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Çѱ¹Áö¹Ý°øÇÐȸ / v.18, no.5, 2002³â, pp.19-25
Rice husk ash¸¦ ÀÌ¿ëÇÑ ÅäÁú¾ÈÁ¤Ã³¸®
( Soil Stabilization with time and Rice Husk Ash )
¹Î´ö±â;Ȳ±¤¸ð;±èÇöµµ;ȲÅÃÁø; ¿ï»ê´ëÇб³ °ø°ú´ëÇÐ Áö±¸È¯°æ½Ã½ºÅÛ°øÇкÎ;°æºÏÀü¹®´ëÇÐ °Ç¼³È¯°æ°ú;¿ï»ê´ëÇб³ ´ëÇпø Áö±¸È¯°æ½Ã½ºÅÛ°øÇкÎ;ºÎ»ê±¤¿ª½Ã µµ½Ã°èȹ±¹;
 
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»ý¼®È¸ È¥ÇÕ󸮿¡ ÀÇÇÑ Áö¹Ý°³·®Àº ÅäÁß¼öÀÇ Èí¼ö, ÆØÃ¢ ±×¸®°í Áö¹ÝÀ» ±¸¼ºÇϰí ÀÖ´Â ±¤¹°µé°úÀÇ È­ÇÐÀû ¹ÝÀÀµé¿¡ ÀÇÇØ ÀÌ·ç¾îÁö¸ç, Èë ¼Ó¿¡ ÇÔÀ¯µÈ ½Ç¸®Ä«(SiO2)¿Í ¾Ë·ç¹Ì³ª($Al_2O_3$)ÀÇ ÇÔÀ¯·®ÀÌ È¥ÇÕÅäÀÇ °­µµ°³¼±¿¡ Å©°Ô ¿µÇâÀ» ¹ÌÄ£´Ù. µû¶ó¼­, º» ¿¬±¸¿¡¼­´Â ½Ç¸®Ä«¸¦ ÁÖ ±¸¼º¼ººÐÀ¸·Î ÇÏ´Â rice husk ash(RHA, $SiO_2$=91.65%, ¿Õ°ÜÀç)¸¦ »ý¼®È¸¿Í ÇÔ²² ÷°¡ÇÏ¿© ¿¬¾àÅ並 °³·®ÇϰíÀÚ ÇÏ¿´´Ù. RHA°¡ ÷°¡µÈ È¥ÇÕÅä¿¡ ´ëÇÑ °¢Á¾ ½ÇÇè°á°ú, »ý¼®È¸¿¡ ÀÇÇÑ °­µµ¹ßÇöÀ» ´õ¿í ÃËÁø½Ã۰í, ¾ÐÃàÆ¯¼º ¹× ÆØÃ¢Æ¯¼ºÀÌ °¨¼ÒµÇ´Â °ÍÀ¸·Î ³ªÅ¸³µ´Ù. ´ë»óÅä¿¡¼­ À¯±â¹°À» Á¦°ÅÇÑ ÈÄ »ý¼®È¸¿Í RHA¸¦ ÷°¡ÇÑ °æ¿ì, À¯±â¹° ÇÔÀ¯À²ÀÌ ÀûÀ»¼ö·Ï È¥ÇÕÅäÀÇ °­µµ°¡ ÁõÁøµÇ´Â °ÍÀ¸·Î ³ªÅ¸³µ´Ù. µû¶ó¼­, Áö¹Ý °³·®À» À§ÇÑ Ã·°¡Àç·Î½á »ý¼®È¸¸¸ »ç¿ëÇÏ´Â °æ¿ìº¸´Ù 2Â÷ ÷°¡ÀçÀÎ RHA¸¦ ÷°¡ÇÏ´Â °ÍÀÌ °­µµ°³¼± ¹× ¾ÐÃàÆ¯¼º °³¼±¿¡ À¯È¿ÇÔÀ» È®ÀÎÇÒ ¼ö ÀÖ¾ú´Ù.
In this paper, a laboratory investigation was carried out to change the geotechnical properties of clayey soil with quicklime and rice husk ash for surplus soil strength improvement. The organic content of soils is 8.67%, 6.45% and 3.84% respectively. The geotechnical properties of treated soil were evaluated by a series of laboratory unconfined compression test, consolidation test and etc. The test results indicated that the presence of RHA enhanced the efficiency of lime stabilization. Especially, the increase in strength is very high at the first stage, while the significant improvement occurs in a sample C with organic content of 3.84%. These results can be identified by X-ray diffraction(XRD) and scanning electron microscope(SEM). The results of consolidation test indicate that the presence of RHA with lime reduces the properties of swelling of soil. Thus, it was verified that the addition of RHA is more effective than using only lime for soil stabilization.
 
Ű¿öµå
Organic content;Rice husk ash;Strength;Surplus soil;Quick lime;
 
Çѱ¹Áö¹Ý°øÇÐȸ³í¹®Áý / v.18, no.5, 2002³â, pp.19-25
Çѱ¹Áö¹Ý°øÇÐȸ
ISSN : 1229-2427
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO200211921407688)
¾ð¾î : Çѱ¹¾î
³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø
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