Spotlight on Pavement Uniformity: Using the Paver-Mounted Thermal Profiler (PMTP) for Asphalt Uniformity

United States. Federal Highway Administration

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Spotlight on Pavement Uniformity: Using the Paver-Mounted Thermal Profiler (PMTP) for Asphalt Uniformity

2022-01-01
By United States. Federal Highway Administration

[PDF-742.36 KB]

English

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Details:

Corporate Creators:

United States. Federal Highway Administration
Subject/TRT Terms:

[+]

Density Hot Mix Asphalt Pavements Quality Assurance Standardization
Publication/ Report Number:

FHWA-HIF-22-014
Resource Type:

Brief
Geographical Coverage:

United States
Corporate Publisher:

United States. Federal Highway Administration
Abstract:

In-place density is an important indicator of pavement durability of hot mix asphalt (HMA) mixtures. Nonuniform zones of mix, called "segregation," are typically lower in density than the rest of the HMA mat and appear as common defects in road construction. These locations can fail prematurely, causing poorer ride quality for the traveling public and a burden of unplanned maintenance costs for the agency. Many State Departments of Transportation (DOTs), therefore, check for segregation and density levels in their quality assurance (QA) programs. Traditional segregation check procedures are conducted visually or through sample cores from spots or streaks on the mat. However, it can be difficult to see concentrated, problematic areas, especially at night when paving often occurs. Testing through sample cores may not represent an entire project.
Format:

PDF
Collection(s):

Federal Highway Administration
Main Document Checksum:

[+]

urn:sha256:402143dd12f36063ab24fe942108431e96d02372f848dfb130a0cea68a04c209
Download URL:

https://rosap.ntl.bts.gov/view/dot/62677/dot_62677_DS1.pdf
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No Additional Files

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Spotlight on Pavement Uniformity: Using the Paver-Mounted Thermal Profiler (PMTP) for Asphalt Uniformity

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