The results of the development of a set of indicators for the quality of construction products on the example of a reinforced concrete pile are presented. The analysis of the requirements of regulatory documentation for the evaluation of aesthetic indicators of the product is carried out. A solution to the dispute between the Supplier and the Customer on the issue of assessing the quality of the concrete surface is proposed.

Keywords: quality management, improving competitiveness, consumer requirements, quality indicators, technical level, aesthetic indicators, construction

The results of optimizing the composition of concrete based on aggregates from crushed concrete are presented. With the help of mathematical and natural modeling matched the composition of the expanding agents sulfoaluminate type, the optimal percentage of components of the modified cement required for producing a material with improved performance characteristics, the mathematical model construction and technical properties of the concrete and the kinetics of their changes to take into account the time factor and strength and weathering.

Keywords: mathematical modeling, expanding additive, factor experiment, influencing factors, level of variation, experiment planning matrix

The article presents a program of comprehensive construction and technical expertise of the structures of an industrial building. The features of the construction and technical expertise of the structures of the agricultural warehouse of mineral fertilizers are described. An algorithm of the sequence of actions for the technical expertise of the structures of the object is developed. Measures have been developed to repair and restore the working condition of damaged structures

Keywords: construction and technical expertise, defects, bearing capacity, structural repair, property management

Today, any production process is a means of making a profit for an organization. With this approach, products can be represented as the result of the conversion of input resources into output products. To obtain new information about the product, you can use the cybernetic approach, which allows you not to study the complex physico-chemical phenomena that occur during its production. The cybernetic approach helps to see many different factors that affect the quality of the product. All these factors are important to consider when developing the documentation of the quality management system (QMS). The main task of the QMS is to prevent the influence of negative factors on the quality of the goods. This problem can be solved with a tool called “Failure Type and Effects Analysis (FMEA)”. In the article, with the aim of introducing in the production of building products and structures, the cybernetic model "black box" was considered. Also presented is an analysis of the types and consequences of nonconformities (FMEA analysis), which allows you to see the most significant causes of nonconformities and develop corrective measures for them. The article was published as part of the implementation of the program of the International Forum "The Poor May 1945"

Keywords: quality, cybernetics, defect, analysis, QMS, metal, fencing, construction, products, FMEA.

The poor quality of construction products is one of the main problems of the construction industry. A defect may occur at any stage of the product life cycle. The reputation of a company and its place in the market depends on how the company has established the process of management of non-conforming products and a dialogue with the consumer. In this article the method of management of quality ""8D"" which is capable to reveal not only the reasons of failures, but also to prevent their emergence further is considered, that is realizes one of the principles of quality management – continuous improvement. The article was published as part of the implementation of the program of the International Forum ""Victorious May 1945"".

Keywords: Quality management system, Monitoring, Efficiency, Audit, Corrective actions, Regulations, Construction, Technique, Indicator

The results of the investigation of the structure of the concrete, modified by the additive expanding, on the combined aggregate, which is a natural crushed stone mixed with crushed concrete, are presented. The study of the properties and regularities of the formation of the concrete structure is simultaneously a method of controlling their production. Regularities and reasons for the change (decrease) in the quality indices of concretes with a combined aggregate are established. Investigation and normalization of the properties of concretes on combined aggregates will allow using them along with traditional structural concrete.

Keywords: recycling, combined filler, contact area, structure, defects, durability

The calculation of the stress-strain state of the digital carrier panel antenna array mounted on the ship's match. Calculations are performed in the static case, when different types of pitching at a constant angular speed and variable angular speed. It is shown that the effect of roll has a significant influence on the stress-strain state of the panel, and its account at a variable angular velocity is a prerequisite for carrying out these calculations

Keywords: "carrier board, the pitching of the ship, the angular velocity, angular acceleration, stress, strain, statistics "

The article provides a classification of defects in ceramic bricks, and use a checklist for quality data collection and analysis for quality control

Keywords: Ceramic brick, defects, statistics, checklist, quality, technology, management