Presentation Transcript
Slide 1:ABHISHEK DHANDIA
and
KASSANDRA BARTLETT GLASS
Slide 2:Divided two groups: oxide glass and non-oxide glass
Oxide glass- contains oxide which is most commonly used
Non-oxide glass- made from compounds that contain no oxides instead contains sulfide or metals Introduction on Glass
Slide 3:72% of silica from sand
13% sodium oxide from soda ash
11% calcium oxide from limestone
4% others Composition of Glass
Slide 4:Hard
Brittle
Transparent (Windows, bottles, eyewear)
High durability
unreactive Characteristics of Glass
Slide 5:Easy to melt and shape
Reasonably strong
Inexpensive
Can be easy to recycle if separated according to color. Soda Lime Glass
Slide 6:A safety glass which holds together when shattered
Held in place by an interlayer (polyvinyl butyral) which is sandwiched between 2 glass layers
Interlayer has high strength and prevent glass from being broken into large sharp pieces instead creating a spider web cracking Laminated Glass
Slide 7:Is safety glass that shatters into small cuboids fragments when broken
Is strong and there is enhanced thermo resistance compared to a normal glass. Toughened Glass
Slide 8:In beams and columns
“fins” for wind reinforcement, which are visible in many glass frontages
Glass in buildings can be of a safety type, including wired, heat strengthened (tempered) and laminated glass
Glass fibre insulation is common in roofs and walls Glass as a Structural Material
Slide 9:Bibliography http://en.wikipedia.org/wiki/Glass
http://da.velux.com/Achitechts_Projects/Articles/Articles-issue1/Glass-as-a-structural-material/
http://209.85.175.104/search?q=cache:mhteSFH7pskJ:www.yuanch.com/pdf/SchottLithotec_MB%2520Data.pdf+glass+characteristics&hl=en&ct=clnk&cd=1&gl=hk&client=firefox-a