Evaluation of HighSlump Concrete for Bridge Deck

This proposed research will consist of a comparative evaluation of the effectiveness of three bridge deck sealers to resist the intrusion of moisture and waterborne chemicals into concrete bridge decks. The Maintenance Bureau of ALDOT currently relies on a penetrating epoxy sealer (Spec.

Study on evaluation method of mud-pumping of cement concrete bridge deck pavement Peiwen Hao⇑, Mengya Zhang, Qiang Zhang, Jinzhi Xu, Shi Dong Key Laboratory of Road Structure & Material, Ministry of Communication, PRC, Chang'an University, Xi'an 710064, China

Extended bridge deck joint spacing can be achieved up to 300 feet. Control joint spacing up to 150 feet in slab designs can be accomplished with up to a 95% reduction in joints to place, cut, treat, and maintain. Type K’s initial high slump makes it ideal for high volume pump productivity and produces a smooth, dense surface for sanitary

condition of bridge decks, decks of two bridges in Virginia were evaluated by 3D-GPR. For the comparison, and to a certain extent validation of 3D-GPR, sections of both bridge decks were tested and evaluated by impact echo (IE). The following sections of the report provide a brief description of 3D-GPR and IE technologies in bridge deck evaluation,

The deck concrete was a PennDOT approved high performance concrete (HPC) mixture used in bridge decks with a target 28 day compressive strength of 4 ksi. Extensive electronic instrumentation was used for deflection, concrete strain, crack width, and force measurement.

16-R15 - Evaluation of Bridge Deck With Shrinkage-Compensating Concrete; 16-R14 - Use of Lightweight Concrete for Reducing Cracks in Bridge Decks; 16-R13 - Reducing Cracks in Concrete Bridge Decks Using Shrinkage Reducing Admixture

Method 2 LMC overlays for Type 1 and 2 bridge deck repairs. 17. Key Words hydrodemolition, latex-modified concrete, overlay, slab 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. Security Classif

In 1994, the Wisconsin DOT began an evaluation of bridge decks overlaid with concrete and with HMA over a waterproof membrane. Both types of overlays demonstrated good performance and remained in service for up to 20 years.

Dec 15,  · Hybrid Prestressed Concrete Bridge Girders Using Ultra-High Performance Concrete: H.R. Hamilton. Gary R. Consolazio. University of Florida: William Potter: BDV31-977-101: 12/03/ : Cracking of Reinforced and Prestressed Precast Concrete Deck Panels on Florida-I Beam Bridges: A Crack Disposition Study: Sam Adeniji / Michelle Roddenberry

It leads to the corrosion and eventual deterioration of the deck system. The use of non-corrosive reinforcement is one alternative to steel in reinforced concrete construction. This report deals with the field evaluation and performance of a concrete bridge deck reinforced with carbon fiber reinforced polymer (CFRP) bars.

May 27,  · The Iowa Method for bridge deck overlays has been very successful in Iowa since its adoption in the 1970's. This method involves removal of deteriorated portions of a bridge deck followed by placement of a layer of dense (Type O) Portland Cement Concrete (PCC).

of the concrete and reinforcements. EM waves can penetrate through concrete layers and will be reflected from rebars, cracks, and the bottom surface of bridge decks. GPR applications in bridge deck evaluation include identifying concrete deterioration and rebar corrosion [13], void detection [14,15], locating cracks, and delamination [16].

The cracking of concrete bridge decks is a nationwide problem. The results of over 100 crack surveys on 40 monolithic composite concrete bridge deck placements supported by steel girders were used to evaluate the factors contributing to bridge deck cracking

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

evaluation of reinforcing bar (rebar) corrosion within concrete, we are exploring unique features in the dielectric and magnetic spectra of pure iron oxides and corrosion samples. Any signature needs to be both prominent and consistent in order to identify corrosion within concrete bridge deck or other structures. In order to measure the

The PSPA is a device for nondestructive evaluation of concrete bridge decks and pavements developed at the University of Texas at El Paso and produced by Geomedia Research and Development, Inc., El Paso, Texas. The PSPA device was designed and constructed as an extension result of the development of the Seismic Pavement Analyzer (SPA) for the

CRASH TEST AND EVALUATION OF RESTRAINED SAFETY-SHAPE CONCRETE BARRIERS ON CONCRETE BRIDGE DECK TTI Proving Ground 3100 SH 47, Building 7091 Test Report 9-1002-15-3Bryan, TX Cooperative Research Program in cooperation with the Federal Highway Administration and the

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

AND EARLY EVALUATION OF LOW-CRACKING HIGH-PERFORMANCE CONCRETE (LC-HPC) BRIDGE DECKS . By . James Lafikes . David Darwin . Matthew O'Reilly . A Report on Research Sponsored by . THE ACI FOUNDATION AND . CONSTRUCTION OF LOW -CRACKING HIGH-PERFORMANCE BRIDGE DECKS INCORPORATING NEW TECHNOLOGY -FUND PROGRAM-5(336) Structural Engineering and

Jan 09,  · • Take cores representative of the deck. • Determine the chloride content of the concrete with depth using cores. • Measure concrete carbonation depth using a pH indicator. • Determine extent of characteristic full depth cracking, and estimate the average spacing of the cracks per length of deck.

Aging bridge decks pose a risk to the public through corrosion of internal reinforcement. Internal reinforcement corrosion caused by water intrusion and/or chloride diffusion can result in concrete spalling/falling onto traffic below; development of potholes (driving hazards), or reduced carrying capacity of the bridge deck. Improved concrete

slump concrete would have to be used to provide an economically viable process for large-volume proj­ ects. A typical one-day bridge-deck resurfacing place­ ment is 15-183 m (50-600 ft) long and 4-7 m (14-22 ft) wide and uses 19-mm (0.75-in) slump concrete on a prepared (ground or scarified) surface. This con­

yard of concrete, it promotes corrosion of reinforcing steel which results also in deterioration of the bridge deck. This project was to evaluate bridge decks composed of two lay­ ers of portland cement concrete. The purpose of this was to better protect the steel

Bridges Made of Prestressed Beams, Prestressed Sub-deck .Panels, and Cast-in-Place Dec1 16. Abstract A relatively new type of beam and slab bridge which makes use of precast, prestressed ·panels as part of the slab was investigated. In this type of bridge construction, the panels are placed to span between the beams and

Abstract. This paper presents a new bridge deck slab flange-to-flange connection system for precast Deck Bulb Tee (DBT) girders. In prefabricated bridge system made of DBT girders, the concrete deck slab is cast with the prestressed girder in a controlled environment at the fabrication facility and then shipped to the bridge site.

Evaluation of the Effect of Explosion on the Concrete Bridge Deck Using LS-DYNA Due to serious damage of concrete structures caused by natural hazards and accidents, evaluating dynamic response of these structures is one of the most important objectives in the field of engineering.