What is differance between road asphalt and roofing asphalt?
598637
Asphalt is just the "glue" that holds things together. So there is probably no difference other than the stuff that it binds together (on a roof, it is rock/sand/etc, on a road it is sand and gravel)
560252
Cold mix asphalt is produced by emulsifying the asphalt in water with soap prior to mixing with the aggregate. In its emulsified state the asphalt is less viscous. The mixture is easy to work and compact. The emulsion will break down after enough water evaporates and the cold mix will take on the properties of hot mix asphalt after it cools. Cold mix is commonly used as a patching material and on lesser trafficked service roads.
819992
The oldest 'road' (paved) that I can think of at the moment is Route 66....hope that helps!
1071336
asphalt is a mixture of sand rock and emulsion. then heated to 340 F and laid and compressed as the oils in the emulsion degrade it turns grey
384952
heere are several examples of what is used to melt ice on the roads
977467
One really has no relation to the other.\n\nYour street may not be a real street.  Sometimes people just build a road and it isn't an actual street that has been set up with the city and the post office will not deliver mail to any addresses on it.  \n\nCall your local building department and ask.
1099211
It depends on what kind of roof it is (asphalt or cement), what kind of condition it's in now (is it in solid pieces or is it coming apart), and if what you're doing changes that.  If it's in good condtion and solid, there really isn't much to worry about.  \n\nIf it's already crumbling (called friable) or gets that way because of the pressure washing, you have 2 things to worry about.  1) The amount of asbestos we know causes problems is ridiculouly low.  It doesn't take very much at all.  2) If bits of roof go flying every which way, you may have the EPA coming over and will not act amused at all.  Something expensive is about to happen.
633792
hey hey. finally something i know about.\n\nInsulation? by that i think you refer to the resistance on heat traveling from one area of a building to another (or from outside to inside)? well, i have heard of, fibreglass woll. spun molten rock wool, polystyrene, etc. if you are refering to building materials used by varying cultures around the world, then i would say, mud walls. clay walls, logs, stone, thatch (roofing), straw (hay), ice (igloos). If im not on the right track, im me and ill tell you other stuff
809143
a causeway is a road or railway elevated by a bank, usually across a broad body of water or wetland.\n\nA bridge is a structure built to span a gorge, valley, road, railroad track, river, body of water, or any other physical obstacle.
193220
Ashpalt generally weighs 115 lbs per square yard at 1" of thickness. So, first convert square yards to tons by multiplying it by 0.0575 tons, then multiplying it by the depth in inches. This will give you the total tonnage of asphalt needed. Now just multiply this by the cost of asphalt per ton and you should have your price.\n\nExample:\n500 sq.yds. at 4" deep. Cost of 1 ton of asphalt is $40. So,\n(500 x 0.0575) x 4 = 115 tons\n115 tons x $40 = $4,600
248240
Tobacco tar isn't the same as what you put on your roof as a sealant (which is more likely to be "pitch", a petroleum by-product).  Tar is just a generic term for the sticky organic by-product of burning tobacco leaves that tends to remain in the lungs -- obviously not good for the health.
432768
The snow is worse because it piles up and causes serious driving problems. Hail, on the other hand, may cause some damage, but is short - lived, usually ending within minutes.
728498
These windows are not as low as they appear.  And unless they area left open on a dowmpour, the entire areas are sealed to prevent water penetration.  The foundation of a building is often waterproofed with asphalt, similar to the roofing material, to protect it from humidity.  Otherwise, our houses would rot within a couple of years.
725184
Great question. The light from the Sun is only part of the answer. The Moon has had its surface  pounded by meteor impacts. These throw up molten droplets of rock which cool and solidify as small glassy spheres and drop back onto the surface, As there is no atmosphere on the Moon the particles don't get blown around and abraded (which would make them dull). So a lot of the Moons surface is covered with a layer of highly reflective particles and thats why its so bright.\nThe lines painted down the road work on the same principal. The paint contains small, round glass particles to make it highly reflective whereas the road remains dark.
609488
Protect the tar/membrane system from sun/uv, and reflect sun to keep temps lower. Also, weight prevent wind damage to membrane system. Very good roof, long lasting, relatively inexpensive to install.
520511
That depends on what you are talking about.  In automotives greasing usually means actually using automotive grease, while lubricating usually means using some form of automotive oil.\nIn cooking--greasing means using grease and lubricating can mean using oil or grease.
714941
A large coefficient of friction is a rough surface like the surface of a road.\n\nA low coefficient of friction is slippery, like ice.\n\nJ