Determination of asphalt softening point by the method “Cock”
Determination of asphalt softening point by the method “Cock”.
The softening point is called temp., in which the standardized bitumen sample, under standard conditions it succumbs …
Category Archives: Knowledge
Building land
Building land
Construction land is all geological formations within the range of the influence of the loads of the erected structures or used for the construction of earth structures (e.g.. dams).
Depending on the physical properties and …
Electric batteries
Electric batteries are chemical direct current sources that can be played repeatedly, in the process of charging from another DC source, of consumed electricity resources; secondary cells. Electric accumulator batteries are used …
The weight of Szkłowski silver and Vernon
The weight of Szkłowski silver and Vernon
The weight of Szkłowski silver and Vernon. The increase in the weight of silver in the containing atmosphere marked by Szkłowski 5% hydrogen sulfide at relative humidity 80 fe 90% is 0,000208 g/cm2
Graphite crucibles and accessories
Graphite crucibles and accessories. They are made of graphite with some clay admixture. They are used in construction (in some specialized units of auxiliary production) for smelting non-ferrous metals. Domestic crucibles …
Other explosives
Chloranowe (chloratates and suplorchlorates). These are potassium chlorates, punishment, or ammonium. They are used similarly to ammonium nitrate materials. They are not suitable for use in deep arrowslits, are beyond that …
Dust, saletra and dynamite
DIRECT EXPLOSIVE MATERIALS (BREAKDOWN, RELAXING). Black rock powder or mining powder. It has the following properties on average: explosion temperature in ° C 2380, gas volume in 1 kg w 1 — 280, heat of explosion …
Classification of flammers
Flammers are divided into: 1. Detonating cords. 2. Lonty prochowe, slowly burning. 3. Fast burning powder fuses. 1. Detonating cords have a core of crushing materials, jak melinit, trotyl, fulminate …
Explosives
EXPLOSIVES AND FLAMMERS. The properties of explosives are used to burst and break up rocks, land etc.. These properties consist in the rapid transformation of a solid explosive into a gas i …
Classification of bituminous materials
They are divided into natural and petroleum asphalts and tars (and packs) carbon derivatives. A number of insulation materials are also prepared on bitumen, like sticky, insulating masses, dilatation masses, cable glands …