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Çѱ¹µµ·ÎÇÐȸ / v.6, no.4, 2004³â, pp.101-108
³ëÈÄÄÜÅ©¸®Æ®Æ÷Àå ¿øÀ§Ä¡ ÆÄ¼â±âÃþ(Rubblized-PCC)ÀÇ ¹Ý»ç±Õ¿­ ¾ïÁ¦¸¦ À§ÇÑ ÀûÁ¤ ÆÄ¼â ±íÀÌ »êÁ¤
( Estimation for optimum crush depth to prevent reflection crack for Rubblized-PCC in PCC pavements )
À̽¿ì;Àü»ó¹Î; °­¸ª´ëÇб³ Åä¸ñ°øÇаú;°­¸ª´ëÇб³ Åä¸ñ°øÇаú;
 
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³ëÈÄÄÜÅ©¸®Æ® Æ÷Àå ¼ö¸íÀ» ¿¬ÀåÇϱâ À§ÇÑ ¹æ¾ÈÀ¸·Î ¾Æ½ºÆÈÆ® µ¡¾º¿ì±â°¡ ÀϹÝÀûÀ̳ª ¹Ý»ç±Õ¿­À» ¾ïÁ¦ÇÏ±â ¾î·Æ´Ù´Â ´ÜÁ¡ÀÌ ÀÖ´Ù. ¹Ý»ç±Õ¿­À» ¾ïÁ¦Çϱâ À§ÇÏ¿© ÁÙ´«ºÎ º¸¼ö, ÀÀ·Â ¿ÏÈ­Ãþ ¼³Ä¡°¡ Àû¿ëµÇ´Â °æ¿ì°¡ ÀÖÀ¸³ª ¹Ý»ç±Õ¿­ÀÇ ÁøÀü ¼Óµµ¸¦ ´ÊÃß´Â Á¦ÇÑÀûÀÎ ¼º°øÀ» º¸¿© ¿Ô´Ù. ÄÜÅ©¸®Æ®Æ÷Àå ½½·¡ºê¸¦ ¿øÀ§Ä¡¿¡¼­ ÆÄ¼âÇÏ¿© ±âÃþÀç·á·Î Ȱ¿ëÇÏ°í ±× À§¿¡ µ¡¾º¿ì±â Æ÷ÀåÀ» °Ç¼³ÇÏ´Â ·¯ºí¶óÀÌÁ¦ÀÌ¼Ç °ø¹ýÀº ±âÁ¸ µ¡¾º¿ì±â º¸°­ °ø¹ýÀ» °®°í ÀÖ´Â ¹Ý»ç±Õ¿­ ¹®Á¦¸¦ ¿Ïº®ÇÏ°Ô ÇØ°áÇÒ ¼ö ÀÖ´Â ÀåÁ¡À» °¡Áö°í ÀÖ´Ù. ·¯¹ú¶óÀÌÁ¦ÀÌ¼Ç °ø¹ýÀ» Àû¿ëÇÒ °æ¿ì ÆÄ¼âµÈ ³ëÈÄ ÄÜÅ©¸®Æ® Æ÷ÀåÃþ »óºÎÃþÀº 40mm-70mm·Î ÆÄ¼âµÇ³ª ÇϺÎÃþÀº 100mmÀÌ»ó µÇ´Â °æ¿ì°¡ ÀϹÝÀûÀÌ´Ù. ±¹³» °í¼Óµµ·Î¿Í °°ÀÌ »ó´ëÀûÀ¸·Î µÎ²¨¿î ÄÜÅ©¸®Æ® Æ÷Àå ½½·¡ºê¸¦ »ç¿ëÇÏ´Â °æ¿ì Àüü Æ÷Àå µÎ²²¸¦ ÆÄ¼âÇϱ⿡ ¾î·Á¿òÀÌ ÀÖ´Ù. µû¶ó¼­ ÆÄ¼âµÈ ³ëÈÄ ÄÜÅ©¸®Æ® Æ÷ÀåÃþÀÌ ¹Ý»ç±Õ¿­À» À¯¹ß½ÃŰÁö ¾Ê´Â µµ·Î±âÃþÀ¸·Î½áÀÇ ¿ªÈ°À» È®º¸Çϱâ À§ÇÑ ÀûÁ¤ ÆÄ¼â ±íÀ̸¦ ÆÄ¾ÇÇϱâ À§ÇÏ¿© º» ¿¬±¸¿¡¼­´Â ¹Ì±¹ DOT¿¡¼­ Á¦¾ÈÇÑ ÀϹÝÀûÀÎ ÆÄ¼â±Ô°Ý(40mm-70mm)À» ±âÁØÀ¸·Î ÆÄ¼â ±íÀ̸¦ 0cm, 10cm, 20cm,·Î º¯È­½ÃÄѰ¡¸ç ¹Ý»ç±Õ¿­ ½Ç³» ¸ð»ç ½ÇÇèÀ» ¼öÇàÇÏ¿© ¹Ý»ç±Õ¿­ ÀúÇ× Æ¯¼ºÀ» ºÐ¼®Çϰí ÀûÁ¤ÆÄ¼â ±íÀ̸¦ °ËÅäÇÏ¿´´Ù.
Asphalt overlay method is a general method to extend the of life old concrete pavements. However, reflection cracks are the typical problem of the AC overlay on distressed concrete pavement. Joint sealing, stress absorbtion layer have been used to prevent reflection cracks however partial success of to delay the timing of reflection cracking was recognized. Reflection crack problem can be eliminated by using rubblization method, which crush concrete pavement slab into piece of aggregate size that can be used base material. Previous research on rubblization method indicated that the size of rubblized PCC ranged 40-70mm at upper layer, and more than 100mm at lower layer. In this study, the adequate depth of rubblized PCC that ran prevent reflection cracking of AC overlay is estimated base on the simulation test of reflection cracking with 0, 10, 20cm rubblized PCC base.
 
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¹Ý»ç±Õ¿­;·¯ºí¶óÀÌÁ¦ÀÌ¼Ç °ø¹ý;ÄÜÅ©¸®Æ® Æ÷Àå µ¡¾º¿ì±â;reflection crack;rubblization method;overlay in concrete pavements;
 
Çѱ¹µµ·ÎÇÐȸ³í¹®Áý / v.6, no.4, 2004³â, pp.101-108
Çѱ¹µµ·ÎÇÐȸ
ISSN : 1738-7159
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO200415637517210)
¾ð¾î : Çѱ¹¾î
³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø
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