Posts Tagged ‘Asphalt Base’

What is Asphalt Pavement? :: Baltimore Pavement Contractor

Friday, May 18th, 2012

Asphalt pavement is made up of several components, including stone aggregate, sand, additives, and liquid asphalt (petroleum). Once combined, the final product consists of 90-95% aggregate and 5-10% asphalt.

Creating Asphalt Pavement

  1. Predose: The aggregate components of asphalt pavement are weighed using a belt weighing instrument, so that the materials can simultaneously be weighed and taken to the next step in the process.
  2. Drying: A rotary drying drum is used to dry the components at around 300 degrees.
  3. Storage: The preheated or dried components are now sifted and store in silos.
  4. Mixing: The aggregates are then transferred to the mixer. Both the aggregate and binder are mixed thoroughly to form the paving material.
  5. Storage Round 2: After the hot asphalt mix is created it is transported to a heated silo, where it is stored and kept hot until it is ready to be used.

Surface Preparation

There is a great deal of surface preparation that must be performed before the asphalt pavement can be applied. This process includes proper clearing, excavation, ground compaction, and the application of liquid asphalt binder and base materials (compacted stone or asphalt base).

Without proper surface preparation, the life of the paved surface is greatly reduced.

  1. The application of liquid asphalt binder helps the newly paved surface create a greater bond between it and the surface.
  2. The asphalt pavement mix is laid using an asphalt paver and compacted using asphalt rollers. Proper rolling methods have to be used to ensure proper compaction.
  3. Once the asphalt is compacted, it is left to solidify for a minimum of 24 hours.
  4. Enjoy (after you sealcoat your asphalt surface, of course)!

If you have any further questions about Asphalt Pavement or have a project that you need completed, then contact PTG Enterprises aka My Pavement Guy today by calling 410-636-8777 or click here today! The asphalt experts here have managed hundreds of pavement projects and have the experience you need.

Give me the opportunity to impress you. I can be your one stop ‘Pavement Guy,’ for any pavement project regardless of size or scope.

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Why Asphalt Pavement?

Thursday, June 30th, 2011

If you are thinking about having any surface re-paved – driveways, parking lots, roadways, airstrips – asphalt pavement is the way to go. Known for its durability and resilience, asphalt pavement is the best option for most all paved surfaces. If laid properly by a professional pavement company, asphalt pavement should last between 25 and 35 years. But what is asphalt pavement?

This article from explains.

Asphalt pavement is made up of a combination of stone (aggregate), sand, additives and liquid (petroleum) asphalt. This mixture is about 90% aggregate and sand and 10% asphalt. This combination forms a highly durable material that still maintains superior flexibility, allowing the surface to adapt to changing conditions produced by weather and the constantly changing surface beneath it. On top of its superior flexibility, asphalt pavement is also highly resistant to water, making it even more durable.

Steps involved in laying asphalt pavement:

1.    Preparation: Unless the asphalt is being laid over existing asphalt (overlay), it is the preparation of the ground beneath the pavement that is the most influential factor in the life of an asphalt pavement surface. Proper clearing, excavation, ground compaction and base materials require a great deal of expertise. Base materials can be compacted stone and/or an asphalt base with it’s own unique recipe. Regardless, without proper groundwork the life of the paved surface is greatly reduced.

2.    Spray a thin coat of liquid asphalt binder (hot tack) onto the surface using an asphalt distributor. This helps the newly paved surface create a greater bond between it and the surface beneath it.

3.    Lay the asphalt pavement using an asphalt paver and compacted using asphalt rollers.

4.    A minimum of 24 hours is required for the asphalt mix to solidify before it can be used. If enough time is not allowed for solidification, then it will result in poor a quality pavement.

5.    Asphalt maintenance – including cracksealing, pothole patching and sealcoating – can all be used to protect and extend the life of the already long life cycle of asphalt pavement.

If you have any questions or if you think asphalt pavement might be right for your next project, contact PTG Enterprises by calling 410-636-8777 or click here

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