Original scientific paper

Modified expanded clay lightweight concretes for thin-walled reinforced concrete floating structures

Andrey Mishutn ; Odesa State Academy of Civil Engineering and Architecture, Odesa, Ukraine
Sergii Kroviakov orcid.org/0000-0002-0800-0123 ; Odesa State Academy of Civil Engineering and Architecture, Odesa, Ukraine
Oleg Pishev ; Odesa State Academy of Civil Engineering and Architecture, Odesa, Ukraine
Božo Soldo ; University North, University Center Varaždin, Varaždin, Croatia

Abstract

Reinforced concrete floating structures have much more durable metal structures and do not require frequent repairs. Heavy and lightweight shipbuilding concrete is used for these structures. Floating structures are operated in difficult climatic conditions. Properties of modified expanded clay concrete for thin-walled reinforced floating structures were investigated. The experiment was carried out according to the 3-factor optimal plan. Concretes with the strength of up to 43 Mpa, with water resistance up to W12 and the average density of up to 1750 kg/m3 were obtained. Due to the use of expanded clay lightweight concrete, the carrying capacity of a ship, in particular, the floating dock, is increasing, and the comfort of people and technological equipment is increasing. Regulations for the technology of manufacturing modified shipbuilding expanded clay lightweight concrete for the construction of thin-walled floating structures and floating docks were developed and approved. The results of the research were used in the development of the national standard of Ukraine "Shipbuilding Concrete".

Keywords

expanded clay; floating structures; lightweight concrete; plasticizer; silica fume; water resistance

Hrčak ID:

186657

URI

https://hrcak.srce.hr/186657

Publication date:

15.9.2017.

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