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Çѱ¹µµ·ÎÇÐȸ / v.8, no.3, 2006³â, pp.39-48
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ÄÚÆÃÀç·á¸¦ ÀÌ¿ëÇÑ ºñ¼â¼®°ñÀçÀÇ ¼º´ÉÇâ»ó
( Improvement of Low-quality Local Aggregates Using Coating Materials ) |
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| ¼¼¸³ÀÇ Æ÷¸®¿¡Æ¿·», Ä«ÆêºÎ»ê¹°, ½Ã¸àÆ®¿Í ¶óÅØ½º·Î ÄÚÆÃµÈ ¸Å²ô·´°í µÕ±Ù ±Ô»çÁúÀÇ °ÀÚ°¥À» °¡Áö°í ½ÇÇèÀûÀÎ Á¶»ç°¡ ÀÌ·ç¾îÁ³À¸¸ç ¾Æ½ºÆÈÆ® È¥ÇÕ¹° °ø½Ãü¸¦ ¸¸µé¾ú´Ù. No. 4¹øÃ¼ ÀÌ»ó¿¡ ³²¾Æ ÀÖ´Â °ñÀ縸 ÄÚÆÃÀ» ÇÏ¿´´Ù. °³³äÀº ¸Å²ô·´°í µÕ±Ù °ÀÚ°¥À» ÄÚÆÃÇÔÀ¸·Î¼ Ç¥¸é °ÅÄ¥±â¸¦ Áõ°¡½ÃÄÑ °øÇÐÀû Ư¼ºÀÌ ¿ì¼öÇÑ È¥ÇÕ¹°À» ¸¸µé¾î ³»´Â °ÍÀÌ´Ù. Ç¥ÁØ Å×½ºÆ®¿Í ºñÇ¥ÁØ Å×½ºÆ®¸¦ ÀÌ¿ëÇÏ¿© ¾Æ½ºÆÈÆ® È¥ÇÕ¹° °ø½Ãü¸¦ Æò°¡ÇÏ¿´´Ù. ÄÚÆÃ°úÁ¤°ú Á¦ÇÑµÈ È¥ÇÕ¹° °ø½Ãü Å×½ºÆ® °á°ú¿¡ ±Ù°ÅÇÏ¿© ´ÙÀ½°ú °°Àº °á°ú¸¦ ¾òÀ» ¼ö ÀÖ¾ú´Ù. ¼¼ °¡Áö Á¾·ù·Î ÄÚÆÃµÈ °ñÀ縦 »ç¿ëÇÑ È¥ÇÕ¹°µéÀº Hveem°ú Marshall ¾ÈÁ¤µµ, ÀÎÀå°µµ¿Í ȸº¹Åº¼º°è¼ö°¡ Áõ°¡µÇ¾úÀ¸¸ç ÀÌ´Â ÄÚÆÃµÇÁö ¾ÊÀº °ñÀç·Î ¸¸µç È¥ÇÕ¹°°ú ºñ±³ÇÏ¿© ¼Ò¼ºº¯Çü°ú ±Õ¿ÀúÇ×¼ºÀÌ Çâ»óµÈ °ÍÀ¸·Î ÆÇ´ÜÇÒ ¼ö ÀÖ´Ù. |
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| A laboratory investigation was conducted wherein smooth, rounded, siliceous river gravel aggregates were coated with fine-grained polyethylene, carpet co-product, or cement + styrene butadiene rubber latex and used to prepare hot mix asphalt concrete specimens. Only the coarse (+ No.4) aggregates were coated. The concept was that the coatings would enhance surface roughness of the aggregates and, thus, produce asphalt mixtures with superior engineering properties. Hot mix asphalt specimens were prepared and evaluated using several standard and non-standard test procedures. Based on experiences during the coating processes and analyses of these limited test results, the following was concluded: All three aggregate coating materials increased Hveem and Marshall stability, tensile strength, and resilient modulus(stiffness). These findings are indicative of improved resistance to rutting and cracking in hot mix asphalt pavements prepared using coated gravel aggregates in comparison to similar uncoated gravel aggregates. |
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| ¾Æ½ºÆÈÆ® È¥ÇÕ¹°;°ñÀçÄÚÆÃ;½Ã¸àÆ®;¶óÅØ½º;Ä«ÆêºÎ»ê¹°;ÃÖÀú¼º´É°ñÀç;asphalt mixtures;aggregate coatings;cement;latex;carpet co-product;marginal aggregate; |
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Çѱ¹µµ·ÎÇÐȸ³í¹®Áý / v.8, no.3, 2006³â, pp.39-48
Çѱ¹µµ·ÎÇÐȸ
ISSN : 1738-7159
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO200634741713167)
¾ð¾î : ¿µ¾î |
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| ³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø |
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