³í¹®¸í |
°ÇÃà°ø»ç Ç¥Áؽù漿¡ ÀÇÇÑ ÄÜÅ©¸®Æ® ¹èÇÕ °èȹ½Ã È¥ÇսøàÆ® »ç¿ë ÄÜÅ©¸®Æ®ÀÇ ±â¿Âº¸Á¤°µµ Àû¿ë±â°£ »êÁ¤ / Determination of Strength Correction of Concrete Using Blended Cement at Mix Design Phase According to Korean Architectural Standard Specification / Á¦ 2 ºÐ°ú : ½Ã°ø, Àç·á |
¼ö·Ï»çÇ× |
Àü±¹ ´ëÇлý Çмú¹ßÇ¥´ëȸ ³í¹®Áý (2008-11) |
ÆäÀÌÁö |
½ÃÀÛÆäÀÌÁö(155) ÃÑÆäÀÌÁö(4) |
ÁÖÁ¦¾î |
±â¿Âº¸Á¤°µµ ; °ÇÃà°ø»çÇ¥ÁØ½Ã¹æ¼ ; Çѱ¹ ±â»óû ; ¹èÇÕ°µµ ; Strength correction ; KASS ; Korea meteorological administration ; Target strength |
¿ä¾à1 |
º» ¿¬±¸¿¡¼´Â °ÇÃà°ø»ç Ç¥Áؽùæ¼(KASS)¿¡ ÀÇÇÑ ÄÜÅ©¸®Æ® °ø»ç½Ã ÄÜÅ©¸®Æ®ÀÇ ¹èÇÕ °èȹ¿¡ ÀÖ¾î Àú¿Â¿¡ ÀÇÇÑ °µµ¹ßÇö ÀúÇÏÀÇ ÇÇÇظ¦ ¹æÁöÇϱâÀ§ÇØ ±ÔÁ¤µÈ ´Ü°èº° ±â¿Âº¸Á¤°µµ¸¦ ±â»óûÂ÷·á¸¦ Åä´ë·Î ¿ì¸®³ª¶ó °¢ Áö¿ªº°·Î »êÁ¤ÇÏ¿´°í, ½Ç¹«Á¶°Ç¿¡¼ ±â¿Âº¸Á¤°µµ Àû¿ëÀÇ È°¼ºÈ¿¡ ´ëÇÑ Çʿ伺 ¹× ¹æÇâÀ» Á¦½ÃÇÏ¿´´Ù. ¿¬±¸°á°ú¿¡ µû¸£¸é, ¿ì¸®³ª¶ó °¢ Áö¿ªÀÇ ´Ü°èº° ±â¿Âº¸Á¤°µµÀÇ Àû¿ë±â°£Àº 3¿ù¿¡¼ 6¿ù, 9¿ù¿¡¼ 11¿ù±îÁö·Î ´ë·« 70ÀÏ ÀüÈÄ·Î ³ªÅ¸³µ°í, Áö¿ªº°·Î ÁߺϺΠÁö¿ªÀÇ °æ¿ì´Â Àû¿ë±â°£ÀÌ Âª°í ³²ºÎÁö¿ªÀÇ °æ¿ì°¡ ¿ÀÈ÷·Á ±æ°Ô ³ªÅ¸³µ´Ù. ÀÌ·¯ÇÑ ±â¿Âº¸Á¤°µµ´Â Àú¿Â¿¡ ÀÇÇÑ ±¸Á¶Ã¼ ÄÜÅ©¸®Æ®ÀÇ °µµ¹ßÇö ÀúÇÏ¿¡ ´ëÇÑ È¿°úÀûÀÎ ´ëó¿Í °ÅǪÁý Å»Çü½Ã±â ´ÜÃà¿¡ µû¸¥ °ø±â´ÜÃà È¿°ú¸¦ ±â´ëÇÒ ¼ö ÀÖ¾î ±× Àǹ̰¡ Å©´Ù°í ÇÒ ¼ö ÀÖ°í ƯÈ÷ ¿ì¸®³ª¶ó ±â¿ÂÁ¶°Ç»ó ±â¿Âº¸Á¤°µµ Àû¿ë±â°£ÀÌ 70ÀÏÀüÈÄ°¡ µÇ±â ¶§¹®¿¡ ±¸Á¶¹° ¾ÈÀü»ó ¹Ýµå½Ã Àû¿ëµÇ¾î¾ß Çϸç, À̸¦ À§ÇØ ½Ç¹«Á¶°Ç¿¡¼ ±â¿Âº¸Á¤°µµ´Â ±¸ÀÔÀÚ°¡ ±â¿ÂÁ¶°ÇÀ» °í·ÁÇÏ¿© ÁÖ¹®ÇÏ°í ÀÌ¿¡ ´ëÇÑ ºñ¿ëÀ» ÀûÀýÈ÷ ÁöºÒÇϸç, Áؼö¿©ºÎ¸¦ °Ç¼³»ç¾÷ °ü¸®ÀÚ, °¨¸® ¹× °¨µ¶°üû¿¡¼ ¸é¹ÐÇÏ°Ô °ËÅäÇؾßÇÑ´Ù. |
¿ä¾à2 |
According to Korean Architectural Standard Specification (KASS), at the design stage of the specified concrete strength, strength correction with each temperature level should be considered to secure required strength at 28 days even in low temperature condition, In this paper, the period for the strength correction at the stage of mixture design of the concrete using blended cement specified in KASS was determined with each region of south Korea based on the meteorological data of KMA(Korea meteorological administration) by applying KASS regulation. In case of 28 days of strength control age, the period for strength correction with 6 MPa was calculated to 40¢¦60 days and, with 3 MPa. to around 50¢¦80 days. The period for the strength correction was shown to be decreased with the rise of altitude. Contractor should consider the strength correction for securing the stability against low temperature attack by ordering strength correction under supervision of CMr. |