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Çѱ¹µµ·ÎÇÐȸ / v.4, no.4, 2002³â, pp.13-21
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( Effect of Curing Temperature and Time on Measuring Fundamental Properties of Asphalt Mixture )
±è±¤¿ì;È«»ó±â;¿ÀÈï¶ô;À̼øÁ¦; °­¿ø´ëÇб³ ³ó¾÷°øÇкÎ;°­¿ø´ëÇб³ ´ëÇпø Áö¿ª±â¹Ý°øÇаú;¹ü¾Æ¿£Áö´Ï¾î¸µ;°­¿ø´ëÇб³ ¼®Àç½Å¼ÒÀç¼¾ÅÍ;
 
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º» ¿¬±¸¿¡¼­´Â ¾Æ½ºÆÈÆ® È¥ÇÕ¹°ÀÇ Æ¯¼ºÀ» Æò°¡ÇÏ´Â ´ëÇ¥ÀûÀÎ ¹æ¹ýÀÎ ¸¶¼£¾ÈÁ¤µµ¿Í °£Á¢ÀÎÀå°­µµ ½ÃÇè½Ã ¾ç»ý¿Âµµ¿Í ¾ç»ý½Ã°£ ¹× ½ÃÇè¿Âµµ¿¡¼­ÀÇ Ã³¸®½Ã°£ÀÌ °á°ú¿¡ ¹ÌÄ¡´Â ¿µÇâÀ» ºñ±³ºÐ¼® ÇÏ¿´´Ù. ¸¶¼£¾ÈÁ¤µµ ½ÃÇèÀº °ø½Ãü¸¦ $60^{circ}C$·Î À¯ÁöµÇ´Â ¼öÁ¶¿¡ 30ºÐ ¼öħ ÈÄ ¼öÇàÇÏÁö¸¸, °ø½ÃüÀÇ ¾ç»ý½Ã°£¿¡ °üÇÑ ±âÁØÀº ¾ø´Ù. °£Á¢ÀÎÀå°­µµ ½ÃÇèÀÇ °æ¿ì´Â ½ÃÇè¿Âµµ´Â $25^{circ}C$¶ó°í Á¤ÇØÁ® ÀÖÁö¸¸ ¸¶¼£¾ÈÁ¤µµ ½ÃÇè°ú ¸¶Âù°¡Áö·Î ¾ç»ý½Ã°£¿¡ °üÇÑ ±âÁØÀº ¾ø´Ù. ¶ÇÇÑ °£Á¢ÀÎÀå°­µµ ½ÃÇèÀ» Çϱâ Àü °ø½ÃüÀÇ ¿Âµµ¸¦ $25^{circ}C$·Î ¸ÂÃß±â À§ÇÏ¿© Ç׿ÂÇ×½À±â µî°ú °°Àº ÀåÄ¡¿¡ ÀÏÁ¤½Ã°£ º¸°üÇØ¾ß Çϴµ¥ ÀÌ°Í ¿ª½Ã Á¤ÇØÁø ±ÔÁ¤ÀÌ ¾ø´Ù. ¿¬±¸°á°ú, °ø½ÃüÀÇ ¾ç»ý¿Âµµ¿¡ µû¶ó ¾ÈÁ¤µµ¿Í °£Á¢ÀÎÀå°­µµ °ªÀº ¸¹Àº Â÷À̸¦ ³ªÅ¸³Â´Ù. µû¶ó¼­, ½ÇÇè½Ç ¿Âµµ°¡ $25^{circ}C$º¸´Ù ³ô°Å³ª ³·À¸¸é, È¥ÇÕ¹°ÀÇ ¾ç»ýÀÌ Á¦´ë·Î µÇÁö ¾Ê¾Æ ½ÃÇè°á°úÀÇ ½Å·Ú¼ºÀÌ ¶³¾îÁú °ÍÀÌ´Ù. ¾ç»ý¿Âµµ º¯È­¿¡ µû¸¥ ½ÃÇè°ª º¯È­¸¦ ÃÖ¼ÒÈ­Çϱâ À§ÇÏ¿©. ¸¶¼£¾ÈÁ¤µµ ½ÃÇè½Ã °ø½Ãü¸¦ $60^{circ}C$ ¼öÁ¶¿¡ ¼öÄ§ÇØ¾ß ÇÏ´Â ½Ã°£°ú °£Á¢ÀÎÀå°­µµ ½ÃÇè Àü °ø½Ãü¸¦ $25^{circ}C$¿¡ º¸°üÇØ¾ß ÇÏ´Â ½Ã°£À» Á¦¾ÈÇÏ¿´´Ù.
This study examines the importance of conditioning temperature and period before measuring fundamental properties of asphalt mixture. Marshall specimens were made and cured in the air for one day and conditioned by submerging at $60^{circ}C$ water for 30 min before loading. It was observed that if the specimen was cured in a lower (or higher) than normal lab temperature ($25^{circ}C$) before submerging, the measured values were not consistent. Indirect tensile strength (ITS) was also measured on the specimens cured at different temperatures. Although there is no regulation specifying how long the specimen should be conditioned before testing, it is recommended that the conditioning time be for the specimen to be at $25^{circ}C$. Test must be conducted for the specimen cured well before conditioning for desired test. If curing temperature was lower or higher than normal, and mixture was not properly cured, then test results would not be reliable. This study showed how long the specimen should be submerged at $60^{circ}C$ for Marshall test and conditioned at $25^{circ}C$ for ITS test for the specimens cured in different temperature.
 
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Çѱ¹µµ·ÎÇÐȸ³í¹®Áý / v.4, no.4, 2002³â, pp.13-21
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ISSN : 1738-7159
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO200215637527296)
¾ð¾î : Çѱ¹¾î
³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø
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