Texas Researchers Tested Recycled Plastic in Road Asphalt

A mile-long experimental road in Rockwall uses recycled plastic to boost durability against extreme heat.

Updated on Sept. 21, 2026 in Materials Science

A close-up photograph of black asphalt pavement mixed with colorful, translucent plastic fragments, highlighting the textured road material. — Researchers at the University of Texas in Arlington are testing a new asphalt mixture incorporating recycled plastic to improve road resilience in extreme Texas heat. AI Illustration. Upload story photo >

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Do you support using recycled plastic to reinforce public roads against extreme heat?

Researchers at the University of Texas in Arlington have developed a method to integrate recycled plastic into asphalt road construction. A test project in Rockwall utilizes 4.5 tons of processed plastic to create a more resilient surface.

Why it matters

The mixture makes asphalt more flexible and heat-resistant, potentially reducing the damage caused by heavy traffic and extreme temperatures. This innovation aims to address the common issue of road surfaces buckling and cracking during intense heat waves.

The experimental road spans one mile and incorporates 4.5 tons of recycled plastic. The process replaces 8% to 10% of standard bitumen with shredded plastic that bonds to the asphalt binder.

The players

University of Texas in Arlington

This public research university serves as the lead institution for the development and testing of the plastic-asphalt hybrid material.

The details

The research team cleans and shreds plastic waste before blending it into the asphalt at high temperatures. This bonding process creates a material specifically designed to withstand heat-induced softening, which plagued Texas roads during 2023.

2023: Record-breaking heat caused roads to buckle and crack across Texas.

Deeper Dive

This project builds upon the established use of polymer-modified bitumen in modern highway construction. It represents an evolution in material science by substituting virgin polymers with recycled plastic waste to improve infrastructure sustainability.

If successful, this method could lead to more durable local roads that require fewer repairs and less taxpayer funding for maintenance. Residents may eventually see smoother driving surfaces that are better equipped to withstand Texas summer temperatures.

The takeaway

Using recycled plastic in infrastructure provides a dual benefit by diverting waste from landfills and extending the service life of public roads. This approach offers a sustainable alternative to traditional bitumen binders while addressing significant heat-related maintenance challenges.