ON THE LONG TERM PROPERTIES OF CONCRETE

Abstract

A local exposure test of concrete miniature models, which imitated the Prestressed Concrete Containment Vessel (PCCV), is being done in the Kansai Electric Power Oi Power Plant. The miniature are exposed to the environment identical to the actual PCCV's in a long term. The concrete of the miniature are tested to measure a compressive strength, an elastic coefficient, a neutralization depth, and a chloride content measurement, etc. to observe the changes of material properties. Ten years has passed and the durability and stability of the concrete model were observed by test results.