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Çѱ¹µµ·ÎÇÐȸ / v.7, no.2, 2005³â, pp.13-22
Àç»ý°ñÀç 50% ÀÌÇÏ Ã·°¡µÈ Àç»ýÄÜÅ©¸®Æ®ÀÇ °­µµ ¹× ÇÇ·ÎÀúÇ× Æ¯¼º
( Strength and Fatigue Properties of Recycled Concretes Under 50% Recycled Aggregate Ratio )
µµ¿µ¼ö;±è¼ºÅÂ;±è±¤¿ì; °­¿ø´ëÇб³ ¼®À纹ÇÕ¿¬±¸¼¾ÅÍ;Á¤À±¿£Áö´Ï¾î¸µ;°­¿ø´ëÇб³ Áö¿ª±â¹Ý°øÇаú;
 
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°Ç¼³Æó±â¹°·ÎºÎÅÍ ¼±º°µÈ Àç»ý°ñÀçÀÇ »ç¿ëÀº õ¿¬ÀÚ¿øÀÌ ºÎÁ·ÇÑ Çö½Ç¿¡ ÀÖ¾î ¸¹Àº ±âȸ¸¦ Á¦°øÇÑ´Ù. Àü ¼¼°èÀûÀ¸·Î ÇÑÁ¤µÈ õ¿¬ÀÚ¿øÀº °í°¥µÇ¾î°¡°í ÀÖÀ¸¸ç °ñÀçÀÇ Àå°Å¸® ¼ö¼ÛÀº ³·Àº °¡°ÝÀÇ Àç»ý°ñÀ縦 »ç¿ëÇÏ´Â °Íº¸´Ù ´õ ºñ°æÁ¦Àû ÀÏ ¼ö ÀÖ´Ù. ¿¬°£ Çѱ¹¿¡¼­ ´ë·« 7¹é¸¸ÅæÀÇ ÆóÄÜÅ©¸®Æ®°¡ ¹ß»ýÇÏÁö¸¸ ÀÌÁß ´ë·« 2-3¹é¸¸ Á¤µµ¸¸ ÀçȰ¿ëµÇ°í ÀÖ´Â ½ÇÁ¤ÀÌ´Ù. º» ¿¬±¸´Â ÆóÄÜÅ©¸®Æ®·ÎºÎÅÍ ¾ò¾îÁø Àç»ý°ñÀ縦 ÀÌ¿ëÇÏ´Â ¹æ¹ý¿¡ ´ëÇØ¼­ Á¦½ÃÇϰíÀÚ ÇÑ´Ù. Àç»ýÄÜÅ©¸®Æ®´Â ¾ÐÃà°­µµ, ÈÚ°­µµ, ÇǷνÃÇèÀ» À§ÇØ w/c 40, 50, 60%¿¡ ´ëÇÏ¿© Á¦ÀÛÇßÀ¸¸ç, ȥȭÀç·Î´Â ÇöóÀֽ̾¬ (15%)¸¦ »ç¿ëÇÏ¿´´Ù. õ¿¬°ñÀç¿¡ ´ëÇÑ Àç»ý°ñÀçÀÇ ´ëüÀ²Àº 0, 25, 50%·Î ÇÏ¿´´Ù. ÀÌ ¿¬±¸ÀÇ ¸ñÀûÀº Àç»ý°ñÀç ÄÜÅ©¸®Æ®ÀÇ ÇǷμö¸é°ú õ¿¬°ñÀç ÄÜÅ©¸®Æ®ÀÇ ÇǷμö¸íÀ» ºñ±³Çϴµ¥ ÀÖ´Ù. º» ¿¬±¸¸¦ ÅëÇØ Àç»ý°ñÀç ÄÜÅ©¸®Æ®ÀÇ ÇǷμö¸íÀº õ¿¬°ñÀç¿¡ ´ëÇÑ Àç»ý°ñÀçÀÇ ´ëüÀ²°ú w/c¿¡ »ó°ü¼ºÀÌ ÀÖÀ½À» ¾Ë ¼ö ÀÖ¾ú´Ù.
Using recycled aggregate from demolished concrete structures provides a peat opportunity fur conserving natural resources. In many parts of world, virgin aggregate deposits have been depleted, and transporting aggregates over long distances can be much more expensive than using a low-cost recycled aggregate. In Korea, about 7-million tons of concrete occurs annually, out of this, about 2-3 million tons are available for recycling. This study is to present the method of utilizing the recycled aggregate. The recycled aggregate concretes were made for compressive strength test, flexural strength test and fatigue test using w/c of 40, 50 and 60%. The replacing rates of recycled aggregate to virgin aggregate were 0, 25 and 50%. The purpose of this study is to compare the fatigue lift of recycled aggregate concrete with that of virgin aggregate concrete. It was shown that the fatigue life of recycled concrete was function of recycled aggregate replacement ratio and water cement ratio.
 
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ÆóÄÜÅ©¸®Æ®;ÇǷμö¸í;Àç»ý°ñÀç;Àç»ý ÄÜÅ©¸®Æ®;demolished concrete structures;fatigue life;recycled aggregate;recycled concrete;
 
Çѱ¹µµ·ÎÇÐȸ³í¹®Áý / v.7, no.2, 2005³â, pp.13-22
Çѱ¹µµ·ÎÇÐȸ
ISSN : 1738-7159
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO200515637507039)
¾ð¾î : Çѱ¹¾î
³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø
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