A2/ A3- Sand & Glass Flashcards
What are the 3 types of sand?
1.
2.
3.
- Building sand.
- Sharp sand.
- Silver sand.
What is building sand used for?
Brickwork.
What is sharp sand used for?
Concrete.
What are 2 characteristics of sharp sand grains making it good to be used in concrete:
1.
2.
- Coarse.
- Jagged.
What is silver sand used for?
Grout between floor tiles.
What are the 3 types of glass?
1.
2.
3.
- Float glass.
- Laminated glass.
- Toughened glass.
Sand is combined with minerals and _________________ at temperatures of 1700°C.
melted in a furnace
What is the main ingredient of glass?
Silica (sand).
What type of glass is for general purpose?
Float glass.
What type of glass is for safety purposes?
Laminated glass.
How is laminated glass shatterproof?
Because glass _________ are ___________ to a shatterproof __________.
layers
bonded
polymer
Windows of a new restaurant are made from laminated glass.
Laminated glass is ___________. So ____________ can enter the restaurant for customers to look outside the windows.
transparent
natural light
Why is toughened glass tempered?
To increase its ____________ and ____________________.
strength
impact resistance
What are the 3 types of glass finishes?
1.
2.
3.
- Clear finish.
- Obscured finish.
- Smart finish.
What is a smart finished glass?
Glass that switches between a clear and obscured finish.
What is a clear finished glass used for?
General windows.
What is a obscured finished glass used for?
Bathroom windows.
What is a smart finished glass used for?
Meeting rooms.
What are 2 benefits of using smart glass for a mixed-used building including an office:
- ________________ can be controlled to provide ____________ within office spaces.
- _________________________ because of _______________________.
Transparency
privacy
Increased energy savings
light absorption
Why would float glass not be appropriate for a ground floor facade of a teaching block?
Float glass is __________, so people could mistakenly ________ through it.
Float glass is __________, so it can __________ easily if it was knocked into.
very clear
walk
brittle
shatter
Low emissivity glass reflects heat back to the source.
So what happens to the home?
It helps the home stay cooler in the summer.
Low emissivity glass reduces energy use in a home.
So what happens to the home?
It reduces energy bills.
Low emissivity glass reduces condensation.
Why?
Because the glass does not become cold.
