| Title |
A Study on the Characteristics of Concrete Using AE Water Reducing Agents of Early-strength Type |
| Authors |
Jeon Hyun-Gyu ; Ji Suk-Won ; Seo Chee-Ho |
| Keywords |
AE Water Reducing Agent of Early-Strength Type ; Removal Time of the Forms |
| Abstract |
The way to shorten a construction period is considered to an very important technology development element as reducing the formwork removal periods with promoting strength revelation own concrete.
This study executed experiment to review usability of early strength revelation chemical admixture which is judged in ways effective with premature removal of form about concrete. The results are as follows.
1) A compression strength of the concrete which used early strength revelation AE water reducing admixture compare with the concrete which used general high performance AE water reducing admixture appeared so that Generally revealed a high compression strength in the early age.
2) Compression strength are appeared except some combinations in 20 degrees condition of curing temperature between 16 hours as was satisfied with a more than 5MPa so that removal of vertical form was possible.
3) Use of early strength revelation AE water reducing admixture is appearing so that strength revelation by early hydration promotions is excellent. So construction cost reductions and a construction period shortening are judged so that it is possible. |