PROCESS FOR THE MANUFACTURE OF CEMENT-BONDED BOARD USING BAMBOO, CORN STALKS, CORN HUSKS AND OTHER AGRICULTURAL RESIDUES
Field / Industry: Housing/Construction
Patent Number / Registration Number: 2-2012-000278
Status of Application: Granted
Brief Description / Features of the technology:
The present utility model provides process for the manufacture of cement-bonded boards using bamboo (waste or non-waste), corn stalks, corn husks and other agricultural residues. Shredded bamboo or excelsior or sliver is mixed with conr stalks or corn husks or any agricultural residues and bonded with a general purpose Portland cement. The mixing ration of cement: bamboo: corn stalks can be varied from 50-70 (cement): 20-40 (bamboo): 5-10 (corn stalks). The mixtures of cement: bamboo: corn stalks with water are densified by pressing them onto a hydraulic press for 18 to 24 hours at sustained pressure. The boards are then cured and conditioned for at least 28 days prior to use. The final board density ranges from 0.60 g/cc to 1.0 g/cc. Board size ranges from 300 mm x 300 mm (approximately1 ft x 1 ft – laboratory size) to 610 mm x 2440 mm (approximately 2 ft x 8 ft – commercial size) with final board thickness ranging from 8 to 50 mm. The board is used as housing components such as panelling (exterior and interior), ceiling, partition walls, eaves.
Problem Addressed:
- To expand the raw material base for composite board and minimize the use of wood.
Advantages:
- No emission of formaldehyde.
- Not a health hazard unlike boards that are bonded with petroleum-based adhesives
Inventor/s:
Dwight A. Eusebio;
Nestor S. David;
Grecelda A. Eusebio;