Detail publikačního výsledku

A method to prepare a high-strength building material from press-formed phosphogypsum purified with waste zeolite

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

Anglický název

A method to prepare a high-strength building material from press-formed phosphogypsum purified with waste zeolite

Druh

Článek WoS

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.

Anglický 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;

Klíčová slova v angličtině

Phosphogypsum; Zeolite; Press-forming; Compressive strength; Phosphate adsorption;

Autoři

FORNÉS, I.; VAIČIUKYNIENĖ, D.; NIZEVIČIENE, D.; DOROŠEVAS, V.; DVOŘÁK, K.

Rok RIV

2021

Vydáno

01.02.2021

Nakladatel

Elsevier

Místo

Nizozemí

ISSN

2352-7102

Periodikum

Journal of Building Engineering

Svazek

2021

Číslo

34

Stát

Nizozemsko

Strany od

1

Strany do

10

Strany počet

10

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",
  url="https://www.sciencedirect.com/science/article/pii/S2352710220335518"
}

Dokumenty

ID 165821_doi10.1016j.jobe.2020.101919
SKV_165821_Justification