With its building infrastructure almost completely destroyed during the military conflict, modern Iraq is facing an urgent need for a number of measures to increase the quality of installation, construction and reconstruction jobs and to reduce timeframes taking into account local and climatic features. To achieve this, the priority task is to develop methods and theoretical recommendations based on the analysis of existing methods for calculating construction timeframes, ones that would most accurately reflect the influence of such factors as cement class, type and an average daily air temperature. The climatic conditions in Iraq impact negatively on the properties of hardened concrete. Specifically, concrete mixture shrinks more rapidly, which entails a change in its physico-mechanical properties and further corrosion of reinforcement bars at joints in monolithic prefabricated housing construction. This paper aims to determine factors that affect construction timeframes and quality for prefabricated reinforced concrete buildings, and to develop a model on the basis of statistical research to determine the concrete hardening time at joints in prefabricated frame housing construction.

The article deals with the organizational and technological features of construction. Currently, based on foreign and domestic experience, a significant number of regulatory and methodological documents have been developed for the use of facade systems, but these works do not fully disclose organizational and technological issues and contain only general recommendations for the production of work. In particular, the existing recommendations for the installation of facade systems, for the most part, describe the constructive solutions of facade systems, technological issues related directly to the installation of the facade system, while not disclosing in sufficient detail the organization of the construction site, the issues of choosing the necessary means of paving, the issues of standardizing the labor intensity of work, issues of quantitative and qualitative selection of the composition of workers for the production of work. The organization of construction production for the installation of hinged facade systems with an air gap during the construction of buildings is associated with coordination with general construction works. Often, construction management projects developed at the design stage are adjusted taking into account the current conditions. These changes can occur both before the start of work and during the production of work. The introduction of organizational and technological changes in the production process of work can lead to a significant decrease in technical and economic indicators. In this regard, it is relevant to resolve the issues of assessment and selection of effective organizational and technological solutions for the device of facade systems.

No abstract