Glass NAME Nada Al salimi Nasra AL SAAIDI

Glass NAME: Nada Al salimi Nasra AL SAAIDI -

What is glass? Glass is made from liquid sand. You can make glass by heating ordinary sand (which is mostly made of silicon dioxide) until it melts and turns into a liquid.

Is glass a solid. . . or a liquid? The answer is both—and neither! There are widely differing opinions on how to refer to materials such as glass that seem to be a bit like liquids in some ways and a bit like solids in others.

Glass is made up of sand, soda ash and limestone substances. 1 It is a hard material that is normally breakable and transparent. Physical and Properties : chemical of Glass building. Foamed or cellular glass is used as rigid. Glass fibers are used intextiles and for material reinforcenent. Also, used for acoustical and thermal insulation. Glass block is used to control light transmission , glare and solar radiation. Glass , however, is used most commonly to glaze the window, sash, and sky light openings of

float glass: THE THREE MAJOR TYPES OF FLAT Plate glass: GLASS: It is vsed in making canopies, shop fronts, glass blocks, railing partitions. Is used for display cases. Sheet glass: Is used in glazing.

Annealed glass Heat- strengthened glass OTHER TYPES OF GLASS, , , Tempered glass Laminated glass Wired glass Patterned glass Obscure glass Spandrel glass -

Insulating glass: Is a glass unit consisting of two or more sheets of glass. Tinted or heatabsorbing glass. Has a chemical a admixture to absorb a portion of the radiant heat and visible light that strike it. Reflective glass has a thin: Translucent metallic coating to reflect a portion of the light and radiant hat that stick it. Low emissivity(low-a) glass

SPECIAL USES FOR GLASS: Glass has many applications both internal and external that play a vital role in the function and design of a building. Below is a list of some of the many uses of how glass is applied in the building fabric.

Important Properties of Glass: 1. It absorbs, refracts or transmits light. It can be made transparent or translucent. 2. It can take excellent polish. 3. It is an excellent electrical insulator. 4. It is strong and brittle. 5. It can be blown, drawn or pressed. 6. It is not affected by atmosphere. 7. It has excellent resistance to chemicals. 8. It is available in various beautiful colors. 9. With the advancement in technology, it is possible to make glass lighter than cork or stronger than steel. 10. Glass panes can be cleaned easily.

SOLAR ENERGY TRANSMISSIO N REDUCED (35% TO 75%) VISIBLE LIGHT TRANSMISSIO N REDUCED ( 32% TO 72%).

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