Chemical analyses of lignocellulosic materials residue for cement panels reinforcement
¹Federal University of Lavras, Department of Agricultural Engineering, Campus
Universitário, PO Box 3037, Lavras, Minas Gerais, Brazil
²Federal University of Lavras, Department of Engineering, Campus Universitário,
PO Box 3037, Lavras, Minas Gerais, Brazil
³University of Firenze, Department of Agriculture, Food, Environment and Forestry
(DAGRI), Via San Bonaventura 13, IT50145 Firenze, Italy
Abstract:
The use of lignocellulosic material residue in cement composites is on the rise as sustainable building materials in most developing countries. Besides, this alternative is seen as a good option for new cement panels formulations for indoor applications. Thus, the current paper aims to evaluate de chemical properties of five potential lignocellulosic materials residues to be used for cement panels reinforcement: Eucalyptus, sugarcane bagasse, coconut fibre, coffee rusk, and banana pseudostem. The following physical properties of the lignocellulosic materials were evaluated: lignin, extractives, ash, and holocellulose. To evaluate the similarity of the chemical composition of the lignocellulosic materials, Hierarchical Cluster Analysis (HCA) was used identified by using Ward’s method of cluster analysis. These compositions were grouped by dendrograms in which the similarity of these data was qualified. It was observed that there were statistical differences among all types of lignocellulosic materials related to the chemical composition. Coconut showed the smallest amount of extractives, and sugar cane the most significant amount. Eucalyptus and coffee husk presented the most similar chemical composition. All of the evaluated materials could be used in fibre cement production for indoor applications.
Key words:
cementitious composites, chemical properties, dendrograms, hierarchical cluster analysis