DEMONSTRATION PROJECT NO 33 BRIDGE DECK EVALUATION TECHNIQUES
In an effort to acquaint personnel with the latest evaluation techniques and procedures for concrete bridge decks, this project will discuss bridge deck deterioration, present a movie on the corrosion detection device, discuss and demonstrate evaluation techniques, evaluate a bridge deck and discuss the findings. Items to be demonstrated include the following: delamination detection, corrosion detection, concrete cover measuring, and concrete sampling and chloride analysis, and membrane testing. The delamination detector is an acoustical device in which the rebounding acoustical signal is recorded on a strip chart recorder. The rolling pachometer is a device that measures the depth of concrete over the top mat of reinforcing steel. The results are recorded on a strip chart recorder for permanent record. This device records data while being pushed at approximately 1 mph, thus decreasing the time for testing. A technique to obtain a pulverized concrete sample for chloride analysis will be demonstrated. The pulverized sample will then be subjected to a chemical analysis. A training film on the use of corrosion detection device will be presented and operation of the device will be demonstrated. The electrical resistivity technique for evaluating membranes will be discussed.
- See also FHWA Newsletter No. 2.
Washington, DC USA 20590
- Publication Date: 0
- Pagination: 4 p.
- TRT Terms: Bridge decks; Chemical analysis; Chlorine compounds; Concrete; Corrosion; Delamination; Demonstration projects; Detectors; Deterioration; Electrical resistivity; Evaluation; Measurement; Motion pictures; Testing
- Uncontrolled Terms: Membranes; Pachometers
- Old TRIS Terms: Detecting devices; Membranes (Biology); Resistivity
- Subject Areas: Bridges and other structures; Highways; Maintenance and Preservation;
- Accession Number: 00128799
- Record Type: Publication
- Files: TRIS, USDOT
- Created Date: Apr 21 1976 12:00AM