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Information × Registration Number 0211U004795, 0109U003742 , R & D reports Title RESEARCH-AND-DEVELOPMENT CONCRETES IS WITH MIONECTIC EXOTERMAL PROCESSES FOR REPORT OF MASSIVE BUILDINGS OF A TRANSPORT SETTING popup.stage_title Head Oleksandr Mikolaevich Pshinko, Registration Date 02-03-2011 Organization Dniepropetrovsk National University of Railway Transport named after Academician V. Lazaryan popup.description2 A research object is cement and cement system, concretes of massive buildings in the period of hardenings . Purpose of work - to conduct research of exotermic processes of cement in the period of hydratation and hardening, with the purpose of adjusting of determination of ways of diminishing of exotermic processes of cement for the receipt of nondefective concretes of massive transport buildings. Research methods - analytical, experimental. Expedience of development of concretes with mionectic exotermic processes is arrived at adjusting of тexotermic processes of cement on the stage of hardening which diminishes the risk of origin of deformations forming of cracks at hardening of concrete of massive buildings of a transport setting. Adjusting of this factor on the stage of making of concrete enables to get a nondefective concrete, that was promoted longevity of building, will decrease expenses on содержание and permanent repairs of massive transport buildings. Research of exotermic processes in cement which is used for this industry will allow to define the ways of it was diminished and to conduct adjusting at application in massive transport buildings. The analysis of production and application of low heart cements is conducted. Their descriptions and the basic requirements are resulted to application in specific terms. Chemical and mineralogical composition of cement and adjusting way is considered their exotermic processes in the process of production. The choice of pre-product and methods of research of exotermic processes of cement is conducted in the process of hydratation and hardening of the cement system and concrete. The processes of exotermic processes of select cement are investigational in the process of gelation in presence chemical additions. The ways of diminishing of exotermic processes of cement are set in the concretes of massive buildings. The results of NIR are inculcated in the production of massive reinforced-concrete buildings of a transport setting. Prognosis suppositions in relation to development of research object are a search of composition of concrete with minimum exotermic processes. Product Description popup.authors Громова О. В. Краснюк А. В. Пшінько П. О. Щербак А. С. popup.nrat_date 2020-04-02 Close