application of the overlay, the deck was milled to a depth of 0.5 inches (13 mm) and the areas of unsound concrete were removed. The cavities from th e removal of the unsound concrete were filled with the overlay concrete. The general slope of the bridge for water runoff appears to

Jan 25,  · und0802final 1. i Final Report Evaluation of Self-Consolidating Concrete (SCC) for Use in North Dakota Transportation Projects By * Dr. Iraj H.P. Mamaghani (Principal Investigator) * Dr. Charles Moretti (Co- Principal Investigator) ** Dave Sethre (Co- Principal Investigator) * Bruce A. Dockter (Laboratory Technician) * Department of Civil Engineering University of North Dakota 243 Centennial

concrete used to construct the deck. While the typical Class D concrete that is used for bridge deck construction (new or replacement) is high quality, significant improvement is possible when considering permeability. While several options are available to improve the permeability of a particular concrete

A number of NDT technologies are currently used in bridge deck evaluation. A survey of literature suggests that the most commonly used NDT methods in onsite assessment and evaluation of reinforced concrete bridge decks are impact echo (IE), seismic or ultrasonic pulse velocity (PV), ground penetrating radar (GPR), infrared thermography

Jan 17,  · Case Study: Salt Creek Bridge #02071A • Structure had “dense cracking” and approx. 20 sq. ft. of delaminations in span 1 prior to thin overlay installation in 2011. • Since overlay installation, approximately 20% of the surface of the deck exhibits extensive spalling and/or cracking of the concrete and epoxy based wearing surface.

A research is underway in the University of Texas at Arlington (UTA) to carry out a load testing evaluation of a precast prestressed I-girder concrete bridge with deck panel failures, located in Terrel, TX. It is a research which focuses on understanding the failure behaviour of precast concrete panels (PCPs) in composite concrete bridge decks.

would lead to heavier bridge rails and stronger deck overhangs, which will increase the costs for bridge construction. This report presents a modified approach to the yield line method that accounts for momentum transfer and concrete rail deformation to determine barrier capacities.

Several sources of cracking for concrete bridge deck overlays have been identified [2, 3, 7]. Concrete bridge decks and deck overlays may develop cracks whenever the tensile stresses (induced by either internal or external sources) exceed the tensile strength of the concrete.

delaminated area of the bridge deck and a noncontact means for evaluating bridge deck concrete pavements with relatively fast inspection rates. The main drawbacks of infrared thermography are Review of Progress in Quantitative Nondestructive Evaluation. Vol. 18 Edited by Thompson and Chimenti. Kluwer Academic/Plenum Publishers, 1999 2137

Aug 01,  · This research also sought to develop an improved method for future evaluation of bridge deck sealer products for the Alabama Department of Transportation (ALDOT). The sealer products were evaluated for their resistance to moisture and chloride ingress, performance after simulated traffic wear, and depth of sealer penetration into the concrete.

Bridge deck, concrete cracking, field inspections, long-term performance, bridge deck deterioration modeling, deck performance database 18. Distribution Statement No restrictions. This document is available from the National Technical Information Service, Springfield, VA 22161 19. Security Classif. (of this report) Unclassified 20.

Concrete, Deck, Cracking, Cracks, Transverse, Bridges, Causes of Cracking, Control of Cracking Unclassified Unclassified 204 FHWA-NJ-2002-019 M. Ala Saadeghvaziri and Rambod Hadidi Cause and Control of Transverse Cracking in Concrete Bridge Decks Department of Civil and Environmental Engineering New Jersey Institute of Technology

A number of NDT technologies are currently used in bridge deck evaluation. A survey of literature suggests that the most commonly used NDT methods in onsite assessment and evaluation of reinforced concrete bridge decks are impact echo (IE), seismic or ultrasonic pulse velocity (PV), ground penetrating radar (GPR), infrared thermography

A research program was conducted to evaluate the design recommendations for transverse post-tensioning of bridge decks developed in the FHWA/IN/JTRP/2002-26 (SPR-2409) report. The test specimen consisted of a 40x18 ft cast-in-place concrete deck on precast pretensioned girders. Thirty-two tests were carried out by applying different distributions of transverse post-tensioning force, in

2. A few of the traditional bridge decks performed similar to the performance based bridge decks. 3. Only one of the 15 performance based concrete decks in the study had a high intensity of cracking (Steel Girder Bridge).

AN EVALUATION OF CONCRETE BRIDGE DECK SURFACING IN IOWA April, 1975 By Jerry V. Bergren Portland Cement Concrete Engineer & Bernard C. Brown Testing Engineer 515-296-1237. SPECIAL NOTE This report is essentially a reprint of the original report dated June, 1974.

Table 3.4 Compressive Strengths of Low Permeable Bridge Mixes 23 Table 4.1 Concrete Mix Design Requirements for Bridge Decks 27 Table 4.2 Exact Locations of Thermocouples on Bridge Decks 31 Table 4.3 Concrete Data Collected in the Field for the 9th Ave. Bridge 34

Title: Evaluation of Bridge Deck Overlays Author(s): Rachel J. Detwiler, Tony Kojundic, and per Fidjestøl Publication: Concrete International Volume: 19 Issue: 8 Appears on pages(s): 43-45 Keywords: bridge decks; chlorides; deicers; perme ability; repairs; resurfacing; silica fume; Date: 8/1/1997 Abstract: This field and laboratory evaluation of a repaired bridge deck in Southern Illinois is

Abstract. Repairing a concrete bridge deck should result in a composite concrete deck whose strength is at least as high as the original monolithic deck. The strength of the composite deck depends

Oct 26,  · Evaluation and next steps. At the end of the one-year test, the Authority will drill core samples into the bridge deck and pull on the cores to see where they break. “The goal is for the core sample to break somewhere within the original concrete deck.

Installation of new steel curb rail, anchored into existing concrete deck; Placement of armour stone along the pier (north side of channel, west of the entrance to ensure stability of the existing structure (July 5, : Removed from scope of project) South Pier: Pumping high slump concrete below existing concrete deck (in eroded area).