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Çѱ¹°ÇÃà½Ã°øÇÐȸ / v.9, no.4, 2009³â, pp.139-145
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ºÐ¸»µµ º¯È¸¦ °í·ÁÇÑ ¹ÌºÐ½Ã¸àÆ® »ç¿ë ÄÜÅ©¸®Æ®ÀÇ ¾ÐÃà°µµÁõÁø ÇØ¼®
( Estimation of Compressive Strength of Concrete Incorporating Fine Particle Cement Considering Blaine Fineness ) |
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| º» ¿¬±¸¿¡¼´Â ÀÔµµºÐ±Þ¿¡ ÀÇÇÑ ¹ÌºÐ½Ã¸àÆ®(FC)¸¦ »ç¿ëÇÑ ÄÜÅ©¸®Æ®ÀÇ °µµ ¹ßÇöÇØ¼®¿¡ ÀÖ¾î FC ġȯ·ü Áõ°¡¿¡ µû¸¥ ºÐ¸»µµ º¯µ¿ÀÌ ÄÜÅ©¸®Æ®ÀÇ °µµ¹ßÇö¿¡ ¹ÌÄ¡´Â ¿µÇâÀ» ºÐ¼®Çϱâ À§ÇÏ¿© ±âÁ¸ µî°¡Àç·É¹æ¹ý¿¡ ºÐ¸»µµÀÇ ¿µÇâÀ» °í·ÁÇÒ ¼ö ÀÖ´Â °Ñº¸±â Ȱ¼ºÈ ¿¡³ÊÁö ¸ðµ¨À» ÀÌ¿ëÇÏ´Â ¹æ¹ýÀ¸·Î FC ġȯ ÄÜÅ©¸®Æ®ÀÇ °µµ¹ßÇöÇØ¼®À» ½Ç½ÃÇϰíÀÚ ÇÑ´Ù. ¿¬±¸°á°ú¿¡ µû¸£¸é FC ġȯ·ü º¯È¿¡ µû¸¥ ½Ã¸àÆ®ÀÇ ºÐ¸»µµ Áõ°¡¸¦ ¼öȹÝÀÀ¼Óµµ¿¡ ¹Ý¿µÇÑ °Ñº¸±â Ȱ¼ºÈ ¿¡³ÊÁö(Ea)½ÄÀ» ÀÌ¿ëÇÏ¿© °µµ¹ßÇö ÇØ¼®À» ¼öÇàÇÑ °á°ú ¿¹»ó°ú ´Ù¸£°Ô FC ġȯ·üÀÌ Áõ°¡ÇÔ¿¡ µû¶ó »ó´çºÎºÐ Á¤È®µµ°¡ ÀúÇÏÇÏ´Â °ÍÀ¸·Î ³ªÅ¸³µ°í, ±âÁ¸ÀÇ ÀÀ°á½Ã°£¿¡ ÀÇÇÑ ¹æ¹ýº¸´Ùµµ ¿ª½Ã Á¤È®µµ°¡ ÀúÇÏÇÔÀ» ¾Ë ¼ö ÀÖ¾ú´Ù. ±ÝÈÄÀÇ °úÁ¦·Î¼ ºÐ¸»µµÀÇ ¿µÇâÀ» º¸´Ù ÇÕ¸®ÀûÀ¸·Î °í·ÁÇÒ ¼ö ÀÖ´Â Ea »êÁ¤¸ðµ¨ÀÇ °³¹ßÀ» ÅëÇØ FC ġȯ·ü¿¡ µû¸¥ ÄÜÅ©¸®Æ®ÀÇ Á¤È®ÇÑ °µµ¹ßÇö ÇØ¼®À» ¼öÇàÇÒ Çʿ䰡 ÀÖÀ» °ÍÀ¸·Î »ç·áµÈ´Ù. |
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| This study presents an estimation of the strength development of concrete considering the equivalent age using fine particle cement (FC), which is manufactured according to the classification process. Contents and W/B were considered as experimental parameters. The strength considering the equivalent age is gradually increased, and the deviation of the strength according to W/C is increased with decrease of W/C in accordance with the replacement of the fine particle cement. For estimating the apparent activation energy (Ea) considering setting time and blame fineness of cement, Ea of the FC based on setting time is calculated with $27.6{sim}28.9$ KJ/mol, which is somewhat similar to that of OPC, while by applying Ea based on blame fineness, Ea is increased with increase of FC contents, and is calculated with $40{sim}56$ KJ/mol. Good agreement is obtained by applying Ea based on setting time, while there was remarkable variation between calculated value and measured value when Ea based on blame fineness. Therefore, it is necessary to add influencing factors in existing Ea to enhance the accuracy of the estimation. |
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| °í¿ÂÁ¶°Ç;Àû»ê¿Âµµ;°µµÁõÁø;¹ÌºÐ½Ã¸àÆ®;µî°¡Àç·É;ºÐ¸»µµ;High temperature;Maturity;Strength development;Fine particle cement;Equivalent age;Blame fineness; |
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Çѱ¹°ÇÃà½Ã°øÇÐȸÁö / v.9, no.4, 2009³â, pp.139-145
Çѱ¹°ÇÃà½Ã°øÇÐȸ
ISSN : 1598-2033
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO200931559903481)
¾ð¾î : Çѱ¹¾î |
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| ³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø |
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