A STUDY ON THE EFFECTS OF STRIPPING TIME OF SHEATHING AND INITIAL CURING ON PROPERTIES OF CONCRETE IN STRUCTURE

Abstract

This paper aims to suggest the stripping time of sheathing and the initial curing method of concrete, in order to ensure the quality of concrete in structure. The parameters of the experiment were water-cement ratio, stripping time of sheathing and curing condition matched to four seasons in Japan. After the result of the experiment, the sheathing can be stripped before seven days, with no curing when the ordinary concrete using normal portland cement grows its compressive strength over 100 kgf/cm^2. Because the compressive strength, Young's modulus and anti-carbonation were sufficiently ensured.