Design and evaluation of foamed asphalt base materials.

Schwartz, Charles W.; Khosravifar, Sadaf; University of Maryland (College Park, Md.). Dept. of Civil and Environmental Engineering

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Design and evaluation of foamed asphalt base materials.

2013-05-01
By Schwartz, Charles W. ; Khosravifar, Sadaf

[PDF-2.25 MB]

English

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Details:

Creators:

Schwartz, Charles W. ; Khosravifar, Sadaf

Schwartz, Charles W. ; Khosravifar, Sadaf Less -
Corporate Creators:

University of Maryland (College Park, Md.). Dept. of Civil and Environmental Engineering
Subject/TRT Terms:

[+]

Asphalt Pavements Base Course (Pavements) Best Practices Dynamic Modulus Of Elasticity Field Tests Foamed Asphalt Laboratory Tests Mix Design Modulus Of Deformation Stiffness
Publication/ Report Number:

MD-13-SP909B4E
Resource Type:

Tech Report
Geographical Coverage:

Maryland
Corporate Publisher:

Maryland. State Highway Administration. Office of Policy & Research
NTL Classification:

NTL-HIGHWAY/ROAD TRANSPORTATION-Pavement Management and Performance;NTL-HIGHWAY/ROAD TRANSPORTATION-Design;
Abstract:

Foamed asphalt stabilized base (FASB) combines reclaimed asphalt pavement (RAP), recycled

concrete (RC), and/or graded aggregate base (GAB) with a foamed asphalt binder to produce a

partially stabilized base material. The objectives of this study are to determine for Maryland

conditions: (a) FASB mix design procedures; (b) typical engineering and structural design

properties; (c) guidelines for FASB production and placement; and (d) best practices for

construction quality assurance. The study consisted of three major components: (a) laboratory

evaluation of FASB mix design procedures; (b) field evaluation of in-place FASB stiffness, and

especially the increase in this stiffness with time due to curing; and (c) direct laboratory

measurement of the performance related properties of FASB, specifically dynamic modulus and

permanent deformation resistance. Recommended default design values for resilient modulus and

structural layer coefficient are 300 – 400 ksi and 0.30 – 0.35, respectively. The study findings also

provided guidance for the development of draft specifications.
Format:

PDF
Funding:

SP909B4E
Collection(s):

US Transportation Collection
Main Document Checksum:

[+]

urn:sha256:a1d32452638237a8c4deeb760f5638b48f12576265679297c5d7896082c8f1de
Download URL:

https://rosap.ntl.bts.gov/view/dot/23431/dot_23431_DS1.pdf
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Design and evaluation of foamed asphalt base materials.

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