Investigation of Shrinkage Stress in the Overlayed Composite Concrete Pavement

Abstract

The bonded overlay type of repairment for concrete pavement is commonly used in Japanese highway. This paper describes the shrinkage stress introduced by the difference of material properties and age between overlayed concrete and original pavement. A method of numerical analysis is proposed in order to estimate shrinkage stresses. Several factors which affect the shrinkage stress were obtained from the results of the analysis.