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FORNÉS, I. VAIČIUKYNIENĖ, D. NIZEVIČIENE, D. DOROŠEVAS, V. DVOŘÁK, K.
Originální název
A method to prepare a high-strength building material from press-formed phosphogypsum purified with waste zeolite
Typ
článek v časopise ve Web of Science, Jimp
Jazyk
angličtina
Originální abstrakt
The production of by-product phosphogypsum is very problematic. In order to recycle the phosphogypsum into a building material, its harmful acidic impurities (especially the soluble phosphate) should be purified, and the mechanical properties improved. Therefore, in this study, a novel method of processing the phosphogypsum is proposed. It consists in the addition of waste zeolite to adsorb the phosphate impurities, and in the application of press-forming processing to improve the compressive strength of the hardened specimens. The zeolite additive has proven to be an efficacious adsorbent, which reduced the soluble phosphate content by 3.2–7.5 times and surprisingly improved the hydration degree of the phosphogypsum. Moreover, the press-forming of phosphogypsum by applying 15 and 20 MPa pressure produced specimens with a compressive strength over 50 MPa.
Klíčová slova
Phosphogypsum; Zeolite; Press-forming; Compressive strength; Phosphate adsorption;
Autoři
FORNÉS, I.; VAIČIUKYNIENĖ, D.; NIZEVIČIENE, D.; DOROŠEVAS, V.; DVOŘÁK, K.
Vydáno
1. 2. 2021
Nakladatel
Elsevier
Místo
Nizozemí
ISSN
2352-7102
Periodikum
Journal of Building Engineering
Ročník
2021
Číslo
34
Stát
Nizozemsko
Strany od
1
Strany do
10
Strany počet
URL
https://www.sciencedirect.com/science/article/pii/S2352710220335518
BibTex
@article{BUT165821, author="Ignacio Villanón {Fornés} and Danute {Vaičiukynienė} and Dalia {Nizevičiene} and Viktoras {Doroševas} and Karel {Dvořák}", title="A method to prepare a high-strength building material from press-formed phosphogypsum purified with waste zeolite", journal="Journal of Building Engineering", year="2021", volume="2021", number="34", pages="1--10", doi="10.1016/j.jobe.2020.101919", issn="2352-7102", url="https://www.sciencedirect.com/science/article/pii/S2352710220335518" }