| Title |
A Study on the Estmation of Concrete Strength Using Admixture by Nondestructive Testing |
| Authors |
Kim Jeong-Sup ; Shin Yong-Seok ; Cho Cheol-Hee ; Kim Pan-Sun |
| Keywords |
Admixture ; Nondestructive Testing ; Compressive Strength |
| Abstract |
This study made member specimen for taking specimen, core with the concrete mixing normal concrete, admixture and conducted the same air curing as field conditions. After performing destructive and nondestructive test by age, estimate expression was suggested by analyzing correlations between compressive strength, rebound number and ultrasonic pulse velocity and the results are as follows.
As a result of comparing error rate of existing expressions and this estimation expression, error rate of this estimation is reduced compared to existing expressions and has higher reliability.
When conventional concrete expression is applied to admixture concrete, error rate occurs and then this study suggests the following estimation expressions depending on types of admixture concrete. |