $S_D$ characteristics with relation to WT results for various mixtures. The $S_D$ values and coefficient of variation of $S_D$ values of r=10mm were smaller than those of r=10.5mm. It was also found that $S_D$ values obtained using r=10mm loading head showed high correlations with rut parameters of WT test. It was indicated that the aggregate size and radius (r) of round cut were statistically significant variables on $S_D$ at = 0.05 level in the analysis of variance. However, in interaction of r and aggregate size showed no significance within $10{sim}19mm$ aggregate size at the same level. Therefore, it was concluded that the diameter (D) of 40mm and the bottom edge radius (r) of 10mm was suitable dimension of loading head for deformation strength test.
 
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º¯Çü°­µµ;ÇÏÁߺÀ;¹Ýº¹ÁÖÇà½ÃÇè;¼Ò¼ºº¯Çü;ºÐ»êºÐ¼®;´ÙÁß¹üÀ§ºÐ¼®;±³È£ÀÛ¿ë;deformation strength;loading head;wheel tracking;rut;variance analysis;asphalt mixture;
 
Çѱ¹µµ·ÎÇÐȸ³í¹®Áý / v.10, no.2, 2008³â, pp.183-191
Çѱ¹µµ·ÎÇÐȸ
ISSN : 1738-7159
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO200824556528997)
¾ð¾î : Çѱ¹¾î
³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø
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