Study of Moulding Sands to Create Three-Layer Magnesium Concrete
Miryuk O.
1 January 2024Sciendo
Environmental and Climate Technologies
2024#28Issue 1453 - 463 pp.
The article is devoted to the problem of creating energy-efficient building materials for enclosing structures. The aim of the research is to develop a recipe and a method for moulding sands placing to create heat-insulating concrete of a multilayer structure. The three-layer magnesium concrete containing layers of different densities is an object of a scientific research. Compositions of moulding sands for concretes central and surface layers have been developed and studied. Materials specially developed were used as raw materials for moulding sands; they are as follows: composite magnesial binder and porous filler obtained by low-temperature firing of a granular mixture based on sodium liquid glass and thermal energy waste (fly ash from thermal power plants, aluminosilicate microsphere). Possibility of regulating moulding sands properties for concretes central layer by varying the content and fractional composition of porous granules has been shown. There has been proposed the moulding sand for surface layers of three-layer magnesium concrete containing crushed porous sand. The related composition of moulding sands favours with adhesion of concretes different layers. Various technological methods for producing magnesium concrete of a complex structure have been studied. The research reveals technological and operational characteristics of three-layer magnesium concrete obtained by horizontal and vertical deposition of moulding sands.
Aluminosilicate microsphere , caustic magnesite , fly ash from thermal power plants , magnesium moulding sand , multilayer concrete , porous granules
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Rudny Industrial University, Rudny, Kostanay Region, 111500, Kazakhstan
Rudny Industrial University
10 лет помогаем публиковать статьи Международный издатель
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