Hemp bast or long fibre and hurds or inner short fibre can be processed and used with existing technology in construction. The hemp stalk can be incorporated into building materials straight from the field. Hemp fibre added to concrete increases tensile and compressive strengths, reduces shrinkage and cracking.
The demand for renewable raw materials is increasing. Currently many companies produce non-woven products like mats for insulation and car/vehicle composites based mainly on flax but increasingly now on hemp fibres. Hemp fibres have excellent potential - they can reinforce plastics, substitute mineral fibres, be recycled, can be grown ecologically, and have no waste disposal problems. A range of products can be derived from non-woven mats for a range of uses: insulation, filters, geotextile, growth media, reinforced plastics and composites.
Processing Hemp Stalk
Natural fibre composites (NFCs) are formulated from a blend of natural fibres such as kenaf, hemp, flax, jute and sisal, and thermoplastic polymers. NFCs are approximately 25 percent stronger than wood fibre reinforced thermoplastics and have none of the negative handling or environmental issues associated with glass fibre.
Copyright 2005 - Last Updated October 2005