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±â»ç¸í ȥȭÀç·á¿¡ µû¸¥ Áö¿ÀÆú¸®¸ÓÀÇ °­µµ ¹× °ÇÁ¶¼öÃà / Strength and Shrinkage of Geopolymer Mortar with Mineral Admixtures
ÀúÀÚ¸í ¾çÁÖ°æ ; ±èÈ¿Á¤
¹ßÇà»ç Çѱ¹±¸Á¶¹°Áø´ÜÇÐȸ
¼ö·Ï»çÇ× Çѱ¹±¸Á¶¹°Áø´ÜÀ¯Áö°ü¸®°øÇÐȸ ³í¹®Áý , Vol.23 No.1(2019-01)
ÆäÀÌÁö ½ÃÀÛÆäÀÌÁö(45) ÃÑÆäÀÌÁö(9)
ISSN 2234-6937
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ÁÖÁ¦¾î Áö¿ÀÆú¸®¸Ó ; ¾ÐÃà°­µµ ; ÈÚ°­µµ ; °ÇÁ¶¼öÃà ; Geopolymer ; Compressive strength ; Flexural strength ; Shrinkage
¿ä¾à1 º» ¿¬±¸¿¡¼­´Â Áö¿ÀÆú¸®¸Ó °áÇÕÀçÀÎ °í·Î½½·¡±×¸¦ ºÐ¼âÇÒ ¶§ ¼®°íÀÇ È¥ÀÔ ¿©ºÎ, °í·Î½½·¡±×¿Í ÇöóÀֽ̾ÃÀÇ È¥ÇÕºñÀ²°ú ¼öÃàÀú°¨Á¦ ÷°¡ ¿©ºÎ¸¦ º¯¼ö·Î ÇÏ¿© ½ÇÇèÇÏ¿´´Ù. ½ÇÇè¿¡¼­´Â ½½·³ÇÁÇ÷ο츦 ÃøÁ¤ÇÏ¿© ÀÛ¾÷¼ºÀ» ÆÄ¾ÇÇÏ¿´À¸¸ç, ¾ÐÃà°­µµ¿Í ÈÚ°­µµ ¹× °ÇÁ¶¼öÃàÀ» ÃøÁ¤ÇÏ¿© ¿ªÇÐÀû ¼º´ÉÀ» ÆÄ¾ÇÇÏ¿´´Ù. ¼®°í¸¦ È¥ÀÔÇÑ °í·Î½½·¡±×´Â È¥ÀÔÇÏÁö ¾ÊÀº °í·Î½½·¡±×¿¡ ºñÇØ ½½·³ÇÁÇ÷ο찡 Ä¿Áö´Â °æÇâÀ» º¸¿´À¸¸ç, °í·Î½½·¡±×¿Í ÇöóÀֽ̾ÃÀÇ È¥ÇÕºñÀ²ÀÌ 5:5ÀÎ °æ¿ì°¡ È¥ÇÕºñÀ²ÀÌ 8:2ÀÎ °æ¿ìº¸´Ù ½½·³ÇÁÇ÷ο찡 Ä¿Áö´Â °æÇâÀ» º¸¿© ¼®°í¿Í ÇöóÀֽ̾ð¡ Áö¿ÀÆú¸®¸ÓÀÇ ÀÛ¾÷¼ºÀ» ³ô¿©ÁÖ´Â °ÍÀ¸·Î ³ªÅ¸³µ´Ù. ¼®°í¸¦ È¥ÀÔÇÏÁö ¾ÊÀº °í·Î½½·¡±×¸¦ »ç¿ëÇÑ Áö¿ÀÆú¸®¸Ó´Â ¼®°í¸¦ È¥ÀÔÇÑ °í·Î½½·¡±×¸¦ »ç¿ëÇÑ °æ¿ìº¸´Ù ¾ÐÃà°­µµ¿Í ÈÚ°­µµ°¡ ¸ðµÎ Å©°Ô ³ªÅ¸³µÀ¸¸ç, °í·Î½½·¡±×¿Í ÇöóÀֽ̾ÃÀÇ È¥ÇÕºñÀ²ÀÌ 8:2ÀÎ °æ¿ì°¡ È¥ÇÕºñÀ²ÀÌ 5:5ÀÎ °æ¿ìº¸´Ù ¾ÐÃà°­µµ¿Í ÈÚ°­µµ°¡ Ä¿Áö´Â °æÇâÀ» º¸¿´´Ù. ¼®°í¸¦ È¥ÀÔÇÏÁö ¾ÊÀº °í·Î½½·¡±×¸¦ »ç¿ëÇϰí ÇöóÀֽ̾ÃÀÇ È¥ÇÕºñÀ²À» ³ôÀϼö·Ï °ÇÁ¶¼öÃàÀº °¨¼ÒµÇ¾úÀ¸¸ç ¼öÃàÀú°¨Á¦µµ Áö¿ÀÆú¸®¸ÓÀÇ °ÇÁ¶¼öÃà Àú°¨¿¡ È¿°úÀûÀÓÀ» ¾Ë ¼ö ÀÖ¾ú´Ù.
¿ä¾à2 Slump flow, compressive strength, flexural strength and drying shrinkage were measured to evaluate workability and mechanical performance of geopolymer. Experimental parameters include the addition of gypsum, blending ratio of blast furnace slag and fly ash and addition of shrinkage reducing agent. Geopolymer using blast furnace slag mixed with gypsum showed larger slump flow than blast furnace slag without gypsum. The slump flow when blending ratio of blast furnace slag and fly ash is 5:5 tended to be larger than the slump flow when blending ratio is 8:2. Geopolymer using blast furnace slag without gypsum showed higher compressive strength and flexural strength than blast furnace slag mixed with gypsum. Compressive strength and flexural strength tended to be higher when blending ratio of blast furnace slag and fly ash was 8:2 than when blending ratio was 5:5. Drying shrinkage decreased with increasing fly ash and blast furnace slag without gypsum, and it was found that shrinkage reducing agent is effective to reduce drying shrinkage of geopolymer.
¼ÒÀåó Çѱ¹±¸Á¶¹°Áø´ÜÇÐȸ
¾ð¾î Çѱ¹¾î
DOI https://doi.org/10.11112/jksmi.2019.23.1.45
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