Frequently Asked Questions
General Questions | Paving Questions
Asphalt Repair Questions | Sealcoating Questions
Crack Repair Questions | Concrete Repair Services
Cement Stabilization Questions | Glossary for Asphalt Paving Terminology
Concrete Repair and Services
Why should I choose asphalt pavement for my paving needs?
What sort of maintenance is required to prolong the life of your parking lot?
Do you provide free estimates?
Do you perform residential work?
Can asphalt be recycled?
Will my business be impacted during your work?
What is asphalt made of?
How long will my new asphalt surface last?
What is the minimum temperature for paving?
How long should I stay off the new asphalt?
What causes blemishing on newly paved asphalt?
Can you pave over concrete?
What are the major contributors to pavement deterioration?
Why should I choose asphalt paving over other methods?
When is the best time to perform asphalt repair?
What causes potholes to form?
What causes asphalt to alligator?
What are the different kinds of patch repairs?
What are the different kinds of asphalt repairs?
What are the benefits of asphalt sealcoating?
What is the difference between asphalt sealer and pavement resurfacing?
Does the Asphalt Sealer fill in the pavement cracks?
How long should I wait before driving on a newly sealed surface?
Should a newly paved lot be seal coated right away?
When is the best time for a parking lot to be sealed?
Why should I fill in the cracks that have developed in my parking lot with asphalt crack filler?
Concrete Repair and Services
What sort of concrete services do you provide?
What causes concrete to crack?
Why does some concrete develop surface deterioration?
How soon can new concrete be put into use?
What does FDR stand for?
Is stabilization guaranteed to work?
Is FDR messy?
Glossary for Asphalt Paving Terminology
Asphalt(Asphalt Cement): A dark brown to black cementitious material in which the predominating constituents are bitumens, which occur in nature or are obtained in petroleum processing. Asphalt is a constituent in varying proportions of most crude petroleum and used for paving, roofing, industrial and other special purposes.
Aggregates: Usually various sized stones, crushed rock, gravel, etc. that make up approximately 92-96% of the asphalt mixture. (Asphalt Cement makes up the other 4-8 %.)
Asphalt Base: Asphalt mix where the largest stone used is no larger than 3/4 of an inch (typically #57 gradation). Base mixes are usually laid over a stone base at a minimum depth of 2 inches compacted.
Asphalt Binder: The asphalt layer between the base layer of rock or other aggregate and the driving surface layer. The asphalt binder layer is usually made up of coarser materials and is usually thicker than the surface layer. The binder layer can be used as either a first layer or a driving surface, but its use is actually fairly limited. The vast majority of jobs call for a stone base layer, an asphalt base layer, and then a surface layer.
Asphalt Leveling Course: A course of hot mix asphalt of variable thickness used to eliminate irregularities in the contours of an existing surface prior to placing the subsequent course.
Coal Tar: A by-product of coke ovens in the steel production industry. Refined coal tar has been used as a base for asphalt pavement sealers since 1938. It has become more expensive in recent years due to the shift in steel production to foreign countries.
Compaction: Compressing a given volume of material into a lesser volume. A compacted subgrade and base is essential.
Density(thickness or compactness): Technically, density refers to the weight of a material at a specific volume (unit weight). A specific density of asphalt is achieved my mechanically compacting (rolling) the hot material after it has been placed by the paving equipment. To most consumers of asphalt, it means the compaction of the material versus a theoretical value that is usually derived in a laboratory.
Emulsion: Mechanically produced combination of ingredients, which do not normally mix. For example, asphalt emulsions are made by a procedure, which mechanically mills the warm asphalt into minute globules, dispersing them in water, and adding a small amount of an emulsifying agent.
Finished Grade: The final grade created as part of the project.
Full-depth Asphalt Pavement: The term full-depth certifies that the pavement is one in which asphalt mixtures are employed for all courses above the subgrade or improved subgrade. A full-depth asphalt pavement is placed directly on the prepared subgrade.
Geotextiles: Geotextile is the technical name for fabric like materials used in the paving process. Geotextiles are manufactured for specific uses and performance characteristics. Some uses include stabilization of base material to prevent migration into sub-grades, retarding of reflective cracking in asphalt overlays, and serving as a moisture barrier between pavement layers.
Slope: The degree to which a paved surface is angled to aid in the drainage of water. The act of leveling or sloping the subgrade or base layer before paving.
Joints: An asphalt joint is the area where two different “pulls” of asphalt meet. This area is usually highly visible after the paving operation and is sometimes referred to as a “seam.”
Lift: A layer or course of paving material applied to a base or a previous layer. Polished aggregate: aggregate particles in a pavement surface that have been worn smooth by traffic.
Reflection Cracks: Cracks in asphalt overlays that reflect the crack pattern in the pavement structure below it.
Seal Coating: Application of a sealant (usually coal-tar emulsion or asphalt emulsion type) to preserve, protect, and beautify asphalt pavements. Generally used on low traffic streets or off-street locations.
Stone Base: The layer in the pavement system below the asphalt binder and driving surface. The base usually consists of crushed stones of varying sizes and gradations.
Subbase: The course in the asphalt pavement structure immediately below the base course. If the subgrade soil has adequate support, it may serve as the subbase.
Subgrade: The soil prepared and compacted to support a structure, slab or pavement system.
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