Transcript glass industry in civil engeenering pertemuan 08

Matakuliah : S0372 – Kimia Teknik Sipil
Tahun
: Ganjil 2007/2008
GLASS INDUSTRY IN
CIVIL ENGEENERING
PERTEMUAN 08
GLASS INDUSTRY
From chemical facet, glass is aliance various
inorganic oxide which do not be volatile, which yielded
from dekomposisi and forge of alkali compound and
land;ground alkali, sand and also various other
compiler so that yield product having random atomic
structure. Glass is product yielding perfect vitrifikasi,
or at least pregnant product very a few/little materials
of nonvitreo in a state of suspension.
Bina Nusantara
Bina Nusantara
Chemical Composition Various Example of Glass ( in % )
In general commercial glass can be divided to
become some faction:
1. Molten silica.
Is made to through silicon pirolisis of tetraklorida at high
temperature, or from forge of pure sand or kuarsa. This glass
have resilience of termal high and can be utilized at higher
temperature than other glass. This glass also very
transparent to ultraviolet radiation.
Bina Nusantara
2. Alkali Silicate.
To making it, molten soda and sand with and its
result is referred by silicate natrium, having
composition range from Na2OSiO2 to Na2O4SiO2.
This pregnant Glass variation of used high alkali to
clean as detergen and constructor of soap.
Bina Nusantara
3. Glass Soda - Limestone.
This glass represent 95% from all yielded glass. This glass is
used to make all kinds of canister, sheet glass, car window
or is other, glassware goods and glass.
4. Glass Lead.
This glass use lead oxide in the place of oxide calcium in
water glass mixture. This glass of vital importance in the field
of optic because having refraction index and of dispersi high.
This glass is also used in gross to make bulb, neon
advertisement lamp, radiotron because having high electrics
prisoner.
Bina Nusantara
5. Glass of Borosilikat.
Usually contain 10 – 20% B2O3; 80 – 87% silica and less
than 10% Na2O. Is used in furniture of laboratory and to
make high voltage isolator, telescope lens pipe.
6. Special Glass.
Chromatic glass have, cladding, opal, safety glass, optic
glass, and ceramic glass, altogether the including special
glass.
7. Glass wool
Is made of by special glass composition, holding up to
wheater condition. hit by Easy attack dampness of air.
Usually have low silica content, around 55%, and low alkali.
Bina Nusantara
Bina Nusantara
Bina Nusantara