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From category archives: Bituminous Roadways Blog

Pavement Maintenance

Benefits of Maintenance

Pavement Maintenance

Maintaining your asphalt pavement is critical to extending its service life. Addressing problem areas on your pavement right away will save money by delaying or preventing more expensive repairs.

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Pavement Distresses

What are these distresses on my pavement?

Cracking, deformations, and deterioration are three categories of pavement distresses. Each of these distresses can indicate how well your pavement is performing, or more critically, how much longer it might last. Identifying the distresses on your asphalt pavement can help you formulate the most cost-effective maintenance plan.

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How Does Spring Thaw Affect my Parking Lot?

Spring thaw, also known as thaw weakening, occurs in early spring when the temperatures are beginning to rise, and the snow begins to melt. Spring thaw is also the time when the most damage to asphalt pavements can occur. During the winter, water within the pavement and aggregate base freezes from the surface of the pavement down to the subgrade. Spring thaw occurs as the frozen pavement begins to thaw from the surface of the pavement down to the subgrade. While the subgrade is still frozen, water from the thawing pavement is trapped in the materials below the pavement. These saturated materials are significantly weaker, allowing heavy loads to easily damage the pavement. This is why many states implement spring load restrictions. The Minnesota state DOT (MnDOT) has estimated over $10,000,000 in savings each year, due to the implementation of the spring load restriction program.

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Why is Drainage Important for Asphalt Pavements?

Water is one of asphalt’s “natural enemies.” Puddles of water on an asphalt pavement will slowly break down the asphalt and cause a pothole to form. Water deteriorates asphalt by breaking the bonds between the asphalt binder and the rocks and sand. Asphalt binder is a by-product produced from crude oil during gasoline production, and water and oil don’t mix.

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How Does Weather Effect Asphalt Pavement?

With air temperatures last week in Minneapolis and Saint Paul reaching 40°F in January, and now a cold front sweeping in, we thought it would be appropriate to highlight some of the seasonal weather effects on asphalt pavements.

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4 Tips for Winterizing Your Parking Lot

We are fast approaching the winter season – with leaves falling and the temperatures dropping, the time for getting your last minute parking lot repairs completed is NOW! Potholes and cracks are serious business, particularly once the snow and ice take over.

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BIORESTOR® Asphalt Pavement Rejuvenator Sealer

Asphalt is composed of many different components (see the Asphalt Chemistry blog in a few weeks), but generally, the main components are light oils and heavy oils. The heavy oils provide the strength and bonding to the asphalt, and the light oils keep the asphalt flexible and rubbery.

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