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Çѱ¹µµ·ÎÇÐȸ / v.9, no.2, 2007³â, pp.89-99
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¾Æ½ºÆÈÆ® ÄÜÅ©¸®Æ® ź¼º°è¼ö °áÁ¤À» À§ÇÑ Ãæ°Ý°øÁø½ÃÇè ¿µÇâ¿ä¼Ò Æò°¡
( Evaluation of Effects on Impact Resonance Test for Determining Modulus of Asphalt Concrete ) |
| ±Ç±âö;ÀÌÀçȯ; µ¿ÀÇ´ëÇб³ Åä¸ñ°øÇаú;µ¿ÀÇ´ëÇб³ Åä¸ñ°øÇаú;
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| º¹¼Ò¼ö°è¼ö $E^*$·Î Ç¥ÇöµÇ´Â ¾Æ½ºÆÈÆ® ÄÜÅ©¸®Æ®ÀÇ Åº¼º°è¼ö´Â ¾Æ½ºÆÈÆ® Æ÷Àå¼³°è¿¡¼ ¸Å¿ì Áß¿äÇÑ ÀԷº¯¼ö´Ù. ÀϹÝÀûÀ¸·Î ¾Æ½ºÆÈÆ® ÄÜÅ©¸®Æ®ÀÇ Åº¼º°è¼ö´Â µ¿Åº¼º °è¼ö½ÃÇè (Dynamic Modulus Test)À» »ç¿ëÇÏ¿© Æò°¡ÇÑ´Ù. ±×·¯³ª µ¿Åº¼º°è¼ö½ÃÇèÀº ÀÏ»óÀûÀÎ ½ÃÇè¹ýÀ¸·Î Àû¿ëÇϱ⿡´Â °í°¡ÀÇ ½ÃÇèÀåºñ, º¹ÀâÇÑ ½ÃÇèÀåºñ, ¸¹Àº ½ÃÇè½Ã°£ µîÀÇ ¹®Á¦°¡ ÀÖ´Ù. ÀÌ¿¡ ¹ÝÇÏ¿© Ãæ°Ý°øÁø½ÃÇè(IR: Impact Resonance test)Àº ºñÆÄ±«½ÃÇèÀ¸·Î¼ °£ÆíÇÑ ½ÃÇèÀåÄ¡, ´Ü¼øÇÑ ½ÃÇè¹æ¹ýÀÌ¸ç ¹Ýº¹¼ºÀÌ ¶Ù¾î³ª´Ù. º» ¿¬±¸ÀÇ ÁÖ¿ä ¸ñÀûÀº Ãæ°ÝÇÏÁßÀÇ Å¸°ÝÀ§Ä¡ ½ÃÆí°ÅÄ¡ ¹æ¹ý Ãæ°ÝÇÏÁß¿øÀÇ Æ¯¼º, ½Åȣȹµæ ¼Óµµ, ½Åȣ󸮹æ¹ý µîÀ» Æ÷ÇÔÇÑ IR½ÃÇèÀÇ ½ÃÇèÁ¶°ÇÀÇ ¿µÇâÀ» Æò°¡ÇÏ´Â °ÍÀÌ´Ù. º» ¿¬±¸¿¡¼ Àû¿ëÇÑ ¸ðµç ½ÃÇèÁ¶°Ç ¹üÀ§¿¡¼ Ãæ°Ý°øÁø½ÃÇè¿¡¼ ÃøÁ¤µÈ °á°úÀÇ º¯µ¿Àº ${pm}2.7%$ À̳»¿¡ µé¾ú´Ù. |
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| The stiffness of the asphalt concrete is represented by the complex modulus $E^*$, which is very important properties in the mechanistic design of flexible pavement system. The moduli of asphalt concrete were generally determined by dynamic modulus test. However, the dynamic modulus testing method is too complex, expensive, and time consuming to be applicable on a production basis. The IR(Impact Resonance) method has been shown to be a truly simple nondestructive testing method which produces very repetitive, consistent results. The major object of this study was to estimate of the effects on IR tests for determining modulus of asphalt concrete including impact position, specimen support condition, impact steel ball size and sampling rate. The variations of IR test results with various testing conditions are within ${pm}2.7%$. |
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| Ãæ°Ý¹ÝÇâ½ÃÇè;¾Æ½ºÆÈÆ® ÄÜÅ©¸®Æ®;°øÁøÁ֯ļö;ź¼º°è¼ö;°¨¼èºñ;impact resonance test;asphalt concrete;resonance frequency;modulus;damping ratio; |
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Çѱ¹µµ·ÎÇÐȸ³í¹®Áý / v.9, no.2, 2007³â, pp.89-99
Çѱ¹µµ·ÎÇÐȸ
ISSN : 1738-7159
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO200722941481998)
¾ð¾î : Çѱ¹¾î |
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| ³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø |
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