Study case about the production of masonry concrete blocks with CDW and kaolin mining waste

• Type: Article in International Scientific Journal
• Date: 2021-12-23

Authors

Felipe Bastos (Author) FEUP; Adeildo Cabral (Author) Other; Perboyre Alcântara (Author) Other; Lino Maia (Author) FEUP

Journal

Title: AIMS Materials Science

Vol. 8

Pages: 990-1004

ISSN: 2372-0484

Publisher: AIMS Press

Indexing

ISI Web of Knowledge - 0 Citations

Scopus - 0 Citations

Scientific classification

CORDIS: Technological sciences > Engineering > Civil engineering > Concrete engineering

FOS: Engineering and technology > Civil engineering

Other information

Authenticus ID: P-00W-4XQ

DOI: 10.3934/matersci.2021060

Abstract (EN): The worldwide generation of construction and demolition waste is about 30% to 35% of the total solid waste produced annually. In addition, the extraction of minerals leaves a high-grade environmental liability with tailings, such as kaolin clay, Brazil being one of the countries with the largest deposits and production of this mineral in the world. The kaolin clay extraction serves several industries such as ceramics, crockery, and paper, among others. The objective of this work is to insert these two wastes as raw material of construction elements, specifically masonry concrete blocks, thus giving an end to the residues, demonstrating their reutilization potential. Here, blocks were manufactured with replacement of natural aggregates, stone powder, and sand, by construction and demolition waste and of kaolin clay waste. The replacement percentages were up to 34% and 16%, respectively. The blocks made with pneumatic vibration compacting procedure presented strength beyond than what is established by norm, thus giving a favorable perspective of use for these residues as building elements.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 15