TY - JOUR
T1 - Utilization of demolition wood and mineral wool wastes in wood-plastic composites
AU - Jetsu, Petri
AU - Vilkki, Markku
AU - Tiihonen, Ismo
PY - 2020/6
Y1 - 2020/6
N2 - Wood and mineral wool fractions from demolished buildings were sorted into different categories and processed to the suitable grain size needed for the manufacturing of wood-plastic composites. Processed construction and demolition waste materials mixed with plastics and additives were extruded into hollow test bars using a conical rotary extruder. Test specimens needed for measurements were cut from test bars. The results showed that the mechanical performance of wood-plastic composites based on construction and demolition waste wood, and mineral wool was at a good level and comparable to commonly used wood-plastic composites in decking applications. The highest strength properties of wood-plastic composites were achieved with a plywood fraction and the lowest with materials containing a particle/fibre board fraction. The mechanical performance can be improved by utilizing mineral wool in the formulation of wood-plastic composites. A material mixture containing several wood fractions as well as mineral wool also gave good strength properties. Only a minor reduction in strength properties was measured when recycled plastic was utilized meaning that wood-plastic composites suitable for many types of applications can be produced entirely from recycled materials.
AB - Wood and mineral wool fractions from demolished buildings were sorted into different categories and processed to the suitable grain size needed for the manufacturing of wood-plastic composites. Processed construction and demolition waste materials mixed with plastics and additives were extruded into hollow test bars using a conical rotary extruder. Test specimens needed for measurements were cut from test bars. The results showed that the mechanical performance of wood-plastic composites based on construction and demolition waste wood, and mineral wool was at a good level and comparable to commonly used wood-plastic composites in decking applications. The highest strength properties of wood-plastic composites were achieved with a plywood fraction and the lowest with materials containing a particle/fibre board fraction. The mechanical performance can be improved by utilizing mineral wool in the formulation of wood-plastic composites. A material mixture containing several wood fractions as well as mineral wool also gave good strength properties. Only a minor reduction in strength properties was measured when recycled plastic was utilized meaning that wood-plastic composites suitable for many types of applications can be produced entirely from recycled materials.
KW - Demolition waste mineral wool
KW - Demolition waste wood
KW - Extrusion
KW - Mechanical properties
KW - Wood-plastic composites
UR - http://www.scopus.com/inward/record.url?scp=85087812083&partnerID=8YFLogxK
U2 - 10.31025/2611-4135/2020.13916
DO - 10.31025/2611-4135/2020.13916
M3 - Article
AN - SCOPUS:85087812083
VL - 10
SP - 19
EP - 25
JO - Detritus: Multidisciplinary Journal for Waste Resources & Residues
JF - Detritus: Multidisciplinary Journal for Waste Resources & Residues
SN - 2611-4127
IS - June
ER -