ECOLOGICAL SAFETY OF BUILDING MATERIALS, IN THE PRODUCTION OF WHICH PRODUCTION AND CONSUMPTION WASTE ARE USED (BY THE EXAMPLE OF ECO-CONCRETE) Article Maksimova O.A., Mikhalichenko K.Yu., Kurbatova A.I., Korshunova A.Yu., Klimakina A.V. Ecology and Industry of Russia. Калвис. Vol. 21. 2017. P. 58-63