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Information × Registration Number 0209U002389, 0107U000806 , R & D reports Title The theoretical basis and experimental investigations of modified concretes for floating transport structures. popup.stage_title Head Dorofeev V.S., Registration Date 10-02-2009 Organization The Odessa State Akademy of Building and Architecture popup.description2 The influence of environment on the shipbuilding concretes in the process of exploitation is analyzed. It is proved that durability of concrete in thin-walled floating and hydro technical structures, which work in the conditions of humidity, temperature, pressure and salinity gradients is determined with waterproof in a submarine part of a structure, with frost-resistance in above water parts. It is shown that to reduce gradients of local symbol changing of humidity deformations is possible at the expense of creating of structure with capillaries of the like size at the reducing of general porosity. Introduction of complex modifiers which consist of plasticizers, kolmatur additives and fillers allows to attain this. Reinforcing of material allows to redistribute deformations on volume of structure by the fiber not subjected to corrosion. Application of complex modifiers and fillers reduces opened porosity on 10-20 % and average size of pores in 1.5-2 times, that increases waterproof in 1.5-2 times andfrost-resistance on 150-200 cycles in salt water. The fine-grained modified concretes and fiber concrete of increasing durability are obtained and established. Speed-up methods of determination of frost and corrosive resistance of shipbuilding concretes on changing of its damage are worked out. Product Description popup.authors popup.nrat_date 2020-04-02 Close