Effects of Curing Condition on the Relationship Between Longitudinal Wave Velocity and Compressive Strength Concrete

양생조건이 콘크리트의 종파속도와 압축강도의 상관관계에 미치는 영향

  • 이희근 (정회원, 성균관대학교 토목공학과) ;
  • 황수덕 (정회원, 성균관대학교 토목공학과) ;
  • 이광명 (정회원, 성균관대학교 토목공학과)
  • Published : 2000.04.01

Abstract

Nondestructive tests are useful method in rapidly evaluating the condition of existing concrete structures. An objective of this work is to investigate the factors influencing the longitudinal wave velocity-strength relationship, such as w/c ratio, curing temperature, curing condition. Test results show that a change in the w/c ratio ranging from 0.46 to 0.88 and in the curing temperature from 1$0^{\circ}C$ to 3$0^{\circ}C$ did not alter the velocity-strength relationship. however, curing methods had significant effects on the velocity-strength relationship. Therefore, the estimation of compressive strength until 28 day can be accomplished by only a nonlinear equation with consideration of curing condition.

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