期刊名称：Vìsnik Pridnìprovsʹkoï Deržavnoï Akademìï Budìvnictva ta Arhìtekturi
印刷版ISSN：2312-2676
出版年度：2016
期号：6
页码：27-36
语种：English
出版社：Prydniprovs'ka State Academy of Civil Engineering and Architecture
摘要：Problem statement.There are numerous cases of destruction of the concrete protective layer of reinforced concrete structures due to atmospheric climate effects characterized by temperature,humidity,concentration of the corrosive gas.A common method of designing the primary protection of reinforced concrete structures has a prescription character.Available quantitative relations of concrete carbonation calculation due to the impact of carbon dioxide do not take into account the temperature and humidity of the environment and are designed for stationary conditions.Under actual conditions,the temperature and humidity of the environment vary depending on the season.It should be kept in mind that the concrete carbonation takes place only during the period with positive temperature and with certain humidity.At the same time,during the negative temperature alternate freezing and thawing of concrete occurs,which increases permeability.Therefore,a quantitative method of designing the primary protection of concrete cover of reinforced structures is necessary,which takes into account physical and chemical process of carbonation of concrete,which is complicated by frosty destruction.Purpose.Development of a quantitative technique of designing the primary protection of concrete protective layer in the atmospheric climate conditions,taking into account carbonization process,seasonal and daily changes in temperature and humidity (on the example of Dnipropetrovsk).Conclusion.A quantitative method of designing the primary protection of concrete reinforced structures in atmospheric climate effects was developed.Theoretical estimation of longevity of concrete protective layer of different thickness,with different contents of cement and water-cement ratio under the criterion of carbonation complicated by frosty destruction.
其他摘要：Постановка проблемы.Известны многочисленные случаи разрушения бетона защитного слоя железобетонных конструкций вследствие атмосферных климатических воздействий,характеризующихся температурой,влажностью,концентрацией агрессивных газов.Общепринятая методика
