Loops in Asphalt
What is the best way to install loops in a new asphalt pour?

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We are often asked, “How should I install loops in a hot asphalt pour?”

Many installers are tasked with putting in new loops when asphalt is resurfaced. There are 2 simple guidelines to follow for installing loops in this type of application:

After the asphalt has been ground down:

If the sub base is soft – dig a trench and use a direct burial loop, encase the loop in sand to prevent the loop from coming in contact with the hot asphalt. Follow our direct burial installation instructions for loops under asphalt.

If the sub base is hard – saw-cut in a loop and seal it before the new layer of asphalt is poured.  Follow our saw-cut loop installation instructions.
The goal here in both cases is to keep the loop from coming into direct contact with the hot asphalt.

What about Hot Asphalt Loops?

There are products on the market that have an outer jacket rated to take the initial heat shock of a hot asphalt pour. This is a product we wanted to offer and spent a lot of time in research and development. During our research we discovered that putting anything into a hot asphalt pour is unadvisable. Loop wire does not have the same consistency of asphalt, this means the asphalt will compress in the area of the loop and cause reflective cracking. When asphalt begins cracking it is only a matter of time before it needs to be resurfaced again. This is why (with the advice of asphalt experts) we advise installing loops into the sub base of an asphalt pour.

Another issue to consider with putting a loop into a hot asphalt pour is that a water channel will be created around the wire. This can speed up cracks being formed in areas that experience freezing temperatures. Water stuck in the water channel will expand when frozen and contribute to the surface cracking.

BD Loops is a manufacturer of preformed direct burial and saw-cut inductance loops for the gate, door, and parking industries. With over 14 years in business the quality of BD Loops is unparalleled. BD Loops products are available through over 400 distributors in the U.S. and Canada. BD Loops offers 46 standard preformed loop sizes, all standard and custom loop sizes are ready to be shipped the same day. The company has several letters of recommendation testifying their professionalism and design, and is a member of the following associations: AFA, IDA, NAFCA, NOMMA, IPI, CODA, and IMSA. Feel free to call BD Loop's knowledgeable staff with any questions about loops or their applications. By visiting the BD Loops website (www.BDLoops.com) you are sure to learn something new whether if you are new to installing loops or a veteran installer. While you are at the BDLoops.com website sign up for our free informative monthly installer newsletter.Use our distributor locator to find a distributor near you.