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Çѱ¹»ý¹°È¯°æÁ¶ÀýÇÐȸ / v.9, no.1, 2000³â, pp.47-59
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( Development of Hydroponic Media Using Fly Ash and Clay System Cultures ) |
| ±èÀϼ·;°À§¼ö;½Å´ë¿ë;·ù±Ùâ; °¿ø´ëÇб³ ½Ä¹°ÀÀ¿ë°úÇкÎ;°¿ø´ëÇб³ ³ó¾÷±â°è Àü°ø;°¿ø´ëÇб³ ¼®À纹ÇսżÒÀç Á¦Ç°¿¬±¸¼¾ÅÍ;°¿ø´ëÇб³ ½Ä¹°ÀÀ¿ë°úÇкÎ;
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| ¼®ÅºÈ¸ÀÇ ÁÖ°áÁ¤»óÀº mullite, quartz¿Í calcite·Î Åä¾çÀÇ ±¤¹°¼ººÐ°ú ÀÔµµºÐÆ÷°¡ À¯»çÇÏ¿© Àΰø¹èÁöÀÇ ¿ø·á·Î »ç¿ëÀÌ °¡´ÉÇÏ¿´´Ù. ¼®ÅºÈ¸-Á¡Åä(FAJC)°è ¹èÁö´Â Á¡ÅäÀÇ Ã·°¡·®, ¿Ã³¸® ¿Âµµ¿Í À¯Áö½Ã°£ÀÌ Áõ°¡ÇÔ¿¡ µû¶ó ºÎÇǺñÁß°ú ¾ÐÃà°µµ°¡ Áõ°¡ÇÏ¿´À¸³ª Èí¼öÀ²°ú °Ñº¸±â ±â°ø·üÀº °¨¼ÒÇÏ¿´´Ù. 1,15$0^{circ}C$¿¡¼ 10ºÐ°£ ±Þ¼Ó°¡¿ ó¸®ÇÑ 95FA5JC ¹èÁö´Â ¹°¸®Àû ¼ºÁúÀÌ ¿ì¼öÇÏ¿´À¸³ª °¡¼Ò¼ºÀ» ºÎ¿©ÇÏ´Â Á¡ÅäÀÇ Ã·°¡·® ºÎÁ·À¸·Î ¼ºÇüüÀÇ Á¦ÀÛÀÌ °ï¶õÇÏ¿© Àΰø¹èÁö¸¦ Á¦Á¶Çϱâ À§ÇÏ¿©´Â 10%(w) ÀÌ»óÀÇ Á¡ÅäÀÇ Ã·°¡°¡ ÇÊ¿äÇÏ¿´´Ù 1,15$0^{circ}C$¿¡¼ 10ºÐ°£ ±Þ¼Ó°¡¿ ó¸®ÇÑ 90FA10JC10SD ¹èÁö´Â Åé¹äÀÌ °¡¿¬¼º ¹ßÆ÷Á¦È£ ÀÛ¿ëÇÏ¿© ºÎÇǺñÁß 1.14, Èí¼öÀ² 54.4%, °Ñº¸±â ±â°ø·ü 59.6% ¹× ¾ÐÃà°µµ 54kgf.$cm^{-2}$ À̾úÀ¸¸ç 240½Ã°£ °æ°úÈÄÀÇ pH´Â 7.1·Î¼ ¾ç¾×Àç¹è¿ë Àΰø¹èÁö·ÎÀÇ »ç¿ëÀÌ °¡´ÉÇÏ¿´´Ù. FACaCS°è ¹èÁö´Â »ý¼®È¸¿Í ¼Ò¼®°íÀÇ Ã·°¡·®ÀÌ Áõ°¡ÇÒ¼ö·Ï Èí¼öÀ²°ú °Ñº¸±â ±â°øÀ²Àº °¨¼ÒÇÏ¿´À¸³ª, ºÎÇǺñÁß°ú ¾ÐÃà°µµ´Â Áõ°¡ÇÏ¿´À¸¸ç, 1,10$0^{circ}C$¿¡¼ 20ºÐ°£ ¿Ã³¸®ÇÑ 90FA10Ca5CS ¹èÁö´Â ¹°¸®Àû ¼ºÁúÀÌ ¾çÈ£ÇÏ¿´À¸³ª ³íÀº pH¸¦ ³ªÅ¸³»¾î pH¸¦ ³·Ãß±â À§ÇÑ Àüó¸® °øÁ¤ÀÌ ÇÊ¿äÇÏ¿´´Ù. |
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| In order to investigate the physical and chemical properties of artificial culture media, the specimens were substituted with 5~20£¥ clay, 10~30£¥(w) quick lime, 5~l5£¥(w) burnt plaster and 10£¥(w) sawdust. Fly ash-clay bodies were sintered at 1,050~1,20$0^{circ}C$ and then their properties were determined. It was found that 90FA10JC(fly ash £«clay(90£º10, £¥(w)) specimen sintered at 1,15$0^{circ}C$ for 10 min. had good physical and chemical properties. When this composition was supplement with 10£¥(w) sawdust, bulk density water absorption, apparent porosity, compressive strength and pH after 240 hrs curing time were 1.14, 54.4£¥, 39.5£¥, 54 kgf.cm$^{-2}$ and 7.1 respectively. The physical properties of fly ash-quick lime-burnt plaster system specimens were superior to FAJC systems. However, this composition we not suitable as a artificial culture media because of its high pH. In this study, it was shown that 90FA10JC10SD(90FA10JC £«10£¥(w) sawdust) system exhibited the best physical properties. |
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| ´Ù°øÁúÀç·á;¹°¸®¡¤ÈÇÐÀû ¼ºÁú;¹Ì¼¼±¸Á¶;Àΰø¹èÁö;artificial culture media;micro structure;physical¡¤chemical properties;porous materials; |
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»ý¹°È¯°æÁ¶ÀýÇÐȸÁö / v.9, no.1, 2000³â, pp.47-59
Çѱ¹»ý¹°È¯°æÁ¶ÀýÇÐȸ
ISSN : 1229-4675
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO200011922407108)
¾ð¾î : Çѱ¹¾î |
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| ³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø |
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