HYGRIC AND THERMAL CHARACTERIZATION OF COMPOSITES COUPLING RECYCLED OR RAW BIO-BASED MATERIALS AND STARCH

Author(s): L. M. Thieblesson, F. Collet, S. Prétot, C. Lanos, H. Kouakou, O.Boffoue
Paper category: Proceedings
Book title: Proceedings of the 2nd International Conference
on Bio-Based Building Materials
Editor(s): Sofiane AMZIANE, Mohammed SONEBI and Karine CHARLET
ISBN:
e-ISBN: 978-2-35158-192-6
Publisher: RILEM Publications SARL
Publication year: 2017
Pages: 420-426
Total Pages: 7
Language : English

Abstract: This study aims to design cheap and environmentally friendly materials well suited for ceiling or
interior walls of buildings. This project focuses on valorization of raw materials available in Ivory
Coast. Developed composites are realized with eco-materials issued from local recycled or bio-
based materials: recycled paper (granules or cellulose wadding) and wood fiber. Aggregates or
fibers are bonded with starch. This study investigates several water to starch ratio for each kind
of load and two loads to binder ratio are also considered for paper granules. After production,
hygric and thermal characterization of the composites is performed. At dry state, the densities of
produced composites range from 300 to 600 kg/m3 and thermal conductivities range from 0.09 to
0.17 W/m/K. Moisture buffer values of the composites are measured as defined in the Nordtest
protocol. All composites are at least good hygric regulators according the Nordtest project
classification. When the paper granule content increases, the composites reach excellent hygric
regulator levels whereas their thermal conductivities increase.

Online publication :2017
Publication type :full_text
Public price (Euros) : 0.00