PROPERTIES OF GREEN REACTIVE POWDER CONCRETE CONTAINING DIFFERENT RECYCLED MATERIALS

Abstract

Reactive powder concrete is an important and widely utilized materials in modern-day construction. During the last decades, in most countries including Iraq, a large number of old buildings has been demolished so that a million tons of recycled and reuse of building rubble have been produced. This study investigates the possibility of using different demolished building in green reactive powder concrete. The green reactive powder concrete GRPC mixes were prepared with 25% replacement of norm al fine aggregate by recycled aggregate (crushed concrete or waste glass) and waste, glass as a replacement of cement with 10, 20, 30%. The test result showed that it is possible to produced GRPC containing two different waste materials with properties similar to those of normal reactive powder concrete. Strength, properties (flexura1 and compressive strength) of green reactive powder concrete (GRPC) decreases slightly when using waste materials from demolished building as fine aggregate while increases when uses waste, glass powder WCP as a replacement of cement.