Overburden Recycling in Manufacture of Composite Materials for Road Construction at Mines

Overburden Recycling in Manufacture of Composite Materials for Road Construction at Mines

The authors discuss feasibility of high-tonnage direct inclusion of overburden in composites for the construction of road layers at mines. It is found that overburden has a strength as per State Standard GOST 23558-94 and the prolonged dedusting effect. The optimal contents of the binder and fly ash...

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Bibliographic Details
Published in:Journal of mining science Vol. 59; no. 1; pp. 167 - 175
Main Authors: Bespolitov, D. V., Konovalova, N. A., Pankov, P. P., Shavanov, N. D.
Format: Journal Article
Language:English
Published: Moscow Pleiades Publishing 01-02-2023
Springer
Springer Nature B.V
Subjects:
Composite materials
Composite materials industry
Construction
Earth and Environmental Science
Earth Sciences
Fly ash
Frost resistance
Geophysics/Geodesy
Geotechnical Engineering & Applied Earth Sciences
Mineral industry
Mineral Resources
Mines
Mining Ecology and Subsoil Management
Mining industry
Overburden
Road construction
Road construction industry
mechanical activation
mine road
overburden
stabilizer
fly ash
composite material
dedusting
waste recycling
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Summary:The authors discuss feasibility of high-tonnage direct inclusion of overburden in composites for the construction of road layers at mines. It is found that overburden has a strength as per State Standard GOST 23558-94 and the prolonged dedusting effect. The optimal contents of the binder and fly ash are 8 and 10% by mass, respectively. Mechanical activation of fly ash for 1 min enlarges its specific surface by 2 times. The frost-resistant composites modified with mechanically activated fly ash and stabilizer (1% by mass) have the strength grades M20–M40.
ISSN:1062-7391
1573-8736
DOI:10.1134/S1062739123010180