Black Diamond Paving, CO.
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Transcript of Black Diamond Paving, CO.
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BLACK DIAMOND PAVING, CO.
Kersten Stelmach, Maggie Bailey, Hailey Frankland
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Cost & Time
20 minutes for the asphalt to get to about 300 degrees
The average time it takes to pave a regular freeway is about two days
275$ per square foot for highways
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Transportation of Asphalt HMA (Hot Mix Asphalt) is put in trucks to
be transported to the paving sites The trucks dump the HMA into hoppers
located in the front of paving machines The asphalt must stay at 175 degrees
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Location in Distillation TowerLighter hydrocarbons are towards the top of the fractional column while the heavier molecules are towards the bottom
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Process Involved in Manufacturing
Asphalt chunks or millings are loaded into an asphalt recycler that mixes them until they are combined
Asphalt is a compound It includes sand, crushed stone, or gravel Also petroleum and crude oil is mixed
with it too Depending on how much you heat it up,
it could become a solid or a liquid
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Process cont. The hydrocarbon material is made from
the left over waste material from kerosene, gasoline, and diesel fuels
Asphalt is a hydrocarbon mixture that is heated until it has the consistency of tar
Asphalt is a by-product of the excess material after crude oil and petroleum have been harvested
http://www.youtube.com/watch?v=FI2JQ-bVNMw
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Benefits of Mankind/earth/living Organisms
There are four main advantages of using asphalt: Economical Durable Safe Recyclable
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Economical Low cost It takes less time to complete
construction Saves contractors, public, and
government time Dries very fast, less traffic
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Durability Can be used for low and high traffic
conditions Tractor trailers can drive on it without it
cracking under pressure Can width stand different weather
conditions High flexibility
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Safety Smooth like finish Skid resistant Reduces splash-back Better visual differences (reduces surface
water)
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Recyclable 100% recyclable Saves renewable, natural resources Its life cycle never ends (can be reused
over and over) Every year, 75 million tons of asphalt is
recycled
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Risks if Asphalt is not Manufactured
If asphalt isn’t manufactured, road conditions would not be suitable for travel They would become cracked and uneven over time Runways for planes won’t be able to handle the
weight and its velocity Eventually, the roads wouldn’t be in a good
enough condition to drive on Without petroleum in asphalt, it wouldn’t be
durable The bond between all the materials wouldn’t
stick together and form
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Research & Development By using the RAP, it will lower the amount
of petroleum, crude oil, and other materials needed
an owner operator recycling 50 tons/day for 30 days, will yield a savings/profit of $90,000
Petroleum is needed to make good quality asphalt
If you discontinue asphalt, we will have to use dirt road and gravel road that damages cars and trucks
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Disposal of Waste by-products It is reusable Asphalt does not add to the landfills RAP means ‘Reclaimed Asphalt Pavement’,
asphalt pavement material that has been removed from paved surfaces and reprocessed (recycled).
This method keeps 75 million tons of asphalt out of the landfills
When it’s time to dispose of the RAP, contractors will often bring it to a hot mix plant, which charges a small fee and then recycles/resells it.
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References http://
www.apa-mi.org/what_is_hot_mix_asphalt_paveme.php
http://www.asphaltrecycling.com/display.php?cnt_id=24
http://www.wisegeek.org/how-is-asphalt-made.htm
(Company we called for information is on the sheet)