glass

Question 1

The main ingredient in glass is ( … ) quartz sand, fused with heat

Answer 1

Silica

Question 2

70%Silica (sand) SiO2 , 18% Sodium.
Introduction
* A glass that is used as a building material. It is most typically used as transparent glazing material in the
building envelope, including
windows in the external walls (curtain walls), tiles and surfaces.

Answer 2

true

Question 3

It is also used for internal partitions and as architectural feature. When used in buildings, glass is often of a safety type, which include :

Answer 3

reinforced, and laminated glass.

Question 4

Characteristics of glass

Answer 4

) glass break into sharp shards
Degree of light transmitting glazing
strength
Impervious to staining
fire resistance
Energy Efficiency

Question 5

tempered or laminated glass –a type of safety glass that has increased strength and will
shatter in small, square pieces when broken

Answer 5

) glass break into sharp shards

Question 6

Regular float glass allows 75-92 percentage of light transmission

Answer 6

Degree of light transmitting glazing

Question 7

Annealed glass that is cooled at a slower rate make
it stronger.
* …..glass (2 times stronger).
* …. glass (4 times stronger).

Answer 7

Heat-strengthened
Fully tampered

Question 8

Durable against scratching

Answer 8

Impervious to staining

Question 9

when glass is produced it
held in a high temperature until crystals begin to form glass.

Answer 9

Ceramic glass:

fire resistance

Question 10

Insulated glass is two independent panes of glass.
* The function of this is thermal insulation and noise reduction.
* Reflective glass coatings, metallic coating to reduce solar heat gain, applied to the face of the glass to improve performance

Answer 10

Energy Efficiency

Question 11

Cast glass windows began to appear in most important buildings in Rome

Answer 11

t

Question 12

Two pieced of glass are laminated together, sandwiching a layer of other material.

• Buffering sound and block light, heat

Answer 12

Laminated Glass:

Question 13

.
in areas where privacy is desired while admitting light.
* –an architectural element made from glass used

Can come from recycle glass.

Answer 13

Glass block

Question 14

…used to fasten glass.

• Glass is drilled before it is tempered to install door pulls or ….
• Glass is frequently held in a channel, a U shaped piece of metal because it expands when subjected to heat

Answer 14

Hardware