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Çѱ¹µµ·ÎÇÐȸ / v.3, no.1, 2001³â, pp.165-176
ÄÜÅ©¸®Æ®Æ÷ÀåÀÇ ÁÙ´«ÀÇ Àá±è¿¡ ´ëÇÑ ¿¬±¸
( A Study for Joint Freezing in Concrete Pavement )
À̽¿ì; (ÁÖ)´ë¿ì°Ç¼³;
 
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ÁÙ´«ÄÜÅ©¸®Æ®Æ÷ÀåÀÇ ÁÙ´«Àº ¿Âµµ ¹× ½Àµµº¯È­¿¡ ±âÀÎÇÏ¿© ¹ß»ýÇÏ´Â ½½·¡ºê³»¿¡ ¹«ÀÛÀ§ÇÏ°Ô ¹ß»ýÇÏ´Â ±Õ¿­À» Á¦¾îÇÒ ¸ñÀûÀ¸·Î ¼³°èµÈ´Ù. ÀÌ·¯ÇÑ ÀÎÀ§ÀûÀÎ ±Õ¿­ (ÁÙ´«)Àº ÀÚ¿¬¹ß»ýÀûÀÎ ±Õ¿­¿¡ ºñÇÏ¿© ÁÙ´«Ã¤¿ò, ÇÏÁßÀü´ÞÀåÄ¡µîÀÇ º¸È£´ëÃ¥À» °­±¸ÇÏ´Â °ÍÀÌ ¿ëÀÌÇÏ´Ù´Â ÀåÁ¡À» °¡Áö°í ÀÖ´Ù. ÁÙ´«Ã¤¿òÀÇ ÀáÀçÀûÀÎ ÀÌÁ¡Àº Ç¥¸é¼öÀÇ ÇϺÎÃþÀ¸·ÎÀÇ Ä§Åõ·Î ÀÎÇÑ ÇϺÎÃþÀÇ ¾àÈ­ ¹× ºñ¾ÐÃ༺ ¹°Áú (ÀÛÀº ÀÔÀÚÀ§ °ñÀç)ÀÇ ÁÙ´«³»¿¡ ³¢¾îµêÀ¸·Î ÀÎÇÑ ½ºÆú¸µÀ» ¹æÁöÇϴµ¥ ÀÖ´Ù. ÇÕ¸®ÀûÀÎ ÁÙ´« ä¿òÀÇ ¼³°è¸¦ À§Çؼ­´Â ÁÙ´«ÆøÀÇ º¯È­ (ÁÙ´«ÀÇ ¼öÆò ¿òÁ÷ÀÓ)ÀÇ »êÁ¤ÀÌ Áß¿äÇÑ ÀԷ¿ä¼ÒÀÌ´Ù. LTPP SMP ¿¬±¸¿¡ Æ÷ÇÔµÈ 16°³ÀÇ ÁÙ´«ÄÜÅ©¸®Æ®Æ÷ÀåÀÇ ÁÙ´«ÀÇ ¼öÆò¿òÁ÷ÀÓ¿¡ ´ëÇÑ Àå±â ÇöÀå°èÃøÀڷḦ Åä´ë·Î »ó´ç¼öÀÇ ÁÙ´«¿¡¼­ ¼öÆò¿òÁ÷ÀÓÀ» Çã¿ëÇÏÁö ¾Ê°í ÀÖ´Ù´Â °ÍÀÌ ¹àÇôÁø¹Ù ÀÖ´Ù. ÀÌ·¯ÇÑ Çö»óÀ» ÁÙ´«Àá±èÀ̶ó°í ÇÑ´Ù. ÁÙ´«Àá±èÀÌ ¹ß»ýÇÏ´Â ¿øÀÎÀº ¼³°è»ó¿¡ °èȹµÈ ÁÙ´«ºÎÀÇ ±Õ¿­ÀÌ ¹ß»ýÇÏÁö ¾Ê±â ¶§¹®À̶ó°í ÃßÁ¤µÈ´Ù. º» ¿¬±¸¿¡¼­´Â ÀÓÀÇÀÇ ÁÙ´«ÄÜÅ©¸®Æ®Æ÷Àå¿¡¼­ ÁÙ´«Àá±èÀÇ ºñÀ²À» ¿¹ÃøÇÒ ¼ö ÀÖ´Â ¸ðµ¨À» Á¦½ÃÇÏ¿´°í ÁÙ´« Àá±èÀÌ Æ÷ÀåüÀÇ ¼º´É¿¡ ¹ÌÄ¡´Â ¿µÇâÀ» Á¶»çÇÏ¿´´Ù.
Joints in jointed concrete Pavement are designed to control against randomly occurred cracks within slabs, which may be caused by temperature or moisture variation. The advantage of these artificial cracks (joints) over naturally occurred cracks are easy access of protections, such as installation of joint seal and load transfer mechanism. The potential benefits of joint seals are to prevent infiltration of surface water through the joint into underlying soil and intrusion of incompressible materials (debris, fine size aggregate) in to the joint, which may prevent weakening of underlying soils and spallings due to excessive compressive stress, respectively. For the adequate design of joint seal, horizontal variation of joint widths (horizontal joint movements) are essential inputs. Based on long-term in-situ joint movement data of sixteen jointed concrete pavement sections in Long Term Performance Pavement Seasonal Monitoring Program (LTPP SMP), it was indicated that considerable Portion of joints showed no horizontal movements with change in temperature. This Phenomenon is called 'Joint Freezing'. Possible cause for joint freezing is that designed penetrated cracks do not occur at a joint. In this study, a model for the prediction of the ratio of freezing joints in a particular pavement sections is proposed. In addition, possible effects of joint freezing against pavement performance are addressed.
 
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ÁÙ´«ÄÜÅ©¸®Æ®Æ÷Àå;ÁÙ´«Ã¤¿òÀç;ÁÙ´«Àá±è;Jointed Concrete Pavement;Joint Seal;Joint Freezing;
 
Çѱ¹µµ·ÎÇÐȸ³í¹®Áý / v.3, no.1, 2001³â, pp.165-176
Çѱ¹µµ·ÎÇÐȸ
ISSN : 1738-7159
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO200115637534595)
¾ð¾î : Çѱ¹¾î
³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø
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