Přístupnostní navigace
E-application
Search Search Close
Publication detail
FORNÉS, I. VAIČIUKYNIENĖ, D. NIZEVIČIENE, D. DOROŠEVAS, V. DVOŘÁK, K.
Original Title
A method to prepare a high-strength building material from press-formed phosphogypsum purified with waste zeolite
Type
journal article in Web of Science
Language
English
Original Abstract
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.
Keywords
Phosphogypsum; Zeolite; Press-forming; Compressive strength; Phosphate adsorption;
Authors
FORNÉS, I.; VAIČIUKYNIENĖ, D.; NIZEVIČIENE, D.; DOROŠEVAS, V.; DVOŘÁK, K.
Released
1. 2. 2021
Publisher
Elsevier
Location
Nizozemí
ISBN
2352-7102
Periodical
Journal of Building Engineering
Year of study
2021
Number
34
State
Kingdom of the Netherlands
Pages from
1
Pages to
10
Pages count
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" }