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Posted on 1/14/2016

The technology of using a nonwoven geotextile as a concrete pavement interlayer has been widely proven in Europe for over 30 years. In 2006, this technology reemerged in the US due to the efforts of FHWA and several State DOTs. The technology improves the quality of Portland cement concrete (PCC) pavements and greatly lowers their costs.

There are two basic applications for a concrete interlayer geotextile; 1) between existing PCC, asphalt concrete, or composite pavements and a new PCC overlay; and 2) between a treated base or subgrade and a new PCC slab. Traditionally, a hot mix asphalt concrete (HMA) layer was employed and the functions of the interlayer are as follow: To provide a degree of disbondin...

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