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Çѱ¹µµ·ÎÇÐȸ / v.3, no.3, 2001³â, pp.135-146
½Å¼³ ÄÜÅ©¸®Æ® ±³¸é µ¡¾º¿ì±â¸¦ À§ÇÑ ¶óÅØ½º °³Áú ÄÜÅ©¸®Æ®ÀÇ °­µµ¹ßÇö Ư¼º
( Strength Development Properties of Latex Modified Concrete For New Concrete Bridge Deck Overlay )
À±°æ±¸;±è±âÇå;ÀÌÁÖÇü;ȫâ¿ì;±èµ¿È£; °­¿ø´ëÇб³ Åä¸ñ°øÇаú;½ÂÈ­ÀÌ¿£¾¾;°­¿ø´ëÇб³ ¼®À纹ÇÕ¿¬±¸¼¾ÅÍ;°­¿ø´ëÇб³ ¼®À纹ÇÕ¿¬±¸¼¾ÅÍ;°­¿ø´ëÇб³ Åä¸ñ°øÇаú;
 
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±âÁ¸ÀÇ ±³¸éÆ÷Àå°ø¹ýÀÇ ±Ùº»ÀûÀÎ ¹®Á¦Á¡À¸·Î ÀÎÇØ »õ·Î¿î ±³¸éÆ÷Àå °ø¹ýÀÌ Á¡Â÷ ºÎ°¢µÇ°í ÀÖ´Â ½ÇÁ¤À̸ç, »õ·Î¿î ±³¸éÆ÷Àå °ø¹ýÀ¸·Î ¿¬±¸µÇ°í ÀÖ´Â °ÍÀÌ ¶óÅØ½º °³Áú ÄÜÅ©¸®Æ®¸¦ ÀÌ¿ëÇÏ´Â °ÍÀÌ´Ù. µû¶ó¼­, º» ¿¬±¸¿¡¼­´Â ½Å¼³ ÄÜÅ©¸®Æ® ±³·® ±³¸éÆ÷ÀåÀ¸·Î µ¡¾º¿ì±âµÈ LMCÀÇ °­µµ¹ßÇö Ư¼º°ú µ¡¾º¿ì±â µÉ ¶§ÀÇ ±âÁ¸ÄÜÅ©¸®Æ®¿ÍÀÇ ºÎÂøÆ¯¼ºÀ» ÆÄ¾ÇÇϰíÀÚ ÇÏ¿´´Ù. ÀÌ·± ¿¬±¸¸¦ À§ÇØ ¶óÅØ½º È¥ÀÔ·ü¿¡ µû¸¥ ¶óÅØ½º °³Áú ÄÜÅ©¸®Æ®ÀÇ ¾ÐÃà°­µµ¿Í ÈÚ°­µµ, ±×¸®°í ±âÁ¸ÄÜÅ©¸®Æ®¿ÍÀÇ ºÎÂø°­µµ¸¦ ÃøÁ¤ÇÏ¿´´Ù. º» ¿¬±¸°á°ú ¶óÅØ½º È¥ÀÔ·® Áõ°¡·Î Æú¸®¸Ó ÀÔÀÚµéÀÇ º¼º£¾î¸µ ÀÛ¿ë, ¿¬ÇàµÈ °ø±â ¹× ¶óÅØ½º ¾È¿¡ ÀÖ´Â °è¸éȰ¼ºÁ¦ÀÇ ºÐ»êÀÛ¿ë¿¡ ÀÇÇÏ¿© LMCÀÇ ÀÛ¾÷¼º°ú ÈÚ°­µµ¸¦ Áõ°¡½ÃŲ´Ù´Â »ç½ÇÀ» ÆÄ¾Ç ÇÒ ¼ö ÀÖ¾ú°í, LMC¿Í ±âÁ¸ ÄÜÅ©¸®Æ® ½½·¡ºê¿ÍÀÇ ºÎÂø°­µµ´Â Å©°Ô ÁõÁøÇÔÀ» ¾Ë ¼ö ÀÖ¾ú´Ù.
This study focused on the investigation of compressive and flexural strengths development, and bond strength of latex modified concrete in order to validate the feasibility of application into concrete bridge deck overlay. Pull-out bond test was used for evaluating the bond strength of latex modified concrete to substrate. The main experimental variables were latex-cement ratio, surface preparation and moisture levels. The compressive strength of latex modified concrete decreased slightly and the flexural strength increased as the latex content increased from 5% to 20%. This might be due to the flexibility latex filled in voids and interconnections of hydrated cement and aggregates by a film of latex particles, respectively. In general, increasing the amount of latex will produce concrete with increased tensile and flexural strength and lower modulus of elasticity. Significant improvements in bond strength between new and existing concrete were achieved through the modification of the new concrete bridge deck overlay by latex polymers. The effect of surface preparation on bond of latex modified concrete to conventional concrete were significant at the conditions by sand paper and wire brush. A better bond could be achieved by rough surface rather than smooth. The saturated condition of surface is the most appropriate moisture level among the considered followed by dry condition and wet condition.
 
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½ºÆ¿·»-ºÎŸµð¿£ ¶óÅØ½º;¶óÅØ½º°³Áú ÄÜÅ©¸®Æ®;Á÷Á¢ÀÎ¹ß ½ÃÇè;±³¸éÆ÷Àå;latex modified concrete;direct pull-out bond test;bridge deck overlay;
 
Çѱ¹µµ·ÎÇÐȸ³í¹®Áý / v.3, no.3, 2001³â, pp.135-146
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ISSN : 1738-7159
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO200115637535365)
¾ð¾î : Çѱ¹¾î
³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø
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