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Çѱ¹µµ·ÎÇÐȸ / v.12, no.2, 2010³â, pp.115-121
ÀÔµµÁ¶Á¤±âÃþ Àç·áÀÇ °øÇÐÀû Ư¼º Æò°¡ ¹× °æÇèÀû »ó°ü¸ðÇü °³¹ß
( Evaluation of Engineering Characteristics of Aggregate Base Materials and Developing the Empirical Correlation Model )
±Ç±âö;À̽ÂÁØ;ÀÌ¿õ¼¼; µ¿ÀÇ´ëÇб³ Åä¸ñ°øÇаú;(ÁÖ)»ï¿µ±â¼ú;(ÁÖ)¼­¿µ¿£Áö´Ï¾î¸µ;
 
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ÀÔµµÁ¶Á¤±âÃþ Àç·áÀÇ ¿ªÇÐÀû Ư¼ºÆò°¡¸¦ À§ÇÏ¿© 15°³ ½Ã·á¿¡ ´ëÇØ ¹Ýº¹ÀçÇÏ »ïÃà¾ÐÃà½ÃÇè, CBR ½ÃÇè, Åõ¼ö°è¼ö½ÃÇèÀ» ¼öÇàÇÏ¿´´Ù. ÀÔµµÁ¶Á¤±âÃþ Àç·áÀÇ CBR °ªÀº 32~110 ¹üÀ§(Æò±Õ 81)¿¡¼­ ¸Å¿ì Æø³Ð°Ô °áÁ¤µÇ¾úÀ¸¸ç, ¼öħÁ¶°Ç¿¡¼­ ÆØÃ¢·®Àº 0.04mm ÀÌÇÏ·Î ³ªÅ¸³µ´Ù. ÀÔµµÁ¶Á¤±âÃþ Àç·áÀÇ Åº¼º°è¼ö´Â üÀûÀÀ·ÂÀÇ ¿µÇâÀ» ¸Å¿ì Å©°Ô ¹Þ¾ÒÀ¸¸ç ¼±ÇüüÀûÀÀ·Â¸ðµ¨ÀÇ Àû¿ë¼ºÀÌ °¡Àå ¶Ù¾î³²À» È®ÀÎÇÏ¿´´Ù. ÀÔµµÁ¶Á¤±âÃþ Àç·áÀÇ Åº¼º°è¼ö´Â 100MPa~600MPa, ¸ðµ¨°è¼ö $k_1$Àº 80~270, ¸ðµ¨°è¼ö $k_2$´Â 0.1~0.6 »çÀÌ¿¡¼­ °áÁ¤ µÇ¾ú´Ù. ü°¡¸§½ÃÇè°ú ´ÙÁü½ÃÇè¿¡¼­ °áÁ¤µÈ Áö¼ö¹°¼ºÄ¡·ÎºÎÅÍ ÀÔµµÁ¶Á¤±âÃþ Àç·áÀÇ Åº¼º°è¼ö¸¦ °áÁ¤ÇÏ´Â °æÇè¸ðÇüÀ» Á¦¾ÈÇÏ¿´´Ù. Á¦¾ÈµÈ °æÇè¸ðÇüÀÇ °áÁ¤°è¼ö´Â ¸ðµ¨°è¼ö $k_1$ °áÁ¤¿¡ À־´Â 0.423, ¸ðµ¨°è¼ö $k_2$ °áÁ¤¿¡ À־´Â 0.920, ÀÀ·Â´Ü°èº° ź¼º°è¼ö °áÁ¤¿¡ À־´Â 0.872·Î Æò°¡µÇ¾ú´Ù.
To evaluate the engineering characteristics of aggregate base materials, cyclic triaxial, CBR and permeability tests were performed for 15 samples. The CBR values of aggregate base materials have wide range from 32 to 110(average 81) and the amount of swelling in submerged conditions has below 0.04mm. The Modulus of aggregate base materials were significantly affected by volumetric stress, linear volumetric model was best for fitting. The modulus of aggregate base materials were determined within range of 100MPa~600MPa, 80~270 and 0.1~0.6 for model coefficient $k_1$ and $k_2$ respectively. The empirical correlation model was suggested that prediction the modulus from the basic properties obtained from particle size distribution test and compaction test. The coefficient of determination of the proposed correlation model was 0.423 for model coefficient $k_1$, 0.920 for model coefficient $k_2$ and 0.872 for modulus with stress level.
 
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ÀÔµµÁ¶Á¤±âÃþ;¼â¼®°ñÀç;ź¼º°è¼ö;»ó°ü¸ðÇü;º¯ÇüƯ¼º;aggregate base;crushed aggregate;modulus;correlation model;deformational characteristics;
 
Çѱ¹µµ·ÎÇÐȸ³í¹®Áý / v.12, no.2, 2010³â, pp.115-121
Çѱ¹µµ·ÎÇÐȸ
ISSN : 1738-7159
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO201023064629324)
¾ð¾î : Çѱ¹¾î
³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø
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