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Çѱ¹µµ·ÎÇÐȸ / v.11, no.1, 2009³â, pp.13-24
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Àú¼öÃà Àú¹Ý»ç °í°µµ °í³»±¸¼º ÄÜÅ©¸®Æ® Æ÷ÀåÀç·á °³¹ß
( A Development of concrete Pavement Material with Low Shrinkage and Reflection, High Strength and Performance ) |
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| º» ¿¬±¸¿¡¼´Â ÄÜÅ©¸®Æ®ÀÇ °ÇÁ¶¼öÃàÀ» Àú°¨½ÃŰ¸ç °µµ¿Í ³»±¸¼ºÀ» ³ôÀÓ°ú µ¿½Ã¿¡ ÄÜÅ©¸®Æ®ÀÇ ÁÖ°£ ž籤¿¡ ÀÇÇÑ ¹Ý»çµµ¸¦ ÁÙÀÎ Àú¼öÃà, Àú¹Ý»ç, °í°µµ, °í³»±¸¼º, ÄÜÅ©¸®Æ® Æ÷ÀåÀç·á¸¦ °³¹ßÇÏ¿´´Ù. ¹®ÇåÁ¶»ç¸¦ ¹ÙÅÁÀ¸·Î °ÇÁ¶¼öÃà Àú°¨°ú Àå±â°µµ ¹ßÇö¿¡ È¿°ú°¡ ÀÖ´Â ÇöóÀÌ ¾Ö½¬¿Í ¹Ý»çµµ¸¦ Àú°¨½Ã۱â À§ÇÏ¿© °ËÀº»ö ¾È·á¸¦ ³Ö°í °µµ¿Í ³»±¸¼ºÀ» ÁÁ°Ô Çϱâ À§ÇØ ÃÖÀûÀÔµµ¸¦ °í·ÁÇÏ¿© ¹èÇÕ¼³°è¸¦ ÇÏ¿´´Ù. ½Ç³»½ÇÇèÀ» ÅëÇØ °ËÀº»ö ¾È·áÀÇ Ã·°¡À²¿¡ µû¸¥ ¸í¾Ï°ª°ú ¹Ý»çÀ²Àº Â÷À̰¡ ¾ø´Â °ÍÀ¸·Î ³ªÅ¸³µÀ¸¸ç ÃÖÀûÀÔµµ¸¦ °í·ÁÇÏ¸é °µµ¿Í ³»±¸¼º¿¡¼ ÁÁÀº °ÍÀ¸·Î Æò°¡µÇ¾ú´Ù. ¶ÇÇÑ ÇöóÀÌ ¾Ö½¬¸¦ »ç¿ëÇÑ ¹èÇÕÀÌ °ÇÁ¶¼öÃà Àú°¨¿¡ È¿°ú°¡ ÀÖ¾úÀ¸¸ç ¿°ÈÀ̿ ħÅõ ÀúÇ×¼ºµµ ³ôÀº °ÍÀ¸·Î µå·¯³µ´Ù. ÇöóÀÌ ¾Ö½¬(25% ġȯ)¿Í °ËÀº»ö ¾È·á(3% ÷°¡)¸¦ ³Ö°í ÃÖÀûÀÔµµ¸¦ °í·ÁÇÑ ¹èÇÕÀÌ °ÇÁ¶¼öÃà°ú ¹Ý»çÀ² Àú°¨, °µµ¿Í ³»±¸¼º Çâ»ó¿¡ °¡Àå ÀûÇÕÇÑ ¹èÇÕÀ¸·Î ÆÇ´ÜÇÏ¿´´Ù. °æÁ¦¼º ºÐ¼®À» ÅëÇÏ¿© ÀÏ¹Ý ÄÜÅ©¸®Æ® Æ÷À庸´Ù Àú¼öÃà Àú¹Ý»ç °í°µµ °í³»±¸¼º ÄÜÅ©¸®Æ® Æ÷ÀåÀÌ ÃÊ±â°ø»çºñ´Â ¸¹Àº °ÍÀ¸·Î ºÐ¼®µÇ¾úÁö¸¸ Àå±âÀûÀÎ °üÁ¡¿¡¼ À¯Áöº¸¼öºñ¿ë°ú »çȸºñ¿ë °¨¼Ò·Î ÀÎÇÏ¿© °æÁ¦¼ºÀ¸·Î Ÿ´çÇÑ °ÍÀ¸·Î ³ªÅ¸³µ´Ù. |
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| This study developed a high strength and performance concrete pavement material with low shrinkage and reflection of sunlight. Based on the literature review, a new mix-design of applying flash ash to improve the strength and performance of the concrete as well as to reduce the dry shrinkage is suggested. In addition, adding black pigment to reduce the reflection and technique of applying OAG (Optimized Aggregate Gradation) is also included. The result of the laboratory experiment indicates that the brightness and the reflection, which depends on the ratio of black pigment addition, did not deviate from the normal range. When OAG is considered for the mix-design, the strength and performance of the concrete improved greatly. In addition, the mix-design using fly ash reduced the dry shrinkage of concrete and improved the resistance to the permeation of chloride ion. Furthermore, the mix-design, which uses fly ash (25% replacement) and black pigment (3% addition) with the application of OAG, is found to be the most effective mix to reduce the shrinkage and reflection as well as improving the strength and performance of the concrete. The result of an economic analysis indicates that the initial construction cost of this proposed mix is more expensive than that of normal concrete pavement material. However, it can be more economic in the long run because the normal concrete pavement material is likely to cost more due to higher probability of maintenance and repair and higher social cost due to traffic accident, etc. |
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| Àú¹Ý»ç;Àú¼öÃà;°í°µµ;°í³»±¸¼º;ÃÖÀûÀÔµµ;ÄÜÅ©¸®Æ®;Æ÷Àå;low shrinkage;low reflection;high strength;high performance;optimized aggregate gradation;concrete;pavement; |
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Çѱ¹µµ·ÎÇÐȸ³í¹®Áý / v.11, no.1, 2009³â, pp.13-24
Çѱ¹µµ·ÎÇÐȸ
ISSN : 1738-7159
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO200911850421579)
¾ð¾î : Çѱ¹¾î |
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| ³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø |
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