Microstructure and compressive strength of gypsum-bonded composites with papers, paperboards and Tetra Pak recycled materials

Autor: Dafni Foti, Stergios Adamopoulos, Eleni Voulgaridou, Elias Voulgaridis, Costas Passialis, Stephen Osakue Amiandamhen, Geoffrey Daniel
Jazyk: angličtina
Rok vydání: 2019
Předmět:
Zdroj: Journal of Wood Science, Vol 65, Iss 1, Pp 1-8 (2019)
Druh dokumentu: article
ISSN: 1435-0211
1611-4663
DOI: 10.1186/s10086-019-1821-5
Popis: Abstract The incorporation of recycled papers, paperboards and Tetra Pak as filling materials in brittle matrices presents an interesting approach in the utilization of waste materials for building construction. This paper examines the compressive strength and microstructure of gypsum-bonded wastepaper-based composites. Recycled wastepaper of various types (office paper, magazine paper and newspaper), cardboards, paper boxes and Tetra Pak were shredded to short length strips of about 4 × 18 mm. The shredded materials were used as filling materials in natural gypsum in a ratio of 1:3 (v/v), and water was added to the mix. The paste was formed in cylindrical samples measuring 10 cm in length and 5 cm in diameter. Seven different types of composites were produced depending on the material used. The composite products with newspaper and magazine paper had significantly lower density and compressive strength (p
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