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Information × Registration Number 0216U006190, 0114U001609 , R & D reports Title Management properties of concrete used for the construction of a massive undersea facilities popup.stage_title Head Oleksandr Pshinko, Registration Date 12-02-2016 Organization Dniepropetrovsk National University of Railway Transport named after Academician V.Lazaryan popup.description2 Subject of research - concrete properties and their change depending on the influencing factors arising during the construction and operation of the submarine massive sooruzheniy.Obekt studies - concrete and its components, to control the properties in the construction of a massive undersea facilities. The purpose of research - the study and control of the properties of concrete, which is used for the construction of submarine massive constructions by obtaining dependency changes in the characteristics of the concrete from the limited factors (characteristics of the components, the composition of the concrete parameters of the technology), efficient management that would allow regulation of normative documents of the properties of concrete certain conditions for the construction and exploitation is a massive structure in the application of the proposed manufacturing process, or the possibility of its adjustment (simplification process operator-radios, energy savings). Methods of research - analytical, experimental. Integrated management of the properties of concrete is achieved at all production stages of construction from design to laying of concrete through rational and informed choice of materials, components and their appointment ratio in concrete, process control structure formation and solidification, the choice of technological methods of laying concrete. Requirements regarding the concrete mix and concrete with the peculiarities of installation, operation and hardening of massive structures. Special attention is given to research and management and heat cement as the major factor cracking. The above in complex application can reduce the risk of deformation (crack) in the hardening of the concrete massive structures travel destination especially in the underwater area. The regulation of this factor on the stage of manufacture of concrete allows you to get defect-free concrete structures that pidvysyt durability, reduce maintenance costs and current repairs of massive transport facilities. The analysis of the construction of transport technologies, massive hydraulic structures (structures) and developed technological bases laying of concrete in the construction of massive structures. The analysis of the temperature regime hardening concrete surface and underwater massive structures as one of the main factors of the defect-free concrete mass. The analysis of the production and use nyzkotermichnyh cements. Powered their characteristics and basic requirements for use in specific circumstances. We consider the chemical and mineralogical composition of cement and ways of regulating their heat in the production process. The processes of hydration and hardening cements. A choice of starting materials and methods for the study of heat cement during hydration and hardening of cement and concrete systems. The processes of heat cements selected during structure formation in the presence of chemical additives and mineral applications. Scheduled technological and constructive ways to reduce heat cement in concrete massive structures. Product Description popup.authors Афанасьєва Т.І. Вертелецька Л.М. Громова О.В. Зінкевич А.М. Краснюк А.В. Подоляк К.Я. Пристинська В.В. Пшінько П.О. Соловйов А.О. Щербак А.С. popup.nrat_date 2020-04-02 Close