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Roadway Recycled Materials Summaries

As part of our Road to Recycling initiative, a road construction industry panel identified 12 materials with great potential in road construction that are readily available in Texas in potentially large volumes, offer engineering benefits, cost-effective pricing and no increased environmental risks.

We have assembled packets of information for each of these materials. The packets include a material overview, research summaries, case studies, a list of current specifications, a list of material sources and a summary of experiences with the material.

Material Summaries

Title Format
Asphalt Shingles Asphalt Shingles, html
Coal combustion by-products, including fly ash, bottom ash, and hydrated fly ash Coal combustion by-products, including fly ash, bottom ash, and hydrated fly ash
Compost and Mulch Compost and Mulch
Glass Glass
Industrial sands Industrial sands
Metals, primarily steel and aluminum Metals, primarily steel and aluminum, pdf
Plastics Plastics, pdf
Reclaimed Asphalt Pavement (RAP) Reclaimed Asphalt Pavement (RAP)
Recycled Concrete Aggregate Recycled Concrete Aggregate
Slags, including ground granulated blast furnace slag Slags, including ground granulated blast furnace slag, pdf
Soils, including petroleum-containing soils Soils, including petroleum-containing soils, pdf
Tires and tire rubber Tires and tire rubber, html

Recycling Facilities and Recycled Material Suppliers

The Recycled Materials Mapping Application is a map that helps locate recycling facilities that handle these recycled materials. The system classifies a facility as one of the following:

  • Generator - recovers or diverts a material or byproduct that can be used in a roadway material
  • Processor - produces a road construction product using recycled materials

Please help us keep this information complete and current by providing corrections and additions to the information in this system to the TxDOT Recycling Program by email, phone (512) 302-2422 or fax (512) 302-2428.

Note: TxDOT maintains this system solely to provide information on recycling facilities. TxDOT does not recommend doing business with any particular organization or endorse any product.