Methodology for Predicting the Reflection Cracking Life of Asphalt Concrete Overlays

Germann, Frederick P.; Lytton, Robert L.

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Methodology for Predicting the Reflection Cracking Life of Asphalt Concrete Overlays

1979-03-01
By Germann, Frederick P. ; Lytton, Robert L.

File Language:

English

Details

Creators:

Germann, Frederick P. ; Lytton, Robert L.
Corporate Creators:

Texas Transportation Institute. Texas A&M University
Corporate Contributors:

Texas State Department of Highways and Public Transportation ; United States. Department of Transportation. Federal Highway Administration
Subject/TRT Terms:
Publication/ Report Number:

FHWA/TX-79/09+207-5
Resource Type:

Tech Report
Geographical Coverage:

United States ; Texas
Edition:

Interim: September, 1974 - March, 1979
Corporate Publisher:

Texas Transportation Institute. Texas A&M University
Abstract:

An experimental testing procedure has been established in the report, for quantitative analysis of overlays designed to reduce reflection cracking. From this testing procedure the overlay scheme that shows the most resistance to cracking can be chosen. The procedure uses crack propagation tests on overlay samples which are conducted on a machine called the "overlay tester." This machine was specifically built to stimulate the displacements resulting from temperature changes in the cracked or jointed pavement or base materials that are beneath an overlay. Various types of overlay samples were investigated on the overlay tester. These include samples with fabric, such as "Petromat," and samples composed of different grades of asphalt, AC-5, AC-10, and AC-20; various gradations, open graded, dense graded, and hot sand mixes; and different overlay thickness of one, two, and three inches.
Format:

PDF
Funding:

2-8-75-207
Download URL:

https://rosap.ntl.bts.gov/view/dot/85613/dot_85613_DS1.pdf
File Type:

[PDF - 5.41 MB]
Collection(s):

US Transportation Collection
Main Document Checksum:

urn:sha-512:f4b4c5bae4dbf8974f3266adc02e429fece444e5fa1bd6f6b0f98bd55159b877876154659401edf8f618e75403460059b3435a179fcd7b0ebb933ecba216a65d

File Language:

English

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