Home About Browse Search
Svenska


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

Foti, Dafni and Adamopoulos, Stergios and Voulgaridou, Eleni and Voulgaridis, Elias and Passialis, Costas and Amiandamhen, Stephen Osakue and Daniel, Geoffrey (2019). Microstructure and compressive strength of gypsum-bonded composites with papers, paperboards and Tetra Pak recycled materials. Journal of Wood Science. 65 :42 , 1-8
[Journal article]

[img] PDF - Published Version
Available under License Creative Commons Attribution.

1MB

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 x 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 < 0.05) than the others. However, the differences were small to have any practical importance. The density values ranged between 1.26 and 1.34 g/cm(3), and compressive strength was the lowest (4.48 N/mm(2)) in the gypsum-magazine paper composites and the highest (6.46 N/mm(2)) in the gypsum-Tetra Pak I composites. Since the samples produced in this study exhibited adequate compressive strength, the products could be suitable for such applications as interior walls in building constructions. Scanning electron microscopy (SEM) examination of the fractured surfaces revealed needle-like structures of gypsite crystals surrounding the fibers, which indicates good adhesion between the hydrophobic matrix and lignocellulosic fibers.

Authors/Creators:Foti, Dafni and Adamopoulos, Stergios and Voulgaridou, Eleni and Voulgaridis, Elias and Passialis, Costas and Amiandamhen, Stephen Osakue and Daniel, Geoffrey
Title:Microstructure and compressive strength of gypsum-bonded composites with papers, paperboards and Tetra Pak recycled materials
Year of publishing :2019
Volume:65
Number:42
Page range:1-8
Number of Pages:8
Publisher:Springer
ISSN:1435-0211
Language:English
Publication Type:Journal article
Refereed:Yes
Article category:Scientific peer reviewed
Version:Published version
Copyright:Creative Commons: Attribution 4.0
Full Text Status:Public
Subjects:(A) Swedish standard research categories 2011 > 4 Agricultural Sciences > 401 Agricultural, Forestry and Fisheries > Wood Science
Keywords:Compressive strength, Density, Natural gypsum, Recycled wastepaper, Tetra Pak, SEM
URN:NBN:urn:nbn:se:slu:epsilon-p-101648
Permanent URL:
http://urn.kb.se/resolve?urn=urn:nbn:se:slu:epsilon-p-101648
Additional ID:
Type of IDID
DOI10.1186/s10086-019-1821-5
Web of Science (WoS)000483579900001
ID Code:16363
Faculty:S - Faculty of Forest Sciences
Department:(S) > Department of Forest Biomaterials and Technology (from 131204)
Deposited By: SLUpub Connector
Deposited On:03 Oct 2019 08:38
Metadata Last Modified:03 Oct 2019 08:38

Repository Staff Only: item control page

Downloads

Downloads per year (since September 2012)

View more statistics

Downloads
Hits