Radiolytic Modification of Polymer Fillers for Cement Compositions

The influence of preliminary irradiation (3-MeV electron beam) of powdered (≤0.2 mm) synthetic polymers (polyethylene, polypropylene, polyvinyl chloride, polycarbonate, polyethylene terephthalate, or polystyrene) on the compressive strength of cement–sand–polymer compositions has been studied. The s...

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Bibliographic Details
Published in:High energy chemistry 2024-02, Vol.58 (1), p.107-111
Main Authors: Kholodkova, E. M., Nevolin, Yu. M., Shapagin, A. V., Grafov, O. Yu, Ponomarev, A. V.
Format: Article
Language:English
Subjects:
Aqueous solutions
Chemistry
Chemistry and Materials Science
Composition
Compressive strength
Electron beams
Irradiation
Oxidation
Physical Chemistry
Polyethylene terephthalate
Polymers
Polystyrene resins
Polyvinyl chloride
Radiation Chemistry
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Summary:The influence of preliminary irradiation (3-MeV electron beam) of powdered (≤0.2 mm) synthetic polymers (polyethylene, polypropylene, polyvinyl chloride, polycarbonate, polyethylene terephthalate, or polystyrene) on the compressive strength of cement–sand–polymer compositions has been studied. The surface oxidation of the powders was ensured by irradiation in air or in a water–air mixture. It was shown that the oxidation of the powder in an aqueous medium, as well as the post-radiation alkalization of the powders, contributed to a higher strength of the composites. Oxidation of the powder in air led to a relative decrease in the strength of the composite due to a higher yield of acid formation.
ISSN:0018-1439
1608-3148
DOI:10.1134/S0018143924010090