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ÁßÀ¯µ¿ ÄÜÅ©¸®Æ® Á¦Á¶¸¦ À§ÇÑ ·¹¿Ã·ÎÁö ¼º´É ¹üÀ§ Á¦¾È / A Sugeestion of Rheological Performance Range for Manufacturing Mid-workability Concrete |
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ÀÌÀ¯Á¤(Lee, Yu-Jeong) ; ÀÌ¿µÁØ(Lee, Young-Jun) ; Çѵ¿¿±(Han, Dong-Yeop) |
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Çѱ¹°ÇÃà½Ã°øÇÐȸ ³í¹®Áý, Vol.21 No.4 (2021-08) |
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½ÃÀÛÆäÀÌÁö(305) ÃÑÆäÀÌÁö(14) |
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ÁßÀ¯µ¿ ÄÜÅ©¸®Æ®; ·¹¿Ã·ÎÁö; Àç·áºÐ¸® ÀúÇ×¼º; °í¼º´É °¨¼öÁ¦; ·¹¿Ã·ÎÁö Á¤¼ö ; mid-workability concrete; rheology; segregation resistance; superplasticizer; rheology parameters |
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The aim of the research is providing the rheological performance range for manufacturing¡°mid-workability concrete¡±. The mid-workability concrete means the normal strength range concretemixture with high workability. Since there is not enough study or quantitative definitions on performanceof the mid-workability concrete, in this research, the performance range for high workability ofmid-workability concrete mixture using rheology. Because of the mixture characteristics of generallyused normal strength concrete such as relatively high water-to-cement ratio and no SCMs, segregationof coarse aggregate should be prevent to achieve a successful high workability. From the experimentalstudy in this research scope, 5 to 35 Pa.s of plastic viscosity was desirable to prevent segregation fornid-workability concrete, and general performance range with rheological parameters was provided. |