MIXING DESIGN AND QUALITY CONTROL OF RECYCLED AGGREGATE CONCRETE USED IN LARGE-SCALE APPLICATIONS

Recycling system of concrete waste incurred from building demolition

Abstract

Concrete is recognized as a durable construction material and often lasts centuries. Therefore, waste from concrete buildings demolished due to some reasons must be reused from a life-cycle assessment perspective and to ensure effective recycling of construction resources.
Concrete made with low-quality recycled aggregate can achieve sufficient quality to all requirements of related standards as a structural concrete, through the mixing design by use of the aggregate replacing method.
This paper describes as to the mixing design and quality control of about 11,000 m³ of recycled aggregate concrete applied to main structures of a thermal power station scrapped and rebuilt.