Discover how to strengthen the centerline.
There’s no shortage of things to learn about J-Band and the positive impact it has on preserving pavement as a Void Reducing Asphalt Membrane (VRAM). Explore these Resources and Studies for more information on this innovative solution.
Resources
Studies
2023 Research: VRAM for Rumble Strips
Examines: VRAM for Increased Cracking Resistance and Decreased Permeability
2021 Study: VRAM/LJS Illinois Performance Study
Examines: VRAM Service Life & Cost Analysis
2025 UDOT Innovation Report
Examines: VRAM for Life Extension & Cost Avoidance
2017 Dupage County S.T.A.T.E. Testing
Examines: VRAM for Increased Cracking Resistance & Durability
2020 MNDOT Iowa State University Study
Examines: VRAM for Decreased Permeability & Air Void Content, Increased Cracking Resistance
2025 NRRA Study on Rumble Strip Durability
Examines: The Use of VRAM to Improve Rumble Strip Durability
2022 Center for Advanced Infrastructure & Transportation Evaluation
Examines: VRAM for Reduction in Air Voids, Significant Decrease in Permeability, and Increase in Cracking Resistance.
Trusted by Communities Nation-Wide
"We’re looking forward to using VRAM again on the NCAT Test Track as a preservation tool to improve future longitudinal joints."
Nathan Moore, P.E.
Assistant Director for NCAT Test Track Research
"UDOT calculated $335,775 cost avoidance for just 2.5 miles of the VRAM test road."
UDOT
2025 Innovation and Efficiencies Report
"Longitudinal joint performance is improved with the use of void reducing asphalt membrane (VRAM). This product makes the joint more impermeable to water."
Phil Blankenship PE, MSCE
Owner & President of BATT Labs
"Investment in J-Band is critical for the longevity of the asphalt."
Robbie Robinson
Technical Marketing Manager – Associated Asphalt
"Products like VRAM help us extend the life of our pavements and spend less money on maintenance further down the line."
Justin Schneck
County Engineer for Morgan County, IN
"Samples taken from the VRAM section show improved density compared to those taken from the non-VRAM control section of the same project. It is anticipated that reducing air voids with VRAM will extend the life of the asphalt by up to 4 to 5 years."
UDOT
2025 Innovation and Efficiencies Report
"By using a VRAM for this project, we’re investing now to avoid expensive maintenance along longitudinal joints later. Specifically, we anticipate it will promote a better concrete-asphalt bond and keep the pavement from pulling away from that curb."
Matt Manthey
Pavement Management Supervisor for the City of Mesa, AZ