Distribution of Chloride, Ph, Resistivity, and Sulfate Levels in Backfill for Mechanically-Stabilized Earth Walls and Implications for Corrosion Testing : [Summary]

Gunaratne, Manjriker; University of South Florida

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Distribution of Chloride, Ph, Resistivity, and Sulfate Levels in Backfill for Mechanically-Stabilized Earth Walls and Implications for Corrosion Testing : [Summary]

2015-04-01
By Gunaratne, Manjriker

[PDF-934.74 KB]

English

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Details:

Creators:

Gunaratne, Manjriker
Corporate Creators:

University of South Florida
Subject/TRT Terms:

[+]

Backfill Soils Chlorides Corrosion Earth Walls Electrical Resistivity PH Value Recommendations Sulfates
Publication/ Report Number:

BDV25-977-03
Resource Type:

Brief
Geographical Coverage:

Florida
Corporate Publisher:

Florida. Dept. of Transportation
Abstract:

Road construction projects often require mechanically stabilized earth (MSE), earthwork construction in which soil is retained by walls and reinforced with wire mesh, metal strips, and structural geosynthetics (geotextile or geogrid). The fill soil for these projects, as it leaves the source, must meet Florida Department of Transportation (FDOT) standards: it must be nonplastic, have a low liquid limit, low organic matter, and low fine particle content. Fill soil must also be noncorrosive, and it is tested for corrosive properties — pH, minimum resistivity, chloride, and sulfate levels — both at the source and after it is placed and compacted, as a quality assurance measure. However, variability in current sampling and analysis methods can result in delays in accepting or rejecting backfill at a specific work site or in inadvertently accepting corrosive soil, with future, costly maintenance issues
Format:

PDF
Collection(s):

US Transportation Collection
Main Document Checksum:

[+]

urn:sha256:5eb49d0fe224cf05b38775187f0eac2f4e68deedc00162db4bcbf3df880e539d
Download URL:

https://rosap.ntl.bts.gov/view/dot/28916/dot_28916_DS1.pdf
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Distribution of Chloride, Ph, Resistivity, and Sulfate Levels in Backfill for Mechanically-Stabilized Earth Walls and Implications for Corrosion Testing : [Summary]

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