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Çѱ¹Áö¹Ý°øÇÐȸ / v.23, no.11, 2007³â, pp.77-85
Áؼ³Åä¿Í Bottom Ash ÀçȰ¿ëÀ» À§ÇÑ º¹ÇÕÁö¹ÝÀç·á °³¹ß
( Development of Composite Geo-Material for Recycling Dredged Soil and Bottom Ash )
±èÀ±ÅÂ;ÇÑ¿ìÁ¾;Á¤µÎȸ; ºÎ°æ´ëÇб³ ÇØ¾ç°øÇаú;ºÎ°æ´ëÇб³ ÇØ¾ç°øÇаú;ºÎ°æ´ëÇб³ Åä¸ñ¾ç°øÇаú;
 
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º» ¿¬±¸¿¡¼­´Â Áؼ³Åä ¹× Bottom ash¸¦ µ¿½Ã¿¡ ÀçȰ¿ëÇϱâ À§ÇÏ¿© °³¹ßµÈ º¹ÇÕÁö¹ÝÀç·áÀÇ ¿ªÇÐÀû Ư¼ºÀ» °íÂûÇÏ¿´´Ù. º» ½ÇÇè¿¡¼­ Á¦ÀÛµÈ º¹ÇÕÁö¹ÝÀç·á´Â ºÎ»ê ½ÅÇ× °Ç¼³ÇöÀå¿¡¼­ äÃëÇÑ Áؼ³Åä, ½Ã¸àÆ®, ±âÆ÷ ¹× »ïõÆ÷ È­·Â¹ßÀü¼Ò¿¡ ¼­ ¹ß»ýÇÑ Bottom ash·Î ±¸¼ºµÇ¾îÁ³´Ù. ´Ù¾çÇÑ ¹èÇÕºñ·Î Á¦ÀÛµÈ º¹ÇÕÁö¹ÝÀç·áÀÇ ¿ªÇÐÀû Ư¼ºÀ» °íÂûÇϰí, ƯÈ÷ Bottom ash È¥ÇÕ¿¡ ÀÇÇÑ ¿ªÇÐÀû °Åµ¿ Ư¼ºÀ» Á¶»çÇϱâ À§ÇÏ¿© ´Ù¾çÇÑ ½Ç³»½ÇÇèÀÌ ¼öÇàµÇ¾îÁ³´Ù. º¹ÇÕÁö¹ÝÀç·á¿¡ ´ëÇÑ ½ÇÇè°á°ú ÀÀ·Â-º¯Çü °ü°è¿Í ÀÏÃà¾ÐÃà°­µµ´Â ¹èÇÕÁ¶°Ç¿¡ Å©°Ô ÀÇÁ¸ÇÏ´Â °ÍÀ¸·Î ³ªÅ¸³µ°í, ƯÈ÷ Bottom ash È¥Çսà ¾ÐÃà°­µµ ¹× ÀÀ·Â-º¯Çü °î¼±ÀÇ ±â¿ï±â°¡ Áõ°¡ÇÏ´Â Bottom ash º¸°­È¿°ú¸¦ È®ÀÎÇÏ¿´´Ù. º¹ÇÕÁö¹ÝÀç·áÀÇ ¾ÐÃà°­µµ´Â ¾ç»ý±â°£ÀÌ Áõ°¡ÇÒ¼ö·Ï Áõ°¡Çϸç, 28ÀÏ °­µµ´Â 7ÀÏ °­µµÀÇ ¾à $1.7{sim}1.8$¹è Áõ°¡ÇÏ´Â °ÍÀ¸·Î ³ªÅ¸³µ´Ù. º¹ÇÕÁö¹ÝÀç·áÀÇ ´ÜÀ§Áß·®Àº ±âÆ÷ÇÔ·®¿¡ Å©°Ô ÀÇÁ¸ÇÏ¿´´Ù. º¹ÇÕÁö¹ÝÀç·áÀÇ º¯Çü°è¼ö($E_{50}$)Àº Bottom ashÀÇ È¥ÇÕÀ¸·Î ÀÎÇØ °­µµ°¡ Áõ°¡ÇÔ¿¡ µû¶ó Áõ°¡µÇ¾ú´Ù.
This paper investigates the mechanical characteristics of composite geo-material which was developed to reuse both dredged soils and bottom ash. The composite geo-material used in this experiment consists of dredged soil taken from the construction site of Busan New Port, cement, air foam and bottom ash. Bottom ash is a by-product generated at the Samcheonpo thermal power plant. Several series of laboratory tests were performed to investigate behavior characteristics of composite gee-material, in particular the reinforcing effect by mixing bottom ash. The experimental results of composite geo-material indicated that the stress-strain relationship and the unconfined compressive strength are strongly influenced by mixing conditions. Especially it was observed that the compressive strength of composite geo-material increased with an increase in bottom ash content due to reinforcing effect by the bottom ash. Compressive strength of composite geo-material increased with the increase in curing time. The 28-day strength of composite geo-material is $1.7{sim}1.8$ times higher than the 7-day strength. The moist unit weight strongly depended on air-foam content as well as bottom ash content added to the composite goo-material. In composite geo-material, secant modulus ($E_{50}$) also increased as its compressive strength increased due to the inclusion of bottom ash.
 
Ű¿öµå
Bottom ash;Composite geo-material;Dredged soil;Recycling;Unconfined compression test;
 
Çѱ¹Áö¹Ý°øÇÐȸ³í¹®Áý / v.23, no.11, 2007³â, pp.77-85
Çѱ¹Áö¹Ý°øÇÐȸ
ISSN : 1229-2427
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO200706414119210)
¾ð¾î : Çѱ¹¾î
³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø
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