Publication detail

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.

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

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",
  issn="2352-7102",
  url="https://www.sciencedirect.com/science/article/pii/S2352710220335518"
}