Asphalt Paving, specializing in driveways, condominiums, and parking lots

"The Lambert Bros. Paving crew completed a job for us last summer. We appreciated their flexibility when the schedule and quote had to be juggled to accommodate the change in the scope of the job. We were happy with the job and will call Lambert Bros. Paving again."

Trevor Ash
H. Ash and Associates
Cochrane, Alberta

ASPHALT PAVING

Specializing in acreage driveways, condominiums, and parking lots

Asphalt pavement is a popular choice for driveways, parking lots, tennis courts, runways, roads, pathways, etc. because of its durability, cost-effectiveness, simplicity of construction, and strength. It can withstand heavy loads and, when properly maintained, it lasts for many years.

At Lambert Bros. full paving services are available to residential and commercial properties in Calgary and throughout Alberta.

Our workmanship reflects the highest quality standards in the industry. We pride ourselves on our cleanliness and attention to detail. We take special care around flower beds, sidewalks, cement, garage doors, etc. After completing the job, your site will be tidy, clean and attractive. Weather permitting, we finish on time and within budget. All paving jobs include a minimum one year written guarantee.

In order to maximize the life of your asphalt parking lot, it is important to develop a pavement management plan involving routine inspections and ongoing preventative maintenance. The following are common maintenance procedures for asphalt pavement:

Paving Terminology

Excavate, Remove and Replace

This rehabilitation patching method is used for areas of severely damaged pavement that needs to be removed before the pavement can be properly repaired. At Lambert Bros. we cut at least one foot beyond the deteriorated and broken asphalt to ensure that all the weakened asphalt is removed after which we restabilize the base. The depth of the removal will be determined by the traffic expected on that area of the pavement, and the condition of the existing sub-base.

Once the patched area is compacted, we will clean and apply a tack oiled for adhesion. Then the area should be filled with roughly 3 inches of hot mix asphalt, which can then be compacted.
If the pavement repair is in an area that receives heavy truck traffic, it should receive a heavy duty repair. Heavy duty repairs should also be cut 1 foot beyond the deteriorated pavement. The area should be removed to a depth of approximately 10 inches or until a stable subsoil is reached. A new crushed stone base should be installed to a minimum depth of 6 inches. This new base should be moist when placed and compacted using a roller with the static weight of not less than three tons. In severe cases 4 - 6 inches of concrete may be used in place of rock.

Vertical cut surfaces should be cleaned and tack coated as in the previous procedure, and 2.5 inches of a coarse binder asphalt, which serves as an intermediate layer between the aggregate and the surface layer, should be installed and compacted with a two-ton to a four-ton roller.

Once this intermediate layer is compacted, we install two inches of a finer hot mix as a surface or wearing coarse; roll and compact.

I should mention that this specifications for light and heavy duty repairs are basic guidelines that are flexible. They should be adjusted for the specific needs of the job.

Skin patching

Skin patches are patches generally 1 inch or less in thickness. Sometimes skin patches are used to fill depressions, in which case the patch could be as thick as three or four inches.

A skin patch goes over the existing pavement and is only used when there is no base failure, to achieve drainage or for a low budget short term "Quick Fix".

Skin patches generally use a fine sand aggregate as opposed to coarse aggregate because the edges of the patch are "feathered" out to zero thickness.

Usually skin patched areas are used to improve the appearance of pavement or to stop water penetration.

Resurfacing

Resurfacing an area involves the placement of one or more asphalt overlays on top of existing pavements. A hotmix asphalt overlay can include a leveling course to even out the pavement surface and a second uniform coarse to provide the necessary thickness. Resurfacing in parking lots generally requires only one overlay.

When preparing pavements for resurfacing, the base must be blown or swept completely clean in order for a tack coat to adhere. This tack coat will ensure that the new pavement sticks to the older asphalt surface.

Crack Filling

Lambert Bros. Paving offers Hot Applied Elastomeric (Rubber) Crack and joint sealing. We have found that cold pours simply can't perform well enough in Alberta. This process usually goes hand and hand with sealcoating. Generally the pavement is cleaned, crack sealed and Micro Pave 2000 sealcoat is applied. We recommend that if a pavement is cracked it be inspected every year. Any new cracks that have formed or old cracks that have reopened should be resealed, especially before winter sets in. The intrusion of water into pavement is bad news. Water destroys pavement. It breaks down the rock properties and softens the subgrade (clays and soils) causing eventual pot holes and pavement failures. When water enters a crack and freezes, it expands and either causes the asphalt to explode or crack further eventually resulting in a pot hole and further failures.

Most customers agree that black lines of crack fill in a roadway or parking lot are not attractive. They will even look worse than the cracks themselves (unless a fresh coat of sealer is applied for uniform color). However, the alternative of not crack sealing can be devastating economically in the long run.

For more information, or to request a quote, e-mail info@lambertbros.ca.

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