Properties of Cement Based Composite with Fine Ground Recycled Concrete

The paper contributes to sustainable building; it deals with the topics recycling of concrete waste and partial substitution of classical cement binder by more ecologically friendly binder made from waste materials. The investigations focused on hydraulic properties of micro-ground recycled concrete. Several mixtures were designed with the components: cement, ultra-fine ground recycled concrete and water. Testing specimens with dimensions 40x40x160 mm were elaborated and mechanical properties were tested. The results of tests are analyzed and influence of substitute binder evaluated.