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³í¹®¸í ¿ø·á ¹èÇÕ¿¡ µû¸¥ Ä®½· ½Ç¸®ÄÉÀÌÆ® ½Ã¸àÆ® Ŭ¸µÄ¿ÀÇ ¼ººÐ ¹× »ó ºÐ¼® / Component and Phase Analysis of Calcium Silicate Cement Clinker by Raw Materials Mix Design
ÀúÀÚ¸í ÀÌÇâ¼±(Lee, Hyang-Sun)½Äº°ÀúÀÚ ; ¼ÛÈÆ(Song, Hun)½Äº°ÀúÀÚ
¹ßÇà»ç Çѱ¹°ÇÃà½Ã°øÇÐȸ
¼ö·Ï»çÇ× Çѱ¹°ÇÃà½Ã°øÇÐȸ ³í¹®Áý, Vol.22 No.3 (2022-06)
ÆäÀÌÁö ½ÃÀÛÆäÀÌÁö(251) ÃÑÆäÀÌÁö(8)
ISSN 15982033
ÁÖÁ¦ºÐ·ù ½Ã°ø(Àû»ê)
ÁÖÁ¦¾î Ä®½· ½Ç¸®ÄÉÀÌÆ® ½Ã¸àÆ®; ±¤¹° ź»êÈ­; ¼ººÐ ºÐ¼®; »ó ºÐ¼® ; calcium silicate cement; mineral carbonation; component analysis; phase analysis
¿ä¾à1 ½Ã¸àÆ®»ê¾÷¿¡¼­´Â CO2 ¹èÃâ·® °¨ÃàÀ» À§ÇØ ¿ø·á´ëü ¹× Àüȯ±â¼ú, Àúź¼Ò ½Å¿­¿ø Ȱ¿ë °øÁ¤È¿À² Çâ»ó±â¼ú, °øÁ¤¹ß»ýCO2 Æ÷Áý ¹× ÀçÀÚ¿øÈ­ ±â¼ú °³¹ßÀÌ ÁøÇàµÇ°í ÀÖ´Ù. °øÁ¤¹ß»ý CO2 Æ÷Áý ¹× ÀçÀÚ¿øÈ­´Â ´ë±Ô¸ð·Î ¹èÃâµÇ´Â ¹è±â°¡½º¿¡¼­ CO2¸¦ ºÐ¸® ¹× Æ÷ÁýÇÏ´Â ±â¼ú·Î ÁöÁßÀúÀå°ú ÇØ¾çÀúÀå, ź»ê¿° ±¤¹°È­·Î Å©°Ô ¼¼ °¡Áö·Î ³ª´¶´Ù. ÀÌ¿¡ º» ¿¬±¸¿¡¼­´Â CO2¸¦ ź»ê¿°±¤¹°·Î ÀúÀåÇÒ ¼ö ÀÖ´Â CSC¸¦ °³¹ßÇϰíÀÚ ±âÃÊ ½ÇÇèÀ» ÁøÇàÇÏ¿´´Ù. Ŭ¸µÄ¿ ¿ø·á ¹èÇÕ¿¡¼­ SiO2/(CaO+SiO2) ¸ôºñ°¡ ´Ù¸¥¼¼ °¡ÁöÀÇ CSC Ŭ¸µÄ¿¸¦ Á¦ÀÛÇÏ¿© Ŭ¸µÄ¿ÀÇ ¼ººÐ ¹× »ó ºÐ¼®À» ÁøÇàÇÏ¿´´Ù. Á¦Á¶ÇÑ CSC Ŭ¸µÄ¿´Â Wollastonite¿Í Rankinite°¡ »ý¼ºµÇ¾ú´Ù. ¶ÇÇÑ, CSC ÆäÀ̽ºÆ® ź»êÈ­ ½ÃÇèÆíÀº ź»êÈ­ »ý¼º¹°·Î Calcite°¡ »ý¼ºµÇ¾úÀ½À» È®ÀÎÇÒ ¼ö ÀÖ¾ú´Ù. CSC Ŭ¸µÄ¿¿Í CSC ź»êÈ­ ½ÃÇèÆíÀº CSC Ŭ¸µÄ¿ È­ÇÐÁ¶¼º¿¡¼­ SiO2/(CaO+SiO2) ¸ôºñ°¡ ³·À»¼ö·Ï Wollastonite »ý¼º·®ÀÌ °¨¼ÒÇϰíRankiniteÀÇ »ý¼º·®ÀÌ Áõ°¡ÇÏ¿´°í, CSC ÆäÀ̽ºÆ® ½ÃÇèÆíÀÇ Åº»êÈ­ ÁøÇà¿¡ µû¶ó Calcite »ý¼º·®ÀÌ Áõ°¡ÇÏ¿´´Ù. ÀÌ´ÂRankinite°¡ Wollastoniteº¸´Ù CO2¸¦ ±¤¹°È­Çϴµ¥ ¹ÝÀÀ¼ºÀÌ ³ôÀº °ÍÀ¸·Î ÆÇ´ÜµÈ´Ù.
¿ä¾à2 In the cement industry, in order to reduce CO2 emissions, technology for raw materials substitution andconversion, technology for improving process efficiency of utilizing low-carbon new heat sources, andtechnology for collecting and recycling process-generated CO2 are being developed. In this study, weconducted a basic experiment to contribute to the development of CSC that can store CO2 as carbonateminerals among process-generated CO2 capture and recycling technologies. Three types of CSC clinkerwith different SiO2/(CaO+SiO2) molar ratios were prepared with the clinker raw material formulation,and the characteristics of the clinker were analyzed. As a result of analysis and observation of CSCclinker, wollastonite and rankinite were formed. In addition, as a result of the carbonation test of theCSC paste, it was confirmed that calcite was produced as a carbonation product. The lower theSiO2/(CaO+SiO2) molar ratio in the CSC clinker chemical composition, the lower the wollastoniteproduction amount, and the higher the rankinite production amount. And the amount of calciteproduction increased with the progress of carbonation of the CSC paste specimen. It is judged thatrankinite is more reactive in mineralizing CO2 than wollastonite.
¼ÒÀåó Çѱ¹°ÇÃà½Ã°øÇÐȸ
¾ð¾î Çѱ¹¾î
DOI https://doi.org/10.5345/JKIBC.2022.2.3.251
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