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Çѱ¹°ÇÃà½Ã°øÇÐȸ / v.11, no.6, 2011³â, pp.587-596
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È¥ÈÀç Á¾·ù ¹× ¾ç»ýÁ¶°Ç¿¡ µû¸¥ ¼Ó°æ¼º SBR ½Ã¸àÆ® ¸ð¸£Å¸¸£ÀÇ °µµ
( Strengths of Rapidly Hardening SBR Cement Mortars as Building Construction Materials According to Admixture Types and Curing Conditions ) |
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| Æú¸®¸Ó ½Ã¸àÆ® ¸ð¸£Å¸¸£¸¦ ±ä±Þ°ø»çÀÇ º¸¼ö º¸° Àç·á·Î »ç¿ëÇÒ ¶§, ÃʼӰæ½Ã¸àÆ®¿Í È¥ÀÔÇÏ¿© »ç¿ëÇÔÀ¸·Î½á ½Ã¸àÆ®ÀÇ ºü¸¥ ÀÀ°á°ú ½Ã¸àÆ® ¸ÅÆ®¸¯½º ³»ºÎ¿¡¼ Çü¼ºµÈ Æú¸®¸Ó Çʸ§ÀÇ ÀÛ¿ëÀÌ ¹°¸®Àû ¼ºÁú°ú ³»±¸¼ºÀ» °³¼±½Ãų ¼ö ÀÖ´Ù. ¶ÇÇÑ °¢Á¾ È¥ÈÀç·á¸¦ È¥ÀÔÇÔÀ¸·Î½á ¸ÅÆ®¸¯½º ³»ºÎ °ø±ØÀ» ÃæÀüÇÏ¿© ¼ºÁúÀ» °³¼±½Ãų ¼ö Àִµ¥, ¾ç»ý¹æ¹ýÀÌ Å« ¿µÇâÀ» ¹ÌÄ¥ ¼ö ÀÖ´Ù. º» ¿¬±¸¿¡¼´Â ¼Ó°æ¼º SBR ½Ã¸àÆ® ¸ð¸£Å¸¸£ÀÇ ¾ÐÃà°µµ¿Í ÈÚ°µµ¿¡ ¿µÇâÀ» ¹ÌÄ¥ ¼ö Àִ ȥÈÀç·á¿Í ¾ç»ýÁ¶°Ç¿¡ °üÇÏ¿© ½ÇÇèÀ» ½Ç½ÃÇÏ¿© ±× ¿µÇ⼺À» Æò°¡ÇϰíÀÚ ÇÏ¿´´Ù. º» ¿¬±¸°á°ú, ÃʼӰæ½Ã¸àÆ® ¸ð¸£Å¸¸£¿¡ SBRÀ» È¥ÀÔÇÔÀ¸·Î½á ÈÚ°µµ¿Í ¾ÐÃà°µµ°¡ Å©°Ô °³¼±µÇ¾úÀ¸¸ç, ¿©±â¿¡ ¸ÞŸī¿Ã¸°À» È¥ÀÔÇÔÀ¸·Î½á º¸´Ù ´õ °µµ¸¦ ÁõÁø½Ãų ¼ö ÀÖ¾ú´Ù. ¶ÇÇÑ ¾ç»ý¹æ¹ý¿¡ À־µ SBRÀ» »ç¿ëÇÑ °æ¿ì¿¡´Â Ç¥Áؾç»ý¿¡¼, SBRÀ» »ç¿ëÇÏÁö ¾ÊÀº °æ¿ì¿¡´Â ¼öÁß¾ç»ý¿¡¼ °µµ¹ßÇöÀÌ Å©°Ô ³ªÅ¸³µ´Ù. |
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| Ultra rapid-hardening cement is widely used for latex-modified mortar and concrete as repair and finishing material during urgent work. The purpose of this study is to evaluate the improvements in strength made to SBR cement mortars by the adding of various admixtures and by the use of different curing methods. SBR cement mortar was prepared with various polymer-cement ratios, curing conditions and admixture contents, and tested for flow, flexural and compressive strengths. From the test results, it was determined that the flow of SBR cement mortar increased with an increase in the polymer-cement ratio, and the water reducing ratio also increased. The strength of cement mortar is improved by using SBR emulsion, and is strengthened by adding metakaoline. The strength of SBR cement mortar cured in standard conditions was increased with an increase in the polymer-cement ratio, and attained the maximum strengths at polymer-cement ratios of 15 % and 10 %, respectively. The maximum strengths of SBR cement mortar are about 1.8 and 1.3 times the strengths of plain mortar, respectively. In this study, it is confirmed that the polymer-cement ratio and curing method are important factors for improving the strengths of rapid-hardening SBR cement mortar. |
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| Æú¸®¸Ó ½Ã¸àÆ® ¸ð¸£Å¸¸£;Æú¸®¸Ó ½Ã¸àÆ®ºñ;°¨¼öÀ²;ÈÚ°µµ;¾ÐÃà°µµ;polymer cement mortar;polymer-cement ratio;water reducing ratio;flexural strength;compressive strength; |
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Çѱ¹°ÇÃà½Ã°øÇÐȸÁö / v.11, no.6, 2011³â, pp.587-596
Çѱ¹°ÇÃà½Ã°øÇÐȸ
ISSN : 1598-2033
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO201106239852690)
¾ð¾î : Çѱ¹¾î |
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| ³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø |
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