Tech Brief: Fiber-Reinforced Concrete Pavement Overlays

Project Details
STATE

IA

SOURCE

CP Tech Center

END DATE

04/01/19

RESEARCHERS

Jeffery Roesler, Amanda Bordelon, Alexander Brand, Armen Amirkhanian

SPONSORS

Technology Transfer Concrete Consortium (TTCC) Transportation Pooled Fund

KEYWORDS

Concrete pavements, Fiber reinforced concrete (FRC), Fibers, Overlays (Pavements)

LINKS

Product

Project description

The objective of this tech brief is to provide pavement engineers with the information necessary to use fiberreinforced concrete (FRC) for concrete overlays. This tech brief explains how to determine the appropriate fiber reinforcement performance values to specify and implement in the structural design calculations for bonded and unbonded concrete overlay projects. A spreadsheet tool called the Residual Strength Estimator was developed to help pavement engineers use FRC in concrete pavement applications. The tool provides an estimate of the FRC performance value to specify for a project as well as the effective flexural strength to input into the mechanisticempirical (M-E) concrete pavement design software.
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