Abstract
The concept of completely recyclable concrete, refererred as CRC hereafter, was introduced in the year 1994. Since then, researches have continuously been conducted for the purpose of putting it to practical usage. There are two types of CRC ; one is "Cement-Recovery Type" which turns all materials of concrete to raw materials of cement after demolishing. The other is "Aggregate-Recovery Type" -By coating the aggregate, it enables us to recycle high quality recycled aggregate after demolishing. In order for the CRC to take root as one of the basic techniques necessary for sustainable construction, it is important to verify the production process used in building an actual structure. We, therefore, produced a standard mixing of CRC based on the concrete mixing specification of AIJ. And by utilizing the standard mixing, we actually produced the CRC at a ready-mixed-concrete plant and used it in the foundation of the SPRH. As a result, we confirmed that the CRC can be put to use as same as normal concrete and that the quality of the concrete is more than sufficient for construction material in general.
