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1) angle of rest:

2) The angle between the horizontal and the plane of contact between two bodies when the upper body is just about to slide over the lower. Also known as angle of friction.

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14y ago

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Density of gypsum kg per cubicmeter?

Solid gypsum density is 2312 to 2322 kg/cubic meter or 2.312 to 2.322 g/cc. These are "as measured" values indicating some variation in the gypsum crystals. By the molecular formula, calcium sulfate with two water molecules should weigh 2.308 gm/cc. If not solid, then broken gypsum density ranges from 1290 to 1600 kg/m3.


What is fire code c drywall?

This boardis similar in composition to Type X drywall, except that it has more glass fibers, and, it has another ingredient in the gypsum core. This ingredient is a shrinkage-compensating additive, a form of vermiculite. When exposed to high heat, the gypsum core shrinks but the shrinkage-compensating element expands at about the same rate as shrinkage occurs in the waterdepleted gypsum. The gypsum core then is more stable in a fire and remains in place even after the combined water in the gypsum has been driven off.


What does gypsum smell like?

it is sometimes white, and also sometimes some look like regular rocks


5 why is Gypsum is a 2 on Mohs hardness scale while topaz is an 8 Can gypsum scratch topaz?

No, gypsum cannot scratch topaz. Minerals with a higher number on the Moh's Hardness Scale can scratch minerals that are lower-numbered, but lower numbers can't scratch higher numbers. A mineral would have to have a number higher than an 8 on the Moh's hardness scale in order to scratch topaz.


What kind of angle are there?

Right angle (90) Acute angle (<90) Obtuse angle (>90) Straight angle (180) Reflex angle (>180)