Binders for pressed products based on phosphogypsum waste

Leonid Dvorkin; Oleh Bordiuzhenko

doi:10.5937/zasmat2204437D

Autori

Leonid Dvorkin National University of Water and Environmental Engineering, Rivne, Ukraine Autor
Oleh Bordiuzhenko National University of Water and Environmental Engineering, Rivne, Ukraine Autor

DOI:

https://doi.org/10.5937/zasmat2204437D

Ključne reči:

dihidrat fosfogips, veziva, kompresija, vodootpornost, čvrstoća

Apstrakt

Članak je posvećen pitanjima dobijanja presovanih građevinskih materijala na bazi dihidrata fosfogipsa. Dihidrat fosfogips nakon mehaničke aktivacije u kugličnom mlinu stiče sposobnost stvrdnjavanja u presovanim uzorcima. Nakon aktiviranja dihidrata fosfogipsa u kugličnom mlinu i njegovog presovanja pod pritiskom od 30 MPa, čvrstoća uzoraka se povećava za 6...8 puta u poređenju sa neaktiviranim uzorcima i dostiže 25...30 MPa. Utvrđen je uticaj različitih hemijskih dodataka na vezivna svojstva aktiviranog fosfogipsa i prikazane su mogućnosti poboljšanja vodootpornosti i povećanja drugih svojstava koja karakterišu ovaj materijal. Proučava se uticaj agregata na građevinsko-tehnička svojstva veštačkog kamena od fosfogipsa i osobenosti njegove strukture i promene pod uticajem različitih faktora.

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