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³í¹®¸í °æ·® ±âÆ÷ ÄÜÅ©¸®Æ®ÀÇ ·¹¿Ã·ÎÁö Ư¼ºÀÌ ¼ÒÆ÷¾ïÁ¦¿¡ ¹ÌÄ¡´Â ¿µÇâ / Influence of Rheological Properties of Lightweight Foamed Concrete on Preventing Foam Collapse
ÀúÀÚ¸í ÀÌÇâ¼±(Hyang-Sun Lee)½Äº°ÀúÀÚ ; ÀüÁ¾¿î(Jong-Woon Jeon) ; Á¶¹«Áø(Mujin Jo) ; ±â¼ºÈÆ(Seong-Hoon Kee) ; Çѵ¿¿±(Dongyeop Han)
¹ßÇà»ç Çѱ¹°Ç¼³¼øÈ¯ÀÚ¿øÇÐȸ
¼ö·Ï»çÇ× Çѱ¹°Ç¼³¼øÈ¯ÀÚ¿øÇÐȸ ³í¹®Áý, Vol.6 No.4 (2018-12)
ÆäÀÌÁö ½ÃÀÛÆäÀÌÁö(304) ÃÑÆäÀÌÁö(7)
ISSN 2288-3320
ÁÖÁ¦ºÐ·ù Àç·á
ÁÖÁ¦¾î °æ·® ±âÆ÷ ÄÜÅ©¸®Æ® ; ±âÆ÷ ¾ÈÁ¤È­ ; ħÇÏ ; ·¹¿Ã·ÎÁö Ư¼º ; ¼Ò¼ºÁ¡µµ ; Lightweigth foamed concrete ; Foam stability ; Settlement ; Rheological properties ; Plastic viscosity
¿ä¾à1 º» ¿¬±¸¿¡¼­´Â °æ·® ±âÆ÷ ÄÜÅ©¸®Æ®ÀÇ ºÎÇÇ ¾ÈÁ¤¼ºÀ» È®º¸Çϱâ À§ÇØ ¼ÒÆ÷¸¦ Àú°¨½Ãų ¼ö ÀÖ´Â ¿ä¼ÒµéÀ» ·¹¿Ã·ÎÁö Ư¼ºÀ» ¿¬°èÇÏ¿© ºÐ¼®ÇÏ¿´´Ù. ½ÇÇè°èȹÀ¸·Î´Â ºñºö½Ã°£, ¹°-°áÇÕÀçºñ, ÁõÁ¡Á¦, ±âÆ÷Á¦, ÆóÁö ÷°¡·®¿¡ ´ëÇÑ º¯È­·Î °¢ ¿äÀÎÀ» ÅëÇØ ½ÇÇèÇÏ¿´´Ù. ¸ÕÀú °úµµÇÑ ºñºö°ú ±âÆ÷Á¦ÀÇ Ã·°¡·®¿¡ ÀÇÇØ ¹ß»ýÇÑ ´Ù·®Àº ±âÆ÷´Â ½½·¯¸® ³»¿¡¼­ ºÒ¾ÈÁ¤ÇÑ »óÅ·ΠÁ¸ÀçÇÏ¿© ħÇϸ¦ ¹ß»ý½ÃŲ´Ù. ƯÈ÷ ±âÆ÷Á¦ÀÇ °æ¿ì °è¸éȰ¼ºÁ¦·Î½á ¹°¿¡ ¿µÇâÀ» ¹ÌÄ¡¹Ç·Î ¹èÇÕ °èȹ ½Ã ¹°¿¡ ´ëÇÑ Áú·®ºñ·Î °èÈ¹ÇØ¾ßÇÒ °ÍÀ¸·Î ÆÇ´ÜµÈ´Ù. ¶ÇÇÑ ·¹¿Ã·ÎÁö Ư¼ºÀ» ÅëÇØ °æ·® ±âÆ÷ ÄÜÅ©¸®Æ®ÀÇ ¼Ò¼ºÁ¡µµ¿Í ¼ÒÆ÷·®ÀÌ ¹Ýºñ·Ê°ü°è¸¦ °¡Áø °ÍÀ» È®ÀÎÇÒ ¼ö ÀÖ¾ú´Ù. µû¶ó¼­ º» ¿¬±¸ÀÇ °á°ú´Â °æ·® ±âÆ÷ ÄÜÅ©¸®Æ®ÀÇ ¼ÒÆ÷¸¦ Àú°¨½Ãų ¼ö ÀÖ´Â ¿ä¼ÒµéÀ» ºÐ¼®ÇÔÀ¸·Î½á °æ·® ±âÆ÷ ÄÜÅ©¸®Æ®ÀÇ ¹èÇÕ Á¶°Ç¿¡ ´ëÇÑ ±âÃÊÀûÀÎ ÀڷḦ Á¦°øµÉ °ÍÀ¸·Î ÆÇ´ÜµÈ´Ù.
¿ä¾à2 The aim of the research is to provide possibility of quality controlling by rheological properties for lightweight foamed concrete. The lightweight foamed concrete achieves its low density by containing air bubbles (foam) produced during the mixing process. Therefore, containing foamed volume during setting period is critical for the securing the performance as an insulating material. In this research, regarding foam collapse during the setting period, rheolgocial properties of fresh state lightweight foamed concrete were assessed to get its relationship with volume stability, or foam stability. For the experiment regarding foaming factors including mixing time, mix design of contents for materials, rheological properties of fresh state lightweight foamed concrete were tested with its density and settling depth. Based on the settling depth with various factors, relationship with rheological properties was analyzed, and especially, close relationship of plastic viscosity and settling depth was found. Therefore, from the results of this research, it is considered to contribute on suggesting a new approach of quality controlling for lightweight foamed concrete using rheological test method.
¼ÒÀåó Çѱ¹°Ç¼³¼øÈ¯ÀÚ¿øÇÐȸ
¾ð¾î Çѱ¹¾î
DOI https://doi.org/10.14190/JRCR.2018.6.4.304
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