Feasibility of Using Sewage Sludge in Highway Embankment Construction

Kawam, A.; Smith, L.M.; Ross, J.; Larew, H.G.; Rude, L.; United States. Federal Highway Administration. Office of Research and Development; Gillette Research Institute

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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.

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Feasibility of Using Sewage Sludge in Highway Embankment Construction

1975-02-01
By Kawam, A. ; Smith, L.M. ; Ross, J. ; ...

[PDF-1.42 MB]

English

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Details:

Creators:

Kawam, A. ; Smith, L.M. ; Ross, J. ; Larew, H.G. ; Rude, L.

Kawam, A. ; Smith, L.M. ; Ross, J. ; Larew, H.G. ; Rude, L. Less -
Corporate Creators:

United States. Federal Highway Administration. Office of Research and Development ; Gillette Research Institute

United States. Federal Highway Administration. Office of Research and Development ; Gillette Research Institute Less -
Subject/TRT Terms:

[+]

Building Materials Calcium Calcium Oxide Calcium Sulfates Clay Compressive Strength Durability Embankments Feasibility Analysis Fills Fly Ash Geotechnology Highways Land Reclamation Leaching Lime Lime Fly Ash Permeability Salvage Sewage Collection Sewage Holding Tanks Sewage Sludge Sewage Treatment Sewerage Sludge (Deposit) Soil Soil Stabilization Solid Waste Disposal Subject Areas: Construction Sulfate Waste Trace Elements Waste Disposal Waste Utilization Water Pollution
Publication/ Report Number:

FHWA-RD-75-38, Intrm Rpt., FCP 34C2-022
Resource Type:

Tech Report
Geographical Coverage:

United States
TRIS Online Accession Number:

00092025
Edition:

Interim Report
Contracting Officer:

Ormsby, W. C.
Corporate Publisher:

United States. Federal Highway Administration
Abstract:

A laboratory evaluation of the feasibility of utilizing sewage sludge in construction of a highway embankment was conducted. Mixtures composed of lime, fly ash, waste calcium sulfate and up to 17 percent sewage sludge were evaluated. The effect of lime type, fly ash source and the relative proportions of lime, fly ash and waste calcium sulfate on compressive strength of compacted specimens was measured. Using the criterion that the 28-day compressive strength should be 50 p.s.i. (345 kN/m2) greater than that of uncured specimens, over 75 percent of the formulations examined passed this test. Two soils, one sandy and the other clayey, were used to replace 30, 50 and 70 percent of the fly ash in selected formulations. All samples with the soil replacement exceeded the minimum strength gain criterion. Selected formulations were further evaluated for volume change, durability, permeability and leachability. Both freeze-thaw resistance and wet-dry stability were measured and determined to be marginal. The permeability was found to be low, of the order of 10-6 cm/sec. Analysis of the leachate from the permeability tests indicated that the heavy metals present in the sewage sludge--cadmium, chromium, mercury and zinc--were retained in the mixture. However, lime and gypsum did increase the pH and calcium and sulfate ion concentrations in the leachate.
Format:

PDF
Funding:

DOT-FH-11-8122
Collection(s):

Federal Highway Administration
Main Document Checksum:

[+]

urn:sha256:1c0205e34ad838fb5316d5215e0f6e169ab9a51ce02faef45a5f9d2226a460ba
Download URL:

https://rosap.ntl.bts.gov/view/dot/36584/dot_36584_DS1.pdf
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Feasibility of Using Sewage Sludge in Highway Embankment Construction

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