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½Ã¸àÆ®°è Á¢ÇÕºÎÀÇ Æú¸®¸Ó È¥ÀÔ ¹× ÇÔ¼ö»óÅ¿¡ µû¸¥ À¯µµ°¡¿¿¡ ÀÇÇÑ ºÐÇؼº Æò°¡ / Disassembly Properties of Cementitious Joints using Induction Heating by Polymer Contents and Moisture Condition |
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´ëÇÑ°ÇÃàÇÐȸÁöȸ¿¬ÇÕȸ ³í¹®Áý, Vol.17 n.05 (Åë±Ç69È£) (2015-10) |
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½ÃÀÛÆäÀÌÁö(127) ÃÑÆäÀÌÁö(8) |
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À¯µµ°¡¿ ; µµÀü¼º ÀúÇ×ü ; ºÐÇؼº ; Á¶¸³¼º ; Induction Heating ; Conductive Resistor ; Disassembly Properties ; Assembly Properties |
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°Ç½Ä Á¢ÇÕ¹æ¹ý¿¡ ºñÇÏ¿© ½Ã¸àÆ®°è Á¢ÇÕ¹æ¹ýÀº °ÇÃ๰ÀÇ ´Ù¾çÇÑ Á¢ÇսýºÅÛ °¡¿îµ¥ °¡Àå ¹ü¿ëÀûÀ¸·Î »ç¿ëµÇ¸ç Á¶¸³¼ºÀÌ ¿ì¼öÇÑ ¹Ý¸é, ÇØü µîÀÇ ¿ª°øÁ¤¿¡¼ °¢ ºÎÀç ¹× ºÎÇ°ÀÇ ºÐ¸®¡¤ºÐÇØ°¡ ¾î·Á¿î ½ÇÁ¤ÀÌ´Ù. µû¶ó¼ º» ¿¬±¸¿¡¼´Â °ÇÃà ºÎÀç ¹× Àç·áÀÇ °áÇÕ¹æ¹ýÀ¸·Î¼ ¹ü¿ëÀûÀ¸·Î ÀÌ¿ëµÇ´Â ½Ã¸àÆ®°è Á¢Çպο¡ ºÐÇؼºÀ» ºÎ¿©ÇÏ´Â °ÍÀ» ¸ñÀûÀ¸·Î À¯µµ°¡¿ ¸ÞÄ¿´ÏÁòÀÇ Àû¿ëÀ» µµ¸ðÇÏ¿´´Ù. ¿¬±¸°á°ú, À¯µµ°¡¿¿¡ ÀÇÇØ µµÀü¼º ÀúÇ×ü°¡ »ðÀÔµÈ ½Ã¸àÆ®°è Á¢ÇÕºÎÀÇ ºÐÇØÈ¿°ú¸¦ È®ÀÎÇÒ ¼ö ÀÖ¾úÀ¸¸ç, öÁ¦¸Á, ÆÝĪ¸ÞÅ», °¼¶À¯°¡ È¥ÀÔµÈ ½Ã¸àÆ® ¸ð¸£Å¸¸£´Â °íÁÖÆÄ Ãâ·Â 2. 25kW Á¶°Ç¿¡¼ ¾à 60ÃÊ À̳»¿¡ °è¸éÀÇ Ãë¾àÈ°¡ °¡´ÉÇÏ¿´´Ù. ±×·¯³ª ¸ð¸£Å¸¸£ ³»ºÎ ÇÔ¼ö»óÅ ¹× Æú¸®¸Ó ÇÔÀ¯À²¿¡ µû¶ó À¯µµ°¡¿¿¡ ÀÇÇÑ Æø·ÄÇö»óÀÌ ³ªÅ¸³ª´Â °æ¿ì°¡ ÀÖ¾ú´Ù. |
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Efficient maintenance and upgrading of a building during its lifecycle are difficult because a cementitious finish uses materials and parts with low disassembly properties. Additionally, the reuse and recycling processes during building demolition also present numerous problems from the perspective of environmental technology. In this study, an induction heating (IH) method was used to disassemble cementitious finish joints, which are widely used to join building members and materials. The IH rapidly and selectively heated and weakened these joints. The temperature elevation characteristics of the cementitious joint materials were measured as a function of several resistor types, including wire meshes and punching metals, which are usually used for cementitious finishing. The disassembly properties were evaluated through various tests using conductive resistors in cementitious joints such as mortar. When steel fiber, punching metal, and wire mesh were used as conductive resistors, the cementitious modifiers could be weakened within 60 s when high frequency output conditon is 2. 25kW. But spalling phenomenon of mortar was occurred by induction heating according to moisture condition and polymer contens. |