Stabilization of Marginal Aggregates with Foamed Asphalt

Little, Dallas N.; Button, Joe W.

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Stabilization of Marginal Aggregates with Foamed Asphalt

1982-08-01
By Little, Dallas N. ; Button, Joe W.

File Language:

English

Details

Creators:

Little, Dallas N. ; Button, Joe W.
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-82/43+235-1
Resource Type:

Tech Report
Geographical Coverage:

United States ; Texas
Edition:

Interim: September 1977 - August 1982
Corporate Publisher:

Texas Transportation Institute. Texas A&M University
Abstract:

Four sands and one siliceous river gravel from various regions of Texas were stabilized with foamed asphalt to produce laboratory test specimens. Strength, stiffness and stability of these specimens were measured using common laboratory testing methods. Water susceptibility, temperature susceptibility and fatigue performance of these asphalt paving mixtures were also quantified. AASHTO structural layer coefficients of the foamed asphalt were calculated and compared to those established for bituminous stabilized bases at the AASHTO Road Test. Equivalent thicknesses were determined for these foamed asphalt mixtures. Based on available literature, foamed asphalt appears to be an economically attractive alternative for stabilization of pavement bases and subbases. However, laboratory results obtained in this study, utilizing marginal aggregates, suggest that foamed asphalt mixtures have low stabilities and poor fatigue performance when compared to conventional hot mix paving materials. In addition, the foamed asphalt mixtures have poor resistance to water susceptibility.
Format:

PDF
Funding:

2-9-78-235
Download URL:

https://rosap.ntl.bts.gov/view/dot/85694/dot_85694_DS1.pdf
File Type:

[PDF - 6.79 MB]
Collection(s):

US Transportation Collection
Main Document Checksum:

urn:sha-512:bbdbfcb4646aa7f32ea26964cffe406818d40d7911863667eb1ae809c00ad980f58ce340fd30e6af2d95054b6bb7971e2c83fa378fb87301763600c52085a813

File Language:

English

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