Evaluation of deterioration of structural concrete due to chloride intrusion and other damaging mechanisms.

Howell, Brian; Hopwood II, Theodore; Palle, Sudhir; University of Kentucky Transportation Center

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Evaluation of deterioration of structural concrete due to chloride intrusion and other damaging mechanisms.

2015-09-01
By Howell, Brian ; Hopwood II, Theodore ; Palle, Sudhir

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Creators:

Howell, Brian ; Hopwood II, Theodore ; Palle, Sudhir

Howell, Brian ; Hopwood II, Theodore ; Palle, Sudhir Less -
Corporate Creators:

University of Kentucky Transportation Center
Corporate Contributors:

United States. Federal Highway Administration
Subject/TRT Terms:

[+]

Alkali Silica Reactions Chlorides Concrete Bridges Corrosion Deterioration Field Tests Inspection Laboratory Tests Reinforcing Steel
Publication/ Report Number:

KTC-14-03/SPR10-406-1F
Resource Type:

Tech Report
Geographical Coverage:

Kentucky
Corporate Publisher:

Kentucky. Transportation Cabinet
Abstract:

Kentucky's bridges continue to age and experience distress. The intrusion of chlorides into

concrete remains the primary mechanism for deterioration. It leads to reinforcing steel corrosion

that damages the adjoining concrete structure. This study found problematic chloride

concentrations in Kentucky concrete bridge elements (decks, pier caps, abutments). Chloride

levels have been found at concentrations sufficient to initiate reinforcing steel corrosion. In some

cases, chloride concentrations were sufficient to cause accelerated corrosion and produce major

section loss of reinforcing steel. Advanced stages of corrosion such as these typically require

costly repairs and maintenance to extend the service life of bridges.

Field inspections and laboratory analyses conducted during this study verified the ongoing

problem of concrete deterioration across bridges within Kentucky's transportation network.
Format:

PDF
Funding:

KYSPR 10-406
Collection(s):

US Transportation Collection
Main Document Checksum:

[+]

urn:sha256:6d8accb7d8bc601ae8075452b508fedc061e8e4b85992b03320d46918cb56f8a
Download URL:

https://rosap.ntl.bts.gov/view/dot/29539/dot_29539_DS1.pdf
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Evaluation of deterioration of structural concrete due to chloride intrusion and other damaging mechanisms.

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