Toughened glass was first invented by a glassmaker who wanted to make a windscreen for a vehicle such as a car or a train so that it would break into lots of tiny fragments that would cause less injury to someone if they were thrown through it if the vehicle was involved in a collision. (If ordinary glass were used it would crack into large pieces which would badly cut that person.)
25 kg/m2 is a density of a toughened glass with 10 mm thick. If you want convert that measure into kN, then multiply by the factor "g" that is gravity (9.81 m/s2) and you get 25 x 9.81 = 245.25 kN/m2.
Tempered glass is ordinary glass that has been "toughened" by a special heating-cooling process or by a chemical hardening process. Most mass-produced glass is made from the ingredients Silicon Dioxide (Silica), Sodium Carbonate, Calcium Oxide, Magnesium Oxide, Aluminum Oxide, Sodium Sulfate and Sodium Chloride. Some tempered glass also contains Boron.
Laminated glass is produced by bonding two or more layers of ordinary annealed glass together with a plastic interlayer, usually polyvinyl butyral (PVB). The PVB is sandwiched by the glass which is passed through rollers to expel any air pockets and form the initial bond then heated to around 70
emboldened, strengthened, burgeoned, fortified
Toughened Glass, so the shelves can support several kilos of food.
Toughened glass cannot be cut after it has been processed, as it will shatter into small pieces if any attempt is made to cut it. The toughening process puts the glass under high surface compression, making it resistant to cutting.
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The material for most bus windows is toughened glassThe material for most bus windows is toughened glass
Shoot it, look at the effects to the glass.
On average, 3mm toughened glass weighs approximately 7.5 kg per square meter.
Standard toughened glass is class 0
gorilla glass is a toughened glass, developed by Corning, especially for use in touchscreen applications
Normal float glass is toughened and the two pieces of toughened glasses stuck together with a multilayer PVB in between (lamination), to make bullet proof glass. Refer: http://theglassblog.wordpress.com/tag/glass-tempering/ https://theglassblog.wordpress.com/tag/laminated-glass/
47kg
10Kilo
On average, 10mm thick toughened glass weighs approximately 7.5 kg per square meter. The weight may vary slightly depending on the specific type and manufacturing process of the glass.