| Title |
Estimation of the Compressive Strength of the Concrete Incorporating Fine Particle Cement with Equivalent Age |
| Authors |
Han Cheon-Goo ; Han Min-Cheol ; Choi Sung-Yong ; No Dong-Hyun |
| Keywords |
Maturity ; Equivalent Age ; Fine Particle Cement ; Compressive Strength ; Curing Temperature |
| Abstract |
This study presents the estimation of the strength developments of the concretes considering the equivalent age using the fine particle cement (FC) which is manufactured by the classification process. Contents and W/B were considered as experimental parameters. The strength considering the equivalent age is gradually increased, and the deviation of the strength according to W/C is increased by increasing becoming low W/C in accordance with the replacement of the fine particle cement. For the estimating Ea considering setting time, the apparent activating energy of the FC is calculated with 27.6～28.9KJ/mol, which is somewhat similar to that of OPC. By applying Ea based on setting time, improved agreement was obtained. However, it has still deviations in the region of high contents of FC. For this reason, addition of correction factor in existing equivalent age was done to enhance the accuracy of the estimation. By doing this, we can obtain improved results. |