Composite material based on rape straw and environmentally friendly adhesive.

The utilization of agricultural secondary products such as straw or shive can provide a wide range of possible applications in building composites and concurrently decrease the environmental burden. The most frequently studied material of this type is hemp concrete consisting of shive and mineral binder. The use of bio-concrete is though limited by its low compressive strength, which does not reach 1 MPa in most cases. This paper is focused on the design of a new composite material based on bone glue modified with sodium lignosulfonate as eco-friendly binder and rape straw as filler. The experimental results make it possible to identify the optimal straw : bone glue : sodium lignosulfonate ratio. [ABSTRACT FROM AUTHOR]