RESEARCH OF PROPERTIES OF CONCRETE WITH THE USE OF FLY ASH

Taking care of the environment in accordance with the principles of sustainable development introduces the possibility and the need for waste recycling. The greatest potential for reuse of waste has the construction industry – building materials industry. The article presents the results of selected properties (consistency, water absorption, water resistance and compressive strength after 28 days of ripening) of ordinary concretes and concretes containing in its composition the maximum amount of fly ash. Studies have demonstrated the usefulness of fly ash as a substrate for the production of concrete components