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ÀܰñÀç Áß 0.08§®ÀÌÇÏ Ç³ÈµÈ Á¡Å伺 ¹Ì¼¼ÀÔÀÚÀÇ Æò°¡¹æ¹ý¿¡ ´ëÇÑ ½ÇÇèÀû ¿¬±¸ / An Experimental Study on the Assessment Method of Weathered Clay Fine Particles of Under 0.08§® Contained in Fine Aggregates |
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ÃÖÇö±Ô(Choi, Hyun-Kyu) ; ÇѹÎö(Han, Min-Cheol) |
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´ëÇѰÇÃàÇÐȸ³í¹®Áý, Vol.39 No.1 (2023-01) |
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½ÃÀÛÆäÀÌÁö(295) ÃÑÆäÀÌÁö(9) |
| ÁÖÁ¦¾î |
¹Ì¼¼ÀÔÀÚ; Á¡Åä; ½ÇÆ®; ¸ÞÆ¿·»ºí·ç; ¿¢½º¼± Çü±¤ ; Fine particles; Clay; Silt; Methylene blue; X-ray fluorescence |
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Ç³ÈµÈ Á¡Å伺 ¹Ì¼¼ÀÔÀÚ°¡ ´Ù·® ÇÔÀ¯µÈ °ñÀ縦 ÄÜÅ©¸®Æ® Àç·á·Î »ç¿ëÇϸé ÄÜÅ©¸®Æ®ÀÇ Ç°Áú¼º´ÉÀÌ ÀúÇϵȴÙ. ±×·³¿¡µµ ºÒ±¸ÇÏ°í ±¹³»¿¡¼´Â Ç³ÈµÈ Á¡Å伺 ¹Ì¼¼ÀÔÀÚ¸¦ Æò°¡ÇÒ ¼ö ÀÖ´Â ¹æ¹ýÀÌ Àü¹«ÇÏ´Ù. µû¶ó¼ º» ¿¬±¸¿¡¼´Â ÄÜÅ©¸®Æ®¿ë ÀܰñÀç¿¡ ÇÔÀ¯µÈ Ç³ÈµÈ Á¡Å伺 ¹Ì¼¼ÀÔÀÚ¸¦ Æò°¡ÇÏ´Â ¹æ¹ýÀ» ¿¬±¸Çϴµ¥ ¸ñÀûÀÌ ÀÖ´Ù. ÀÌ¿¡ ´ëÇÑ Æò°¡¹æ¹ýÀ¸·Î 0.08 §® ü Åë°ú·®¹ýÀ» °ËÁõÇÏ¿´À¸¸ç, ÈÇÐÀû ¹æ¹ýÀ¸·Î °øÀ¯µÇ´Â Æò°¡¹æ¹ý(XRF, methylene blue)¿¡ ´ëÇÑ ÀûÇÕ¼º°ú °¡´É¼ºÀ» È®ÀÎÇÏ¿´´Ù. ¿¬±¸°á°ú 0.08 §® ü Åë°ú·®¹ýÀº ¼ººÐÀ» ¿øÄ¢ÀûÀ¸·Î ºÐ¼®ÇÒ ¼ö ¾ø±â ¶§¹®¿¡ Æò°¡¹æ¹ýÀ¸·Î¼ ´Ù¼Ò Á¦ÇÑÀûÀÌ´Ù. ÇÑÆí, Ç³ÈµÈ Á¡Å伺 ¹Ì¼¼ÀÔÀÚ´Â ¸ÞÆ¿·»ºí·ç¸¦ ÀÌ¿ëÇÑ ÈÇйÝÀÀÀ» »ç¿ëÇÑ ¹æ¹ýÀ̳ª XRF¸¦ ÀÌ¿ëÇÑ ¼ººÐÀ» ºÐ¼®ÇÏ´Â ¹æ¹ýÀ¸·Î Æò°¡°¡ °¡´ÉÇÑ °ÍÀ¸·Î ºÐ¼®µÇ¾ú´Ù. ¶ÇÇÑ, XRF¹ýÀº ¼ººÐÀ» Á¤·®ÀûÀ¸·Î ºÐ¼®ÇÒ ¼ö Àֱ⠶§¹®¿¡ ÃøÁ¤ ÆíÂ÷¸¦ ÃÖ¼ÒÈÇÒ ¼ö ÀÖ¾î È¿°úÀûÀÎ Æò°¡°¡ °¡´ÉÇÒ °ÍÀ¸·Î ÆÇ´ÜµÈ´Ù. |
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If aggregate containing a large amount of weathered clay fine particles was used as material for concrete, the quality performance of the concrete would deteriorate. Nevertheless, there is no method for assessing weathered clay fine particles in Korea. Therefore, the purpose of this study is to examine a method for assessing weathered clay fine particles contained in fine aggregate for concrete. As an assessment method, the 0.08 mm sieve passing amount method was verified, and the suitability and possibility for the assessment method of X-ray fluorescence (XRF) and methylene blue shared as a chemical method was confirmed. As a result, the 0.08 mm sieve passing amount method was somewhat limited because it couldn¡¯t analyze these components in principle. On the other hand, it was possible to assess the weathered clay fine particles by a chemical reaction method using methylene blue or a method of analyzing components using XRF. In addition, since the XRF method can quantitatively analyze these components, it is considered that the measurement deviation can be minimized and effective assessment is possible. |