The Effect of Varying the Modulus and Thickness of Asphaltic Concrete Surfacing Materials

Lu, Danny Y.; Scrivner, Frank H.; Texas Transportation Institute. Texas A&M University; University of Texas at Austin. Center for Highway Research

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ROSA P serves as an archival repository of USDOT-published products including scientific findings, journal articles, guidelines, recommendations, or other information authored or co-authored by USDOT or funded partners. As a repository, ROSA P retains documents in their original published format to ensure public access to scientific information.

i

The Effect of Varying the Modulus and Thickness of Asphaltic Concrete Surfacing Materials

1974-10-01
By Lu, Danny Y. ; Scrivner, Frank H.

[PDF-1.49 MB]

English

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Creators:

Lu, Danny Y. ; Scrivner, Frank H.

Lu, Danny Y. ; Scrivner, Frank H. Less -
Corporate Creators:

Texas Transportation Institute. Texas A&M University ; University of Texas at Austin. Center for Highway Research

Texas Transportation Institute. Texas A&M University ; University of Texas at Austin. Center for Highway Research Less -
Corporate Contributors:

Texas Highway Department ; United States. Department of Transportation. Federal Highway Administration

Texas Highway Department ; United States. Department of Transportation. Federal Highway Administration Less -
Subject/TRT Terms:

[+]

Asphalt Concrete Flexible Pavements Linear Elasticity Modulus Of Elasticity Surfacing Thickness
Publication/ Report Number:

123-24
Resource Type:

Tech Report
Geographical Coverage:

United States ; Texas

United States ; Texas Less -
Edition:

Interim - September 1971 - October 1974
Corporate Publisher:

Texas Transportation Institute. Texas A&M University ; University of Texas at Austin. Center for Highway Research

Texas Transportation Institute. Texas A&M University ; University of Texas at Austin. Center for Highway Research Less -
Abstract:

Presented in this report is a theoretical study of the effects of varying the modulus and thickness of asphalt concrete surfacing materials. Three typical flexible pavement design problems at two levels of hot mix asphaltic concrete (HMAC) elastic modulus are analyzed using linear elastic theory. Specific findings are: (1) the use of an HMAS modulus which is much higher than the base course modulus, is discouraged, (2) if a high HMAC - base course modular ratio cannot be avoided, then one should avoid the range from 1 inch to 6 inches of HMAC thickness, and (3) the softening of the base material immediately under the surface layer results in higher tensile stresses at the bottom of the surface layer, and accelerates fatigue deterioration of the pavement.
Format:

PDF
Funding:

1-8-69-123
Collection(s):

US Transportation Collection
Main Document Checksum:

[+]

urn:sha-512:944f4e954ac414b65fddd8cda77bff6cd5b81a30c45907c625b547a2b10f9f9e264dd93c9cfc42c0651724ad0cebd67d62162aa245768e182fc4e1b56437f1ae
Download URL:

https://rosap.ntl.bts.gov/view/dot/81815/dot_81815_DS1.pdf
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The Effect of Varying the Modulus and Thickness of Asphaltic Concrete Surfacing Materials

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