Composition and Properties of Non-Fired Fly Ash Gravel and Concrete on Its Basis

Non-fired fly ash gravel was obtained on the basis of fly ash of thermal power plant № 5 of JSC "SIBEKO", 15 % of Portland cement and the hardening accelerator. The gravel of 5-20 mm fraction and 6 months' air-moist curing is 900 density grade, P300 strength grade, frost-resistance gr...

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Bibliographic Details
Published inIOP conference series. Materials Science and Engineering Vol. 481; no. 1; pp. 12050 - 12054
Main Authors Kapustin, F L, Kokorina, D V, Fomina, I V
Format Journal Article
LanguageEnglish
Published Bristol IOP Publishing 11.03.2019
Subjects
Cement
Composition
Density
Fly ash
Frost resistance
Gravel
Lightweight concretes
Mechanical properties
Physical properties
Portland cements
Superplasticizers
Thermal power plants
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Summary:Non-fired fly ash gravel was obtained on the basis of fly ash of thermal power plant № 5 of JSC "SIBEKO", 15 % of Portland cement and the hardening accelerator. The gravel of 5-20 mm fraction and 6 months' air-moist curing is 900 density grade, P300 strength grade, frost-resistance grade - F35. The compositions of cement concretes of strength class from B10 to B25 were established and their physical and mechanical properties were determined using obtained non-fired fly ash gravel. They belong to the lightweight concrete according to the density (1817-1857 kg/m3). The introduction of superplasticizer SP-1 reduces water demand of concrete mixture and increases strength of concrete on fly ash gravel.
ISSN:1757-8981
1757-899X
1757-899X
DOI:10.1088/1757-899X/481/1/012050