Effect of the addition of organic wastes (cork powder, nut shell, coffee grounds and paper sludge) in clays to obtain expanded lightweight aggregates

  1. Carlos Javier Cobo-Ceacero
  2. José Manuel Moreno-Maroto
  3. Marta Guerrero-Martínez
  4. Manuel Uceda-Rodríguez
  5. Ana B. López
  6. Carmen Martínez García
  7. Teresa Cotes-Palomino
Journal:
Boletín de la Sociedad Española de Cerámica y Vidrio

ISSN: 0366-3175

Year of publication: 2023

Volume: 62

Issue: 1

Pages: 88-105

Type: Article

More publications in: Boletín de la Sociedad Española de Cerámica y Vidrio

Metrics

JCR (Journal Impact Factor)

(Indicator corresponding to the last year available on this portal, year 2022)
  • Year 2022
  • Journal Impact Factor: 3.4
  • Journal Impact Factor without self cites: 3.3
  • Article influence score: 0.43
  • Best Quartile: Q1
  • Area: MATERIALS SCIENCE, CERAMICS Quartile: Q1 Rank in area: 6/29 (Ranking edition: SCIE)

SCImago Journal Rank

(Indicator corresponding to the last year available on this portal, year 2022)
  • Year 2022
  • SJR Journal Impact: 0.465
  • Best Quartile: Q2
  • Area: Industrial and Manufacturing Engineering Quartile: Q2 Rank in area: 136/364
  • Area: Mechanics of Materials Quartile: Q2 Rank in area: 171/394
  • Area: Ceramics and Composites Quartile: Q2 Rank in area: 54/125

Scopus CiteScore

(Indicator corresponding to the last year available on this portal, year 2022)
  • Year 2022
  • CiteScore of the Journal : 4.4
  • Area: Industrial and Manufacturing Engineering Percentile: 67
  • Area: Mechanics of Materials Percentile: 65
  • Area: Ceramics and Composites Percentile: 55

Journal Citation Indicator (JCI)

(Indicator corresponding to the last year available on this portal, year 2022)
  • Year 2022
  • Journal Citation Indicator (JCI): 0.67
  • Best Quartile: Q1
  • Area: MATERIALS SCIENCE, CERAMICS Quartile: Q1 Rank in area: 6/30

Abstract

Four organic solid wastes (coffee grounds, ground nut shell, paper money sewage sludge and cork powder) have been investigated as bloating inducing agents in lightweight aggregate (LWA) manufacturing when mixed in small proportions (2.5wt.%) with three types of clays. The pellets obtained were fired in a rotary kiln at the maximum feasible temperature for 4min. A similar impact was observed both in the working conditions and in the properties of the LWAs, showing that the differences between said residues are not as decisive as those of the clays to which they are added. The organic wastes have played a crucial role in achieving reducing conditions inside the aggregate. Thus, their addition has led to substantial improvements both from an operational point of view, lowering the working temperature, and from a technological perspective, favoring bloating and the development of a highly porous and lightweight structure. Leachate studies have shown that the LWAs meet the regulatory limits. The outcomes of this investigation show that, in line with the precepts of the Circular Economy, the recovery of organic wastes of different nature can have a place in the production of environmentally friendly LWAs.