A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Impact of water flooding on hard cement-recycled polystyrene composite immobilizing radioactive sulfate waste simulate
Graphical abstract Display Omitted
Highlights Improvement of Portland cement paste by recycled polystyrene. Mechanical stability of cement-recycled polystyrene composite. Water-flooding of the hard cement-recycled polystyrene composite. Immobilization of radioactive sulfate waste by cement-recycled polystyrene composite.
Abstract Radioactive sulfate wastes are generated from boiling water reactors (BWRs) and should be immobilized before their disposing to avoid the back release of their hazardous components under the impact of water flooding incident in the disposal site, which gives rise of secondary contamination at the surrounding area. A cement-polymer composite formulated from recycled post-consumer polystyrene foam waste and Portland cement was proposed as an incorporating matrix for solidification/stabilization (S/S) of sulfate waste simulate in laboratory scale experiments. To imitate a water-flooding incident, the reached solidified waste form was completely immersed in three types of water, namely, tap-, ground-, and seawater for increasing periods up to 420 days. Compressive strength, porosity and mass change of the solidified waste samples were evaluated at the end of various immersion periods. Besides, FT-IR, XRD, SEM with EDX analyses were performed to follow the internal changes of the product post the immersion. Based on the data obtained, it could be concluded that the comparative stability of the nominated composite under the impact of water flooding incident candidates it as an acceptable matrix for immobilizing the radioactive sulfate wastes. In addition to its stability, the formulated composite have the advantage of upgrading post-consumer non-biodegradable polystyrene foam waste, therefore, thus introducing a sustainable technique and saving landfill area by using significant amounts of one of the major municipal solid wastes.
Impact of water flooding on hard cement-recycled polystyrene composite immobilizing radioactive sulfate waste simulate
Graphical abstract Display Omitted
Highlights Improvement of Portland cement paste by recycled polystyrene. Mechanical stability of cement-recycled polystyrene composite. Water-flooding of the hard cement-recycled polystyrene composite. Immobilization of radioactive sulfate waste by cement-recycled polystyrene composite.
Abstract Radioactive sulfate wastes are generated from boiling water reactors (BWRs) and should be immobilized before their disposing to avoid the back release of their hazardous components under the impact of water flooding incident in the disposal site, which gives rise of secondary contamination at the surrounding area. A cement-polymer composite formulated from recycled post-consumer polystyrene foam waste and Portland cement was proposed as an incorporating matrix for solidification/stabilization (S/S) of sulfate waste simulate in laboratory scale experiments. To imitate a water-flooding incident, the reached solidified waste form was completely immersed in three types of water, namely, tap-, ground-, and seawater for increasing periods up to 420 days. Compressive strength, porosity and mass change of the solidified waste samples were evaluated at the end of various immersion periods. Besides, FT-IR, XRD, SEM with EDX analyses were performed to follow the internal changes of the product post the immersion. Based on the data obtained, it could be concluded that the comparative stability of the nominated composite under the impact of water flooding incident candidates it as an acceptable matrix for immobilizing the radioactive sulfate wastes. In addition to its stability, the formulated composite have the advantage of upgrading post-consumer non-biodegradable polystyrene foam waste, therefore, thus introducing a sustainable technique and saving landfill area by using significant amounts of one of the major municipal solid wastes.
Impact of water flooding on hard cement-recycled polystyrene composite immobilizing radioactive sulfate waste simulate
Saleh, Hosam M. (author) / Eskander, Samir B. (author)
Construction and Building Materials ; 222 ; 522-530
2019-06-21
9 pages
Article (Journal)
Electronic Resource
English
Polymer-cement composite based on recycled expanded polystyrene foam waste
| Tema Archive | 2011
Polymer-cement composite based on recycled expanded polystyrene foam waste
| British Library Online Contents | 2011
Performance of cement mortar made with recycled high impact polystyrene
| Online Contents | 2012