Details:

Creators:
Crovetti, James A.
Corporate Creators:
Marquette University. Transportation Research Center
Subject/TRT Terms:
[+]
Hot Mix Asphalt Load Tests Pavements, Asphalt--Wisconsin--Testing Perpetual Pavements
Publication/ Report Number:
FEP 01-09
Resource Type:
Tech Report
Geographical Coverage:
Wisconsin
Edition:
Final report; June 2005-Apr. 2009.
Corporate Publisher:
Wisconsin. Dept. of Transportation. Bureau of Technical Services
Abstract:
This report presents the findings of a research study conducted to investigate the structural performance of a 275 mm hot

mix asphalt perpetual pavement constructed as part of the WIM bypass lane at the Kenosha Safety & Weigh Station

Facility. Two separate test sections were constructed using variable binder types and in-place air voids. Asphalt strain

sensors were fabricated at Marquette University and installed during the construction of the HMA pavement. Sensors were

positioned within the outer wheel path and located at the bottom of the 275 mm HMA pavement and at the interface

between the lower layers at a depth of approximately 175mm from the surface. Strain sensors were oriented in both the

transverse and longitudinal directions. A total of 16 strain sensors were installed during construction. Of these, only three

survived to provide strain data under traffic loadings.

Deflection data obtained from FWD testing was used as comparative measures to strain measurements obtained during

testing and to estimate the combined dynamic HMA layer moduli at the time of testing and to develop monthly trends of

dynamic HMA layer moduli as a function of the expected mean monthly mid-depth pavement temperature. A comparative

analysis of measured strains to those predicted from FWD measurements provided generally good agreement. A

mechanistic appraisal of the constructed test sections was completed using the outputs of the EVERSTRESS pavement

analysis program. This analysis computed the expected monthly damage induced by the application of 521,000 monthly

ESAL loadings. The results of the mechanistic appraisal indicate the expected service life to 50% bottom-up fatigue

cracking is in excess of 90 years for sections with air voids of 4% within the lower layers. If the air void content increases

to 5% - 6% in the lower layers, the expected fatigue life may be significantly reduced to between 13 – 32 years.


Format:
PDF
Funding:
FEP-02-02
Collection(s):
US Transportation Collection
Main Document Checksum:
[+]
urn:sha256:b27112b57d46b2457b3193b2147d70c199d24a6b12c0ca44b65a77a5be5200c4
Download URL:
https://rosap.ntl.bts.gov/view/dot/17224/dot_17224_DS1.pdf
File Type:

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