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Çѱ¹°ÇÃà½Ã°øÇÐȸ / v.11, no.4, 2011³â, pp.363-370
°íºÐ¸» ¸®Á§Æ®¾Ö½Ã¸¦ È¥ÀÔÇÑ ½Ã¸àÆ®º¹ÇÕüÀÇ ±âº»¹°¼º¿¡ °üÇÑ ¿¬±¸
( Fundamental Physical Properties of Cement Composites Containing Fineness Reject Ash )
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º» ¿¬±¸¿¡¼­´Â È­·Â¹ßÀü¼Ò¿¡¼­ ¹ß»ýÇÏ´Â Æó±â¹°ÀÎ ¸®Á§Æ® ¾Ö½Ã¸¦ ÀÚ¿øÈ­Çϱâ À§ÇÏ¿© ½Ã¸àÆ® È¥ÇÕÀç·Î »ç¿ëÇÏ´Â ¹æ¾ÈÀ» °ËÅäÇϰíÀÚ ÇÏ¿´´Ù. À̸¦ À§ÇÏ¿© Æ÷Á¹¶õ Ȱ¼ºµµ ºñ±³¸¦ ÅëÇÏ¿© È¿À²ÀûÀÎ ¸®Á§Æ®¾Ö½ÃÀÇ ºÐ¸»µµ¸¦ ¼±Á¤ÇÏ¿´À¸¸ç, ÇöÀç ³Î¸® »ç¿ëµÇ°í ÀÖ´Â ÄÜÅ©¸®Æ®¿ë È¥ÇÕÀçÀÎ ÇöóÀÌ¾Ö½Ã¿Í ºñ±³ÇÏ¿´´Ù. °íºÐ¸» ¸®Á§Æ®¾Ö½Ã¿Í ÇöóÀֽ̾ø¦ ½½·¡±×½Ã¸àÆ®¿Í È¥ÇÕÇÏ¿© ½Ã¸àÆ®º¹ÇÕü¸¦ Á¦Á¶ÇÏ¿´À¸¸ç, Á¦Á¶ÇÑ ½Ã¸àÆ®º¹ÇÕü ¹× °íºÐ¸» ¸®Á§Æ®¾Ö½ÃÀÇ ¼º´É Æò°¡¸¦ À§ÇÏ¿© ÆäÀ̽ºÆ®(ÀÀ°á, À¯µ¿¼º, ±â±âºÐ¼®), ¸ð¸£Å¸¸£(¾ÐÃà°­µµ) ½ÇÇèÀ» ½Ç½ÃÇÏ¿´´Ù. ±â±âºÐ¼® °á°ú °íºÐ¸» ¸®Á§Æ®¾Ö½ÃÀÇ ¼öÈ­¹ÝÀÀ±â±¸´Â ÇöóÀÌ¾Ö½Ã¿Í À¯»çÇÏÁö¸¸ ¹Ì¼¼Á¶Á÷ÀÌ Ä¡¹ÐÇØÁö´Â Ư¼ºÀ» ³ªÅ¸³»¾ú´Ù. ¹°¼º ÃøÁ¤°á°ú¿¡¼­´Â °íºÐ¸» ¸®Á§Æ®¾Ö½Ã°¡ ÇöóÀÌ¾Ö½Ã¿Í ºñ±³ÇÏ¿© ÀÀ°áÁö¿¬ÀÌ °¨¼ÒÇϰí, ÃʱⰭµµ ¹× Àå±â°­µµ¿¡¼­ ¿ì¼öÇÑ ¼º´ÉÀ» ³ªÅ¸³»¾ú´Ù. µû¶ó¼­ ¸®Á§Æ®¾Ö½ÃÀÇ ºÐ¸»µµ¸¦ $6,000cm^2$/g ¼öÁØÀ¸·Î »óÇâ½ÃŲ´Ù¸é ½Ã¸àÆ® º¹ÇÕü¿¡ Ȱ¿ëÇÏ´Â °ÍÀÌ °¡´ÉÇϸç, ½Ã¸àÆ® ¹°¼º Çâ»ó¿¡µµ ±â¿©ÇÒ ¼ö ÀÖÀ» °ÍÀ¸·Î ¿¹»óµÈ´Ù.
This study considerated reject ash, wastes of coal-fired power plants, to use mineral admixtures for cement. The pozzolan activity selected the fineness of the efficient reject ash through comparison and it compared to the fly ash that are widely used for concrete mixed material. Cement composites was prepared replacing of slag cement by fineness reject ash and fly ash, and properties of cement composites was tested by paste(setting time, fluidity, instrumental analysis) and mortar(compressive strength). Instrumental analysis results showed hydration reaction of fineness reject ash was not different from fly ash, but had more dense micro structures. Results of physical properties showed fineness reject ash shorten setting time, increased compressive strength compared by fly ash. Therefore using fineness reject ash with $6,000cm^2$/g to concrete mineral admixtures or cement composites was might be possible and could contribute to improve properties of concrete.
 
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ÇöóÀֽ̾Ã;°íºÐ¸» ¸®Á§Æ®¾Ö½Ã;ġȯÀ²;fly ash;fineness reject ash;replacement ratio;
 
Çѱ¹°ÇÃà½Ã°øÇÐȸÁö / v.11, no.4, 2011³â, pp.363-370
Çѱ¹°ÇÃà½Ã°øÇÐȸ
ISSN : 1598-2033
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO201125153145900)
¾ð¾î : Çѱ¹¾î
³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø
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