The article examines the influence of various superplasticizers on the performance characteristics of concrete. A series of tests of samples-beams of fine-grained concrete modified with plasticizers of various types was carried out. The optimal amount of the introduced additive was experimentally determined to compare the plasticizing effect of the cement-sand mixture. Experimental data are given indicating the main operational characteristics of the material depending on the additive used. The most effective additive "Polyplast SP-3" has been determined.

Keywords: concrete, fine-grained concrete, mixture, lignosulfonates, polycarboxylates, naphthalene sulfonates, plasticizer, superplasticizer, water demand, plasticity

Failure of communication equipment and automated control systems by the fire of the State Fire Service of the Ministry of Internal Affairs of the Russian Federation, leads to a significant reduction in staffing it and, as a consequence of this, to the disruption of assigned tasks. Proposed generalized analysis allows to take into account all the factors affecting the recovery process as a single sample and the communication system and create a conceptual model of the recovery process communication equipment repair bodies of technical communications and automated control systems of the State Fire Service of the Ministry of Internal Affairs of the Russian Federation.

Keywords: communication, communication technology and management information systems, technical support communication and control systems, recovery, repair, maintainability.

Failure of communication equipment and automated control systems by the fire GPS MES of Russia, leads to a significant reduction in staffing it and, in consequence, to the disruption of assigned tasks. The proposed conceptual model and its verbal description allowed to identify bottlenecks in the process of restoring the vehicle to repair the organ, and in its financial support in the form of appropriate repair kits of spare parts, as well as its efficiency in the reduction of the distribution group damaged samples according to multiplicity created ZIP.

Keywords: communication, communication technology and automated control systems, technical support communication and automated control systems, recovery, repair, maintainability..