Concrete Technology, Concrete composition materials, Bonding reactions between the materials that make up concrete, Green concrete, Substitute materials and substitute materials as a substitute for one of the materials that make up concrete, Utilization of waste as one of the materials that make up concrete, Characterization of waste materials as a concrete mixture, disadvantages and advantages of materials resulting from the use of waste for concrete, wood as a construction material, characteristics of wood, methods and technology for processing wood as a construction material, characterization of substitute and additional materials in construction, properties and types of steel as a construction material