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Radiation induced strength enhancement of sulfur polymer concrete composites based on waste and residue fillers

Piotr SzajerskiInstitute of Applied Radiation Chemistry, Lodz University of Technology, Wroblewskiego 15, 93-590, Lodz, PolandJoanna CelinskaInstitute of Applied Radiation Chemistry, Lodz University of Technology, Wroblewskiego 15, 93-590, Lodz, PolandAndrzej GasiorowskiInstitute of Applied Radiation Chemistry, Lodz University of Technology, Wroblewskiego 15, 93-590, Lodz, PolandRafał AnyszkaInstitute of Polymer and Dye Technology, Lodz University of Technology, Stefanowskiego 12/16, 90-924, Lodz, PolandRadosław WalendziakDepartment of Concrete Structures, Lodz University of Technology, Politechniki 6, 90-924, Lodz, PolandMichał LewandowskiDepartment of Concrete Structures, Lodz University of Technology, Politechniki 6, 90-924, Lodz, Poland

2020en

ABI

Annotatsiya

The behavior and properties of sulfur polymer concrete composites (SPC) based on mineral fillers (industrial waste and residues) were investigated towards potential application under high radiation exposure conditions. The composites were irradiated in a dose range up to 1.5 MGy using Co-60 gamma source. The test specimens were subjected to compressive tests, SEM analysis, capillary water absorption tests, XRD, FTIR and DSC analysis. The obtained results indicate for a high radiation resistance of investigated materials. The irradiated samples exhibit up to 35% higher compressive strength in comparison with the native samples with retaining other parameters unchanged. According to the XRD, FTIR and DSC analyzes, the proposed mechanism laying behind enhancement of mechanical properties of SPC is the sulfur polymer binder amorphization with a possible simultaneous radiation induced polymerization and/or crosslinking. The SPC materials can be considered as promising alternative for hydraulic cement concrete composites, especially in radiation and nuclear technology sectors.

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DOI: 10.1016/j.jclepro.2020.122563

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