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Çѱ¹µµ·ÎÇÐȸ / v.3, no.4, 2001³â, pp.93-103
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ÄÜÅ©¸®Æ® ±³¸é µ¡¾º¿ì±â¸¦ À§ÇÑ SB ¶óÅØ½º°³Áú ÄÜÅ©¸®Æ®ÀÇ ÇöÀåÀû¿ë¼º Æò°¡
( Field Applicability Evaluation of SB Latex-Modified Concrete for Concrete Bridge Deck Overlay ) |
| À±°æ±¸;ÀÌÁÖÇü;ȫâ¿ì;±è±âÇå;±èŰæ; °¿ø´ëÇб³ Åä¸ñ°øÇаú;°¿ø´ëÇб³ ¼®À纹ÇսżÒÀçÁ¦Ç°¿¬±¸¼¾ÅÍ;°¿ø´ëÇб³ ¼®À纹ÇսżÒÀçÁ¦Ç°¿¬±¸¼¾ÅÍ;½ÂÈÀÌ¿£¾¾;½ÂÈÀÌ¿£¾¾ ±â¼ú¿¬±¸¼Ò;
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| º» ¿¬±¸¿¡¼´Â ÄÜÅ©¸®Æ® µ¡¾º¿ì±â¸¦ À§ÇÑ SB ¶óÅØ½º°³Áú ÄÜÅ©¸®Æ®ÀÇ ÇöÀåÀû¿ë¼º Æò°¡¸¦ À§ÇØ ÇöÀå¿¡¼ ¸ðºô¹Í¼¸¦ ÀÌ¿ëÇÏ¿© ¹èÇÕ½ÇÇè ÇÏ¿© ÀÛ¾÷¼º, °µµ¹ßÇöƯ¼º ¹× Åõ¼öƯ¼ºÀ» µîÀ» °íÂûÇÏ¿´´Ù. À̸¦ À§ÇØ ÁÖ¿ä ½ÇÇ躯¼ö´Â ¶óÅØ½º È¥ÀÔ·ü(0, 5, 10, 15, 20%), W/C (31, 33, 35 37%), S/a(55, 56, 57, 58%) ¸¦ ¼±Á¤ÇÏ¿´À¸¸ç, Ãʱ⽽·³ÇÁ, ½½·³ÇÁ ¼Õ½Ç, °ø±â·®, ¾ÐÃà°µµ ¹× ÈÚÀÎÀå°µµ ¹ßÇöƯ¼º, ¿°ÈÀ̿ ÃËÁø ½ÇÇè µîÀ» ¼öÇàÇÏ¿´´Ù. ½ÇÇè°á°ú, ¸ðºô¹Í¼Â÷·®À» ÀÌ¿ëÇØ¼ SB¶óÅØ½º°³Áú ÄÜÅ©¸®Æ®¸¦ ÇöÀå¿¡¼ ¹èÇÕÇÏ¿´À» ¶§ ÃæºÐÇÑ ÀÛ¾÷¼º ¹× ¾çÁúÀÇ ÄÜÅ©¸®Æ®¸¦ »ý»ê ÇÒ ¼ö ÀÖ¾úÀ¸¸ç ¸ñÇ¥ ¾ÐÃà°µµ¿Í ÈÚ°µµ¸¦ ¾òÀ» ¼ö ÀÖ¾ú´Ù. ¸ðºô¹Í¼ Â÷·®À» ÀÌ¿ëÇÑ ¹èÇÕÀº ½Ç³»½ÇÇè¿¡¼ Á¦½ÃµÈ ÃÖÀû¹èÇÕÀÇ µ¿ÀÏÇÑ ÀÛ¾÷Á¶°ÇÀ» ¾ò±â À§ÇÑ ¹°-½Ã¸àÆ®ºñ°¡ ´Ù¼Ò ³·¾ÆÁö´Â °ÍÀ¸·Î ³ªÅ¸³µ´Ù. Ãʱ⠹èÃâ ½½·³ÇÁ $19{pm}3cm$À» ¾ò±â À§ÇÑ ½Ç³»½ÇÇè ¹èÇÕÀº ¹°-½Ã¸àÆ®ºñ 37%¿´À¸³ª, ¸ðºô¹Í¼Â÷·®À» ÀÌ¿ëÇÑ °æ¿ì´Â 33%ÀÇ ¹°-½Ã¸àÆ®ºñ¸¦ ³ªÅ¸³»¾ú´Ù. ¶ÇÇÑ, ÇöÀå Àû¿ë¿¡ À־µ ¸ðºô¹Í¼¸¦ ÀÌ¿ëÇÑ Á¤È®ÇÑ °è·® ¹× ¶óÅØ½ºÀÇ È¥ÀÔÀ¸·Î ¾çÁúÀÇ ÄÜÅ©¸®Æ® »ý»ê ¹× ¼º´É°³¼±À» ±â´ëÇÒ ¼ö ÀÖÀ½À» È®ÀÎÇÏ¿´´Ù. |
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| This study focused on the field applicability evaluation of SB latex-modified concrete (LMC) for concrete bridge deck overlay using mobile mixer. The main experimental factors were water-cement ratio(31, 33, 35 37%), latex contents(0, 5, 10, 15, 20%), and fine aggregate ratio(55, 56, 57, 58%) in order to evaluate the workability, mechanical properties, and durability property of LMC. The slump loss, air content, compressive and flexible strength tests were used to evaluate LMC workability and strength properties. Also, the rapid chloride permeability test was used to evaluate the relative permeability of LMC. As a results, the LMC with enough workability and good quality was produced when it was mixed in field using mobile mixer, satisfying the target compressive strength and flexural strength. The required water-cement ratio of LMC for same workability when mixing with mobile mixer was less than that when mixing in laboratory. Increasing the amount of latex produced concrete with increased flexural strength by mobile mixer. The required cement-water ratios for same initial $19{pm}3cm$ slump were 37% and 33% at laboratory and mobile mixer, respectively. The mobile mixer was accurately calibrated satisfying the required specification. |
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| ¶óÅØ½º°³ÁúÄÜÅ©¸®Æ®;Åõ¼ö¼º;¸ðºô¹Í¼;ÄÜÅ©¸®Æ®±³¸é µ¡¾º¿ì±â;ÇöÀåÀû¿ë;latex modified concrete;permeability;mobile mixer;bridge deck overlay;field application; |
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Çѱ¹µµ·ÎÇÐȸ³í¹®Áý / v.3, no.4, 2001³â, pp.93-103
Çѱ¹µµ·ÎÇÐȸ
ISSN : 1738-7159
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO200115637535648)
¾ð¾î : Çѱ¹¾î |
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| ³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø |
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