쪼갬인장 피로시험 방법에 의한 포장용 콘크리트의 누적 손상 평가

Evaluation of Cumulative Damage of Pavement Concrete Using Split Tension Fatigue Test

The purpose of this paper was to estimate the cumulative damage of pavement concrete by split tension fatigue test. The split tension fatigue test of variable amplitude loading were performed in two and three stages. The results of the fatigue test by variable amplitude loading showed that the sums of damage were greater than 1 in the increasing sequence loading tests, and less than 1 in the decreasing sequence loading tests. The remaining life estimated by equivalent damage theory was almost similar to that of experimental results.