| Title |
Design of a Concrete Mix Considering Curing Temperature and Daely Time in Concrete Placement |
| Authors |
Moon, Sungwoo ; Lee, Seong-Haeng ; Choi, Hyun-Uk |
| DOI |
http://dx.doi.org/10.6106/KJCEM.2019.20.1.133 |
| Keywords |
Concrete Mix Desigh ; Concrete Strength ; Robust Design Method ; Internal Design Factor ; External Influence Factor |
| Abstract |
The concrete mix should be designed and produced to reflect the specific site conditions during concrete placement. That is, the concrete mix design should be planned considering temperatures, work environments, pouring methods, etc. The objective of this research is to understand the external factors of curing temperature and delay time that influence concrete strengths during pouring work, and provide concrete mix design that can be most robust to the effects of external factors. The Taguchi's robust method is used in preparing the concrete mix design to achieve the research objective. In a case study, an indoor concrete test was performed to find the optimal combination of concrete mixes with external factors of curing temperature and delay time. Concrete test cylinders were made to test concrete strengths given different external factors. The study results showed that the optimal performance of concrete strength can be achieved by applying the robust method when preparing ac oncrete mix design. |