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Çѱ¹°ÇÃà½Ã°øÇÐȸ / v.10, no.4, 2010³â, pp.11-20
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Á¶ºÐ(ðØÝÏ) ½Ã¸àÆ®¿Í ÇöóÀֽ̾ø¦ º¹ÇÕ Ä¡È¯ÇÑ ¸ÅÆ® ±âÃÊ ¸Å½ºÄÜÅ©¸®Æ®ÀÇ ÇöÀåÀû¿ë
( Field Application on Mass Concrete of Combined Coarse Particle Cement and Fly-Ash in Mat Foundation ) |
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| ¸Å½ºÄÜÅ©¸®Æ®¸¦ ½Ã°øÇÔ¿¡ ÀÖ¾î ¼öÈ¿Àº ±Õ¿¿¡ Á÷Á¢ÀûÀ¸·Î ¿µÇâÀ» ¹ÌÄ¡´Â Áß¿äÇÑ ¿äÀÎÀÌ´Ù. ±×·¯³ª, ¿ì¸®³ª¶óÀÇ °æ¿ì ÀÌ¿Í °°Àº Àú¹ß¿Çü ½Ã¸àÆ®¸¦ ÀÌ¿ëÇÏ´Â ¹æ¹ýÀº °ÅÀÇ Ã¤ÅõÇÁö ¾Ê°í, °ª½Ñ ÇöóÀֽ̾óª °í·Î½½·¡±×¹ÌºÐ¸» µîÀÇ È¥ÈÀ縸À» ġȯÇÏ¿© ¼öÈ¿À» ÁÙÀ̰í ÀÖ´Â ½ÇÁ¤ÀÌ´Ù. ±×·±µ¥, ÀÌ·¸°Ô È¥ÈÀ縸À» ´Ù·® ġȯÇÏ°Ô µÇ¸é ³»±¸¼º ǰÁú¿¡ ¾Ç¿µÇâÀ» ¹ÌÃÄ ±¸Á¶¹°ÀÇ ¼º´ÉÀ» ÀúÇØÇÏ´Â ¿ä¼Ò·Î ÀÛ¿ëÇÒ ¼ö ÀÖÀ¸¹Ç·Î Á¶ºÐ(ðØÝÏ)½Ã¸àÆ®(CC)¸¦ »ç¿ëÇÏ¸é¼ È¥ÈÀ縦 º¹ÇÕ Ä¡È¯ÇÔÀ¸·Î¼ ¼º´ÉÀúÇϸ¦ ÃÖ¼ÒÈ Çϸç, ¼öÈ¿À» ÁÙÀÏ ¼ö ÀÖ´Â »õ·Î¿î °ø¹ýÀÇ °³¹ßÀÌ °¡´ÉÇÒ ¼ö ÀÖÀ» °ÍÀ¸·Î ÃßÃøµÈ´Ù. ÀÌ¿¡ º» ¿¬±¸¿¡¼´Â OPC¿¡ CC¿Í ÇÔ²² FA¸¦ º¹ÇÕ Ä¡È¯ÇÏ¿© ºÐ¸»µµ¸¦ ¾à $3,000;{pm};200;cm^2/g$À¸·Î Á¶Á¤ÇÑ ½Ã¸àÆ®¸¦ ½Ç¿ëÈ ÇÒ ¸ñÀûÀ¸·Î Mock-up test¸¦ ÁøÇàÇÑ ÈÄ À̸¦ ½Ç¹«ÇöÀå¿¡ Àû¿ëÇϵµ·Ï ÇÑ´Ù. |
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| This study carried out a Mock-up test to apply Low-heat Cement (CF) that is adjusted to a fineness of $3,000;{pm};200;cm^2/g$ by substituting Coarse particle Cement (CC) and fly ash with ordinary Portland Cement (OPC), then applied it on-site. The result of the test is as follows. The Mock-up test showed that the amount of admixture in CF increased SP agent and AE agent slightly more compared to OPC, while temperature history showed that the highest temperature of CF was around $6{sim}10^{circ}C$ lower than that of OPC. Compressive strength in CF was low compared to that of OPC, but the strength width became narrow at the age of 28 days, which is not considered to be significant. In on-site application, slump, air content and chloride content all satisfied the target values, while the temperature history showed that the highest temperature in the center by each cast was about $34^{circ}C$ in the first cast, $42^{circ}C$ in the second cast, and $39^{circ}C$ in the third cast. Compressive strength of specimen for strut management showed low value compared to standard curing, but its strength was reduced at the age of 28 days. |
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| ¸Å½º ÄÜÅ©¸®Æ®;Á¶ºÐ(ðÕÝÏ)½Ã¸àÆ®;ÇöóÀֽ̾Ã;´Ü¿¿Âµµ»ó½Â·®;Àú¹ß¿ ½Ã¸àÆ®;Mass concrete;Coarse particle cement;Fly ash;Adiabatic temperature rise;Low heat cement; |
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Çѱ¹°ÇÃà½Ã°øÇÐȸÁö / v.10, no.4, 2010³â, pp.11-20
Çѱ¹°ÇÃà½Ã°øÇÐȸ
ISSN : 1598-2033
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO201026039608703)
¾ð¾î : Çѱ¹¾î |
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| ³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø |
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