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Çѱ¹µµ·ÎÇÐȸ / v.11, no.1, 2009³â, pp.95-104
À¯ÀüÀ² ÃøÁ¤À» ÅëÇÑ ¾Æ½ºÆÈÆ® ÄÜÅ©¸®Æ®ÀÇ °ø±Ø·ü ÃßÁ¤ ¿¬±¸
( Evaluation and Determination of Air Void for Asphalt Concrete using a dielectric constant measurement )
±èºÎÀÏ;±è¿µ¹Î;Á¶Àμ±; Çѱ¹°Ç¼³±â¼ú¿¬±¸¿ø;Çѱ¹°Ç¼³±â¼ú¿¬±¸¿ø;¼­¿ï´ëÇб³ ½Å¼ÒÀç°øµ¿¿¬±¸¼Ò;
 
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º» ¿¬±¸´Â ¾Æ½ºÆÈÆ® ÄÜÅ©¸®Æ®ÀÇ À¯ÀüÀ²°ú °ø±Ø·üÀÇ »ó°ü¼ºÀ» Æò°¡Çϱâ À§ÇØ ¼öÇàµÇ¾ú´Ù. À̸¦ À§ÇØ ´Ù¾çÇÑ ¹üÀ§ $(0%{sim}20%)$ÀÇ °ø±Ø·üÀ» °®´Â ¾Æ½ºÆÈÆ® ÄÜÅ©¸®Æ® ½ÃÆíÀ» Á¦ÀÛÇÏ¿´°í, ÀúÁÖÆÄ À¯ÀüÀ² ÃøÁ¤¹ýÀÎ parallel plate¹ýÀ» »ç¿ëÇÏ¿© ¾Æ½ºÆÈÆ® ÄÜÅ©¸®Æ® ½ÃÆíÀÇ À¯ÀüÀ²À» ÃøÁ¤ÇÏ¿´´Ù. ¾Æ½ºÆÈÆ® ÄÜÅ©¸®Æ® ½ÃÆíÀÇ °æ¿ì Á֯ļö°¡ Áõ°¡ÇÔ¿¡ µû¶ó À¯ÀüÀ²Àº °¨¼ÒÇÏ´Â °æÇâÀ» ³ªÅ¸³»¾ú°í, »ç¿ëÇÑ ¾Æ½ºÆÈÆ® ¹ÙÀδõÀÇ Á¾·ù¿¡ µû¶ó ±× °¨¼ÒÆøÀÌ ´Ù¸£°Ô ³ªÅ¸³µ´Ù. ¶ÇÇÑ °ø±Ø·ü $0%{sim}20%$ »çÀÌ¿¡¼­ °ø±Ø·üÀÌ Áõ°¡ÇÔ¿¡ µû¶ó À¯ÀüÀ² °ªÀº ¼±ÇüÀûÀ¸·Î °¨¼ÒÇÏ´Â °æÇâÀ» º¸¿´´Ù. ´õºÒ¾î ¾Æ½ºÆÈÆ® ÄÜÅ©¸®Æ® ½ÃÆíÀÇ À¯ÀüÀ²¿¡ ´ëÇÑ ¿Âµµ ¹× ÇÔ¼ö·® ¿µÇâÀ» º¸Á¤ÇÏ¿© À¯ÀüÀ²¿¡ µû¸¥ °ø±Ø·üÀÇ »ó°ü½ÄÀ» Á¦½ÃÇÏ¿´´Ù. º» ¿¬±¸¸¦ ÅëÇØ Á¦½ÃµÈ ¾Æ½ºÆÈÆ® ÄÜÅ©¸®Æ®ÀÇ À¯ÀüÀ²°ú °ø±Ø·üÀÇ »ó°ü½ÄÀº ÇöÀç ±¹³»¿Ü¿¡¼­ »ç¿ëÇϰí ÀÖ´Â À¯ÀüÀ²À» Ȱ¿ëÇÑ ºñÆÄ±« ¹Ðµµ ÃøÁ¤ÀåºñÀÇ º¸Á¤¸ðµ¨·Î Ȱ¿ë °¡´ÉÇϸç, ÇâÈÄ ±¹³»¿¡¼­ °³¹ßÇϰíÀÚ ÇÏ´Â ¾Æ½ºÆÈÆ® Æ÷Àå ºñÆÄ±« ¹Ðµµ ÃøÁ¤ÀåºñÀÇ ±âº»ÀûÀÎ ¾Ë°í¸®ÁòÀ¸·Î Ȱ¿ëÀÌ °¡´ÉÇÒ °ÍÀÌ´Ù.
This study was conducted to evaluate the relationship between the dielectric constant and air void of asphalt concrete. Standard specimens that have air voids of various range $(0%{sim}20%)$ were used to measure the dielectric constant using parallel plate method that measures low frequency dielectric constant. From the tests, dielectric constant of asphalt concrete was tend to decrease as the frequency was increased, and the decrement slope was varied with the types of asphalt binders. Dielectric constant was decreased linearly as air void was increased from zero to twenty percent. Consequently, the effect of temperature and moisture content on dielectric constants of asphalt concrete was evaluated to develop the standard curve between dielectric constant and air void of asphalt concrete. The standard curve developed in this study can be used to calibrate or develop the algorithm of non-destructive density gauge.
 
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¾Æ½ºÆÈÆ® ÄÜÅ©¸®Æ®;¹Ðµµ;°ø±Ø·ü;À¯ÀüÀ²;asphalt concrete;density;air void;dielectric constant;
 
Çѱ¹µµ·ÎÇÐȸ³í¹®Áý / v.11, no.1, 2009³â, pp.95-104
Çѱ¹µµ·ÎÇÐȸ
ISSN : 1738-7159
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO200911850421596)
¾ð¾î : Çѱ¹¾î
³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø
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