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Çѱ¹µµ·ÎÇÐȸ / v.6, no.2, 2004³â, pp.1-13
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°ø½Ãü Å©±â°¡ º¯Çü°µµ¸¦ ÀÌ¿ëÇÑ ¼Ò¼ºº¯Çü ÃßÁ¤¿¡ ¹ÌÄ¡´Â ¿µÇâ
( Specimen Size Effect in Estimation of Rut Resistance based on Deformation Strength ) |
| À̹®¼·;ÃÖ¼±ÁÖ;µµ¿µ¼ö;±è±¤¿ì; Çѱ¹°Ç¼³±â¼ú¿¬±¸¿ø Åä¸ñ¿¬±¸ºÎ µµ·Î½Ã¼³¿¬±¸±×·ì;°¿ø´ëÇб³ ´ëÇпø Áö¿ª±â¹Ý°øÇаú;°¿ø´ëÇб³ ¼®À纹ÇսżÒÀ翬±¸¼¾ÅÍ;°¿ø´ëÇб³ Áö¿ª±â¹Ý°øÇаú;
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| º» ³í¹®Àº Á¤ÇÏÁßÇÏ¿¡¼ ±èÅ×½ºÆ®¸¦ »ç¿ëÇÏ¿© ¾Æ½ºÆÈÆ® ÄÜÅ©¸®Æ®ÀÇ ¼Ò¼ºº¯Çü°ú º¯Çü°µµ°¡ °ø½Ãü¿¡ Å©±â¿¡ ¹ÌÄ¡´Â ¿µÇâ¿¡ ´ëÇØ ¿¬±¸ÇÏ¿´´Ù. 2°¡Áö °ñÀç(Æí¸¶¾Ï, Ȱ¾Ï)¿Í 6°¡Áö ¾Æ½ºÆÈÆ®¸¦ »ç¿ëÇÏ¿© ÃÑ14°³ÀÇ ¹ÐÀÔµµ È¥ÇÕ¹°À» »ç¿ëÇÏ¿´´Ù. ¸¶¼£ ¹èÇÕ¼³°è¸¦ ÅëÇØ ÃÖÀû¾Æ½ºÆÈÆ® ÇÔ·®À» ±¸ÇÏ°í °áÁ¤µÈ ÃÖÀû¾Æ½ºÆÈÆ® ÇÔ·®À¸·Î ¸¶¼£°ø½Ãü (S=10cm)¿Í ÀÚÀÌ·¹Å丮 °ø½Ãü(S=15cm)¸¦ Á¦ÀÛÇÏ¿© ¸¶¼£¾ÈÁ¤µµ½ÃÇè, ÈÙÆ®·¡Å·½ÃÇè, °³¹ßµÈ ±èÅ×½ºÆ®(Kim test)¸¦ ¼öÇàÇÏ¿´´Ù. SAS ºÐ¼®À» ÅëÇÏ¿© °ø½ÃüÀÇ Áö¸§ÀÌ ±èÅ×½ºÆ®ÀÇ °á°ú¿¡ Áß¿äÇÑ º¯¼ö°¡ ¾Æ´Ñ °ÍÀ» ¾Ë¾ÒÀ¸³ª °ø½ÃüÀÇ µÎ²²´Â $K_D$¿¡ ÁÖ¿ëÇÑ º¯¼ö°¡ µÇ´Â °ÍÀ» ¾Ë¾Ò´Ù. $K_D$°ª¿¡ y°ªÀÌ »ç¿ëµÇ¾î ¿µÇâÀ» ¹ÌÄ¡´Â °ÍÀ¸·Î ÆÇ´ÜµÇ¾ú´Ù. °ø½ÃüÀÇ µÎ²²¸¦ 6.6cm ÀÌ»óÀ¸·Î Á¦ÀÛÇÏ¿© ±èÅ×½ºÆ®¿¡ Àû¿ë ÇÒ¶§¿¡´Â ¸¶¼£¾ÈÁ¤µµ¿¡¼¿Í °°ÀÌ y °ª¿¡ µû¸¥ º¸Á¤°è¼ö¸¦ »ç¿ëÇϰųª ½ÃÇè½Ã 6.6cm ¹Ì¸¸À¸·Î Á¦ÀÛÇÏ¿©¾ß ÇÒ °ÍÀÌ´Ù. ÇâÈÄ º¸Á¤°è¼ö »ç¿ë¿¡ °üÇÑ ¿¬±¸µµ °¡´ÉÇÒ °ÍÀ¸·Î ÆÇ´ÜµÈ´Ù. |
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| This study dealt with size effect of specimen in measuring deformation strength and estimating rut resistance of asphalt concretes under static loading using Kim test. Two aggregates, a normal asphalt (pen 60-80) and 6 polymer-modified asphalt (PMA) binders were used for preparation of 14 dense-graded mixtures. Mixtures were prepared based on optimum asphalt content by Marshall compactor (S= 10cm) and gyratory compactor (S= 15cm) for Kim test and for wheel tracking test. In statistical analysis by general linear model (GLM) procedure of SAS, the diameter of specimen was found not to be a significant factor that affect the Kim test result. Therefore, it was found that either loom-diameter or 15cm-diameter of specimen gave no significant difference in deformation strength ($K_D$) values in Kim test for any aggregate mixture. However, the thickness of specimen was found to be a significant factor in determining $K_D$. It is estimated that $K_D$ is a function of y, vertical deformation, and y has something to do with thickness of specimen. Therefore, it is suggested that the thickness of specimen should not be higher than 6.6cm, and the correction factor depending on the thickness value should be developed in the future study. |
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| ±èÅ×½ºÆ®;º¯Çü°µµ;ÈÙÆ®·¡Å·;¼Ò¼ºº¯Çü;µÎ²²;Kim test;null;wheel tracking;rut resistance;thickness; |
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Çѱ¹µµ·ÎÇÐȸ³í¹®Áý / v.6, no.2, 2004³â, pp.1-13
Çѱ¹µµ·ÎÇÐȸ
ISSN : 1738-7159
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO200415637508239)
¾ð¾î : Çѱ¹¾î |
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| ³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø |
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