JOURNAL BROWSE
Search
Advanced SearchSearch Tips
Correlation between Longitudinal Wave Velocity and Strength of Early-aged Concrete
facebook(new window)  Pirnt(new window) E-mail(new window) Excel Download
 Title & Authors
Correlation between Longitudinal Wave Velocity and Strength of Early-aged Concrete
;;;;
  PDF(new window)
 Abstract
The usage of nondestructive testing on early-aged concrete leads to enhacned safty and allows effective scheduling of construction, thus making it possible to maximize the time and cost efficiencies. In this study, a reliable nondestructive strength evaluation method for early-aged concrete using the longitudinal wave velocity is proposed. Compression tests were performed to examine factors influencing the velocity-strength relationship of concrete, such as water-cement (w/c) ratio, fine aggregate ratio, curing temperature, and curing condition. The test results show that a change in the w/c ratio and curing temperature has minor effect on the velocity-strength relationship/ However, curing condition significantly influences the velocity-strength relationship of early-aged concrete. Moreover, the longitudinal wave velocity increases with decreasing fine aggregate ratio. It is concluded from this study that the strength evaluation of early-age concrete can be achieved by a nonlinear equation which considers the effects of curing condition and fine aggregate ratio.
 Keywords
nondestructive teat;impact-resonance test;compressive strength;early-aged concrete;curing;fine aggregate ratio;
 Language
Korean
 Cited by
1.
온도와 재령이 콘크리트의 동탄성계수와 정 탄성계수의 상관관계에 미치는 영향,한상훈;김진근;박우선;김동현;

한국콘크리트학회논문집, 2001. vol.13. 6, pp.610-618 crossref(new window)
 References
1.
콘크리트학회 학술발표회, 1998. vol.10. 2, pp.725-730

2.
구조물진단학회지, 1999. vol.3. 3, pp.157-165

3.
비파괴검사학회지, 1999. vol.19. 2, pp.259-269

4.
In-Situ/Nondestructive Testing of Concrete, 1984. pp.201-227

5.
Proceedings, Fourth Far East Conference on NDT, 1997. pp.433-442

6.
Properties of Concrete(4th edition), 1995. pp.631-632

7.
Impact-Echo, 1997. pp.51

8.
ACi Materials Journal, 1988. vol.85. 4, pp.389-399

9.
ACI Materials Journal, 1996. vol.93. 3, pp.260-271