1.4 Composite Materials

Question 1

Tell me about carbon fibre

Answer 1

made form carbon fibre strands encased in polymer resin

Carbon fibres have high tensile strength

Polymer resin is lightweight and rigid.

uses are: aerospace, vehicles, sports equipment

Question 2

CFRP meaning

Answer 2

Carbon fibre reinforced polymers

Question 3

Tell me about plywood

Answer 3

Sheets of wood glued at 90 degrees so its strong in all directions

outer sheets of wood maay be expensive for a nice finish like birch

uses are: Roofing, flooring, furniture

Question 4

Tell me about concrete

Answer 4

Mde of various aggregates (sand, rock, gravel), cement and water

cement when mixed with water binds the materials

high compressive strength

weak under tension

Question 5

What does GRP stand for

Answer 5

Glass reinforced plastic

Question 6

Tell me about GRP

Answer 6

Composite of glass fibres which are rigid and polymer resin which is lightweight.

Very hard to recycle as once fused the glass and platic cant be separated