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Çѱ¹°ÇÃà½Ã°øÇÐȸ / v.11, no.5, 2011³â, pp.419-425
¼¿·ê·Î¿À½º ¼¶À¯ Á¾·ù¿¡ µû¸¥ ÄÜÅ©¸®Æ®ÀÇ ±âÃÊ ¹°¼º Æò°¡¿¡ °üÇÑ ¿¬±¸
( Evaluation of the Basic Properties of Concrete with Types of Cellulose Fibers )
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ÄÜÅ©¸®Æ®ÀÇ Æ¯¼º»ó »ó´ëÀûÀ¸·Î ÀÛÀº ÀÎÀå°­µµ·Î ÀÎÇÏ¿© ±Õ¿­¿¡ Ãë¾àÇÑ ¼ºÁúÀ» °¡Áö°í ÀÖ´Ù. µû¶ó¼­ º» ¿¬±¸¿¡¼­´Â ¹«±Ù ÄÜÅ©¸®Æ®ÀÇ ±Õ¿­Àú°¨À» À§ÇÏ¿© õ¿¬¼¶À¯ Áß ¼º´ÉÀÌ ¿ì¼öÇÑ °ÍÀ¸·Î ¾Ë·ÁÁø Ȳ¸¶¼¶À¯¿¡ ´ëÇÏ¿© ´Ù¸¥ Á¾·ùÀÇ ¼¿·ê·Î¿À½º ¼¶À¯¿Í ºñ±³ °ËÅäÇÏ¿© º¸¾Ò´Ù. ±× °á°ú Ȳ¸¶ ¼¶À¯ÀÇ °æ¿ì À¯µ¿¼º Ãø¸é¿¡¼­ ´Ù¸¥ ¼¶À¯¿¡ ºñÇÏ¿© ¾çÈ£ÇÑ °á°ú¸¦ ³ªÅ¸³»¾ú°í, ƯÈ÷ ¼Ò¼º¼öÃà ±Õ¿­ ÀúÇ×¼ºÀÇ °æ¿ì È¥ÀÔ·® 0.9 ¹× 1.2 kg/$m^3$¿¡¼­ Ç÷¹ÀÎ ´ëºñ 50 % ÀÌ»óÀÇ ±Õ¿­Àú°¨ ¼º´ÉÀ» ¹ßÈÖÇÏ¿´À¸¸ç, Ãæ°Ý½ÃÇèÀÇ °æ¿ì WF ¹× PULP ¼¶À¯¿¡¼­ ÃÖÁ¾ÆÄ±«±îÁö 5ȸÀÇ ³«ÇÏȽ¼ö°¡ °É¸®´Â ¹Ý¸é Ȳ¸¶¼¶À¯´Â È¥ÀÔ·®¿¡ µû¶ó Â÷À̰¡ ÀÖÁö¸¸ 10~18ȸ·Î ¿ì¼öÇÑ ÀμºÀû ¼ºÁúÀ» ¹ßÈÖÇϰí ÀÖ´Â °ÍÀ¸·Î ³ªÅ¸³µ´Ù.
Topping concrete that is not reinforced with rebar to prevent poor tensile performance is vulnerable to cracking. In this study, jute, which is known to be an excellent natural fiber material for strengthening concrete performance, was compared with other cellulose fibers in terms of its capacity to reduce the cracking of concrete. As a result, it was found that compared with concrete using other fibers, concrete using jute fiber showed more than a 50 % reduction of plastic shrinkage crack resistance with the contents of 0.9 kg/$m^3$ and 1.2 kg/$m^3$ for. For impact strength tests, the final destruction of WF and PULP fibers took up to 5 times the number of falls, while jute has 10-18 circuitry, showing excellent ductility properties.
 
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¹«±Ù ÄÜÅ©¸®Æ®;Ȳ¸¶¼¶À¯;¼¿·ê·Î¿À½º ¼¶À¯;topping concrete;jute fiber;cellulose fiber;
 
Çѱ¹°ÇÃà½Ã°øÇÐȸÁö / v.11, no.5, 2011³â, pp.419-425
Çѱ¹°ÇÃà½Ã°øÇÐȸ
ISSN : 1598-2033
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO201132833920350)
¾ð¾î : Çѱ¹¾î
³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø
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