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Çѱ¹µµ·ÎÇÐȸ / v.11, no.3, 2009³â, pp.51-60
½Ã¸àÆ®ÄÜÅ©¸®Æ® Æ÷ÀåÀÇ °í°­µµ °í³»±¸¼ºÀ» À§ÇÑ ±âÃÊ ¿¬±¸ : Part II ÃÖÀû¹èÇÕÄÜÅ©¸®Æ®ÀÇ °­µµ ¹× ³»±¸Æ¯¼º ºÐ¼®
( Fundamental Study on High Strength and High Durability Cement Concrete Pavement: Part II Strength and Durability Evaluations )
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This study investigates the fresh state characteristics, strength, chloride ion penetration resistance and freeze-thaw resistance of the suggested high strength-high durability cement concrete pavement. The required workability and air content could be achieved by using an appropriate admixtures. However its dosage should be carefully determined through field trial batches. Compressive strength increased with the increased cement content and, in particular, high cement volume concrete continuously developed strength up to 90 days. No clear relationship, however, existed between flexural strength and cement content. Chloride penetration resistance seemed as a function of curing age rather than the cement content. Freeze-thaw resistance test was conducted using two different coolants, tap water and 4% NaCl solution. When the tap water was used no severe damage was observed up to 300 cycles regardless the air content. Under 4% NaCl solution, specimens of 326kg/$m^3$ cement content showed severe damage with surface scaling. Based on the experimental investigations herein, it is highly recommended that the cement content be greater than 400kg/$m^3$ for strength-high durability cement concrete pavement structures.
 
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Çѱ¹µµ·ÎÇÐȸ³í¹®Áý / v.11, no.3, 2009³â, pp.51-60
Çѱ¹µµ·ÎÇÐȸ
ISSN : 1738-7159
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO200929535567883)
¾ð¾î : Çѱ¹¾î
³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø
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