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Is the pavement structure (subgrade, subbase, base, and all asphalt layers) adequate to support the loads?
A:
Thickness Design of Asphalt Pavements for Heavy Wheel Loads. Or you can purchase our SW-1 Asphalt Thickness Design Software Program, where the MS-23 calculation procedures are automated in one of the modules. Info on both can be found in the link bel
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Does an asphalt facility keep hazardous chemicals on site?
A:
A. Liquids that must be handled with care at an asphalt facility are: • fuel oil for the burner, the same kind of fuel oil you may be using to heat your home; • fuel for vehicles, the same product you buy at the gas station; and • at some facilities,
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How do asphalt plants affect air quality?
A:
Air emissions are created at several stages during asphalt production. Most of the emissions come from an asphalt plant's main stack. Fumes from asphalt storage and loading areas account for the remaining air emissions, collectively referred to as fu
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How have the crude oil supply problems from the Prudhoe Bay region of Alaska affected domestic asphalt supply?
A:
Bob Redd : Even though the problem occurred during the peak of the season, the impact on supplies was negligible, if any at all. Most asphalt manufacturers on the West Coast incorporate a mix of crudes into their refinery slates and, to my knowledge,
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What type of gravel or stone should i use prior to spreading asphalt?
A:
Use either 3/4 Dense Grated Aggregate (DGA) , or 1 1/2 Dense Grated Aggregate (DGA).
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Just what is Hot Mix Asphalt?
A:
It’s an engineered mixture of aggregate, (stones and sand), with liquid asphalt cement, a petroleum product. Varying sizes of aggregates are heated, then mixed, in exact proportions, with asphalt cement that has been liquefied at about 300 degrees.
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Hot mix asphalt (HMA) pavement may be cheaper as a first cost, but what about life cycle cost?
A:
Properly designed and constructed HMA pavements are the most economical to maintain over the long term. A comparison study of Ohio s Interstates has shown that original HMA pavements have been cheaper to maintain throughout their lives than concrete
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Partnering with ADOT and the tribe can this be used toward maintenance on asphalt crack sealing?
A:
Partnering between the tribes and ADOT is encouraged for all transportation related issues including maintenance. Contact the district engineer to initiate further discussion. Crack sealing of BIA owned roads is done under the BIA maintenance side of
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What are the optimum aggregate properties for Epoxy Asphalt?
A:
Since the aggregates make up about 94% of the paving mix it is essential to use the best available aggregate to obtain a durable pavement with good flexural life. Aggregate should be hard, tough, resistant to wear and polishing and have 100% crushed
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What are the advantages of epoxy asphalt concrete for an orthotropic steel deck?
A:
Epoxy Asphalt pavement has excellent resistance to fatigue cracking and it also helps stiffen the orthotropic deck system. This high performance pavement reduces (dampens) deflection of the deck plate and extends the life of the deck plate. It does n
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