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Çѱ¹µµ·ÎÇÐȸ / v.6, no.1, 2004³â, pp.37-45
Àç»ý°ñÀç ÄÜÅ©¸®Æ®ÀÇ °­µµ ¹× ÆÄ±«Æ¯¼º ½ÇÇè
( Characteristics of Strength and Fracture Toughness of Recycled Aggregate Concrete )
±èÁøÃ¶;¾ç¼ºÃ¶;Á¶À±È£;±è³²È£; µµ·Î±³Åë±â¼ú¿ø Àç·áȯ°æ¿¬±¸±×·ì;È«ÀÍ´ëÇб³ °ÇÃà°øÇаú;Áß¾Ó´ëÇб³ Åä¸ñ°øÇаú;Çѱ¹±â¼ú±³À°´ëÇб³ °ÇÃà°øÇаú;
 
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º» ¿¬±¸´Â Àç»ý°ñÀ縦 »ç¿ëÇÑ ÄÜÅ©¸®Æ®ÀÇ °­µµ ¹× ÆÄ±«Æ¯¼ºÀ» °íÂûÇϹǷνá ÄÜÅ©¸®Æ® Æ÷Àåü¿¡ Àû¿ë¼º ¿©ºÎ¸¦ °ËÅäÇϱâ À§ÇØ ¼öÇàÇÏ¿´´Ù. Àç»ýÄÜÅ©¸®Æ®ÀÇ ÃʱⰭµµ´Â ³·¾ÒÀ¸³ª Àç·É Áõ°¡¿¡ µû¶ó ±âÁØÄÜÅ©¸®Æ®¿Í °ÅÀÇ À¯»çÇÑ °ªÀ» ³ªÅ¸³»¾úÀ¸¸ç. ź¼º°è¼ö´Â °ñÀç °­¼º Â÷ÀÌ·Î ÀÎÇÏ¿© ³·°Ô ³ªÅ¸³µ´Ù. ¶ÇÇÑ °í·Î½½·¡±× ¹ÌºÐ¸»À» È¥ÇÕÇÑ Àç»ýÄÜÅ©¸®Æ®ÀÇ °­µµ°³¼±È¿°ú¸¦ È®ÀÎÇÒ ¼ö ÀÖ¾ú´Ù. TPFM¿¡ ÀÇÇÑ ÆÄ±«¿¡³ÊÁö´Â ÃʱâÀç·É¿¡¼­ Àç»ýÄÜÅ©¸®Æ®ÀÇ ÆÄ±«Æ¯¼ºÀÌ ¿ì¼öÇÑ °ÍÀ¸·Î ³ªÅ¸³µÀ¸³ª, Àç·ÉÁõ°¡¿¡ µû¶ó ±âÁØÄÜÅ©¸®Æ®¿Í À¯»çÇÑ °ªÀ¸·Î ³ªÅ¸³µ´Ù. ¶ÇÇÑ P-CMOD ÃøÁ¤°á°ú·ÎºÎÅÍ ÀÌ·ÐÀûÀ¸·Î ±¸ÇÑ Åº¼º°è¼ö ¹× ÀÎÀå°­µµ¿Í ½ÇÇèÀ¸·Î ±¸ÇÑ Åº¼º°è¼ö ¹× Âɰ·ÀÎÀå °­µµ»çÀÌÀÇ »ó°ü¼ºÀº ¸Å¿ì ³ôÀº °á°ú¸¦ ³ªÅ¸³»¾î ½ÃÇè¹æ¹ýÀÇ ½Å·Ú¼ºÀ» È®ÀÎÇÒ ¼ö ÀÖ¾ú´Ù.
The characteristics of concrete strength and fracture parameters of recycled aggregate concrete were investigated to apply to the concrete pavements. As the results, the early strength of recycled aggregate concrete showed to be lower than that of natural coarse aggregate concrete, whereas strength at 28 days showed to be similar. Young's modulus of recycled aggregate concrete was lower than that of natural coarse aggregate concrete due to the difference of aggregate strength. And recycled aggregate concrete contained with ground granulated blast furnace slag seemed to have an effect of strength increasing. The critical stress intensity factor of recycled aggregate concrete at the early age was increased, and converged to be similar, compared to natural aggregate concrete at later age. The reliability of two-parameter fracture model was identified by the good correlation between the theoretical value computed by P-CMOD relationship and experimental results for Young's modulus and tensile strength.
 
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Àç»ý ÄÜÅ©¸®Æ®;µÎ °³º¯¼ö ÆÄ±«¸ðµ¨;°í·Î½½·¡±× ¹ÌºÐ¸»;ÄÜÅ©¸®Æ® Æ÷Àå;recycled aggregate concrete;two-parameter fracture model;ground granulated blast furnace slag;concrete pavement;
 
Çѱ¹µµ·ÎÇÐȸ³í¹®Áý / v.6, no.1, 2004³â, pp.37-45
Çѱ¹µµ·ÎÇÐȸ
ISSN : 1738-7159
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO200415637516280)
¾ð¾î : Çѱ¹¾î
³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø
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