In the course of the study, an analysis of the condition of the mosaic floor covering in various operating conditions and at various facilities was carried out. The main advantages and disadvantages of floor coverings using marble, the features of their operation are revealed. The purpose of the study is to simplify and confirm the acceptability of the technology of marble floors, taking into account the factors of influence and the type of room. The main tasks are to conduct a study on the wear of the floor covering over time; to determine the timing of the current repair of the floor covering; to conduct a study of the preservation of the reflectivity (gloss) of floor coverings using marble. The practical significance lies in drawing up a graph of the dependence of floor wear on its type and time based on the analysis of visual inspection and physical measurements.

Keywords: marble floor, polishing, grinding, wear, breccia, mosaic coating, technology, profiler, restoration, seamless, colored concretes

Organizational and technological installation operations for flat arches and window boards in the window openings of brick buildings are developed based on innovative modern buildings, on economically justified methods of work production. It is proposed domestic technical rigging, tools, means of performed works quality control taking into account the solution of import substitution problem while works production. Regions of the Russian Federation having clay and sand as local materials for bricks production prefer to use the bricks in low-rise buildings construction. It is emphasized a need to resume the use of standard projects for construction of residential low-rise buildings, cultural, recreational, educational, sports, medical and commercial buildings made of brick as a local building material. One gives the algorithm of the construction process: storage on construction site, workplace supply and erection (installation) of flat arches and window boards in window openings of brick walls. The article describes in detail construction process organizational and technological solutions and techniques. General instructions on the safety of work, as well as the organization and methods of workers labor are given. The possibility of construction time reducing by typifying the low-rise buildings construction, including those made of bricks, using locally available construction materials is shown. The article shows the efficiency of use of labor resources and construction materials supply from storage site to installation spot, considering the correct assembled elements installation provision.

Keywords: flat arch, window board, window opening, brick, brick element, mason, installer, workplace, rigging, crane