Are you done with the paper yet, dear? (Senior Division).
The purpose of this project is to design and construct a durable,
effective beam which can be used for construction. This type of beam
will be made from recycled materials such as newspaper. I hypothesized
that I can design and construct a beam equivalent in strength and
purpose to conventional materials. This will reduce cost and the need
for virgin woods. Blend shredded newspaper with water. Combine
cornstarch and water and cook to form a binding medium. Combine
newspaper and binding medium in a blender. Squeeze mixture. Press into
molds. Place molds into the oven and cook until dry. Test the beams for
strength using a three point bending test and a four point bending test.
Test using a torsion, cantilever, shear, and compression test. I
conclude that I was able to successfully design and construct a beam
made from recycled newspaper which is equivalent in strength to virgin
woods. After completing these test, I then compared the data to virgin
woods. The beams modulus of elasticity compared to Oak and Douglas Fir which proved my hypothesis correct.
Natalie Barnes, Woodlin School.