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  • Methods for Removing Concrete Decks from Bridge Girders

    methods for concrete deck removal that preserve bridge superstructures and substructures. Research Methodology • Review literature about removing concrete decks from concrete and steel girders including state-of-the-art and state-of-the practice for the following: • Deck removal methods and equipment • Steel girder damage and repair

    Bridge-Dek® stay-in-place bridge deck forming systems

    Suitable for new bridge construction and rehabilitation, Bridge-Dek® stay-in-place deck forming systems offer your project ease and speed of construction, safety, durability and longevity. Bridge-Dek is made of high-strength galvanized steel to meet design requirements of steel and concrete bridge structures.

    Concrete Pulverizer Concrete Crusher Attachment Kenco

    CONCRETE PULVERIZER. THE TOOL DESIGNED FOR CONTROLLED DEMOLITION AND RECYCLING OF CONCRETE SLABS, WALLS, BRIDGE DECKS, AND MORE! The Kenco pulverizer jaw requires no hydraulics for it to operate. The excavator’s bucket cylinder actuates the movable front jaw and crushes material against the stationary back jaw.

    Bridge Deck Grooving Tough Cut Concrete Service, INC

    Bridge Deck Grooving Our bridge grooving machines are equipped with diamond saw blades and efficient vacuums. The blades are mounted on a horizontal shaft, in one or two patterns, one being an even 3/4" spacing between blades or most commonly used IDOT specs referred to as random spacing.

    Methods for removing concrete decks from steel girder bridges

    Methods for removing concrete decks from steel girder bridges Hongtao Dang Iowa State University Follow this and additional works at:https://lib.dr.iastate.edu/etd Part of theCivil Engineering Commons This Thesis is brought to you for free and open access by the Iowa State University Capstones, Theses and Dissertations at Iowa State University

    BRIDGE DECK CRACKING LRRB

    Bridge deck cracks occur when the concrete deck changes in volume but is restrained from movement. The amount of volume change in the concrete is dependent on the properties and properties and . Transportation Research Synthesis Bridge Deck Cracking 2

    Bridge Deck Construction Manual

    Figure 2.1-1 Typical Deck Form Support for a Concrete Box Girder Bridge 2-1 Figure 2.1-2 Typical Deck Sheathing Supports on a Concrete Box Girder Bridge 2-2 Figure 2.1-3 Stay-in-Place Metal Forming on a Precast Girder Bridge 2-3 Figure 2.1-4 Example of a Slab Bridge 2-4 Figure 2.1-5 Example of a Steel Girder Bridge 2-4

    Tough Cut Concrete Service, INC Frankfort, Illinois

    Aug 15, 2016· Tough Cut is a full service certified as a WBE/MWRD/ DBE and DBE in DEMO CONSTRUCTION in the state of Illinois and DBE in the state of Indiana and certified (DBE) Florida Company equipped to handle all of your needs; Excavation & Demolition, Bridge Deck Grooving, Onsite Crushing & Recycling, Grinding, Saw Cutting, Green Saw Cutting, Wall Sawing

    Bridge Deck Cracking: Effects on In- Service Performance

    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.

    Lightweight Concrete VDOT Experiences for Bridge Decks

    • Over the Mattaponi River, 3,454-ft long bridge 2,195 ft with lightweight concrete beams and deck. • Over the Pamunkey River, 5,354-ft long bridge 2,169 ft with lightweight concrete beams and deck. • 200 and 240 ft spans in four-span spliced girders; and > 120 ft spans in continuous for LL units.

    Chapter 5 Concrete Structures Contents

    Concrete Structures Chapter 5 WSDOT Bridge Design Manual M 23-50.20 Page 5-3 September 2020 5. Class 4000P and 5000P Used for CIP piles, shafts and deep foundations where vibration is not feasible or practical. 6. Class 4000W Used underwater in seals. 7. Class 5000 or Higher Used in CIP post-tensioned concrete box girder construction, deep bridge

    4 Bridge Decks Design Guide for Bridges for Service Life

    4.3.2 Precast Concrete Bridge-Deck Systems Precast concrete bridge-deck systems are systems in which the concrete components for the bridge deck are produced in a controlled environment, minimizing variability in concrete uniformity of both material behavior and construction personnel per-

    BRIDGE DECK SERVICE LIFE PREDICTION AND COST

    and costs for maintaining concrete bridge decks for 100 years. With respect to service life estimates, a probability based chloride corrosion service life model was used to estimate the service life of bridge decks built under different concrete and cover depth specifications between 1969

    Bridge-Dek® stay-in-place bridge deck forming systems

    Suitable for new bridge construction and rehabilitation, Bridge-Dek® stay-in-place deck forming systems offer your project ease and speed of construction, safety, durability and longevity. Bridge-Dek is made of high-strength galvanized steel to meet design requirements of steel and concrete bridge structures.

    Bridge Deck Analysis & Monitoring: GPR Scanning, Infrared

    Each of the above bridge deck condition analysis and monitoring technologies complements each other by providing validation for the other while also providing information about different cycles of the degradation process of reinforced concrete. When applied specifically to bridge decks and other reinforced concrete elements, this multi-phase

    Allied-Gator MTR 50 C Cracker/Crusher Bridge Deck

    Nov 21, 2011· Time lapse video of the Allied-Gator patented MT® Series Multi-Tool model MTR 50, w/ patented Quick-Change™ Cracker/Crusher Jaw Set, demolishing a bridge deck.

    Bridge Deck Overlay Modified Concrete Suppliers, LLC

    d. Thoroughly clean the bridge deck surface by sand-blasting, shot-blasting and / or water-blasting (5,000 PSI minimum preferred method after hydrodemolition) the entire deck, curb line, new concrete, joints, deck drains and surfaces the new overlay will contact. Expose fine and coarse aggregate on new concrete surfaces. e.

    Bridge deck paving and finishing Concrete Construction

    Designed for versatility, deck pavers can spread, compact, and finish full-depth slabs or overlays Bridge deck paving and finishing machines View from beneath a deck paver shows different stages in the placing and finish-ing process. At left, augers spread the concrete to

    Reinforcement Alternatives for Concrete Bridge Decks

    reinforcement types for concrete bridge decks. Reinforcement types considered in this study consisted of Epoxy Coated Reinforcement (ECS), Stainless Steel Clad large cracks and localized crushing of concrete at the interior support. Consequently, while the final failure mode of all specimens was in diagonal shear, it is

    BRIDGE DECKS REINFORCED WITH FRP BARS

    bridge deck slabs reinforced with different types, ratios, and configurations of FRP bars. 3. EXPERIMENTAL PROGRAM . The balanced reinforcement ratio, ρ. b, of a concrete section is the reinforcement ratio at which a simultaneous rupture of FRP bars (yielding for steel) and crushing of concrete

    (PDF) Improving concrete bond in repaired bridge decks

    Pull-off tests on composite concrete test slabs and on repaired concrete bridge decks show that a good bond between old and new concrete can be obtained without expensive connecting dowels if

    BRIDGE DECKS: SURFACING AND JOINT OPTIONS

    Bridge Decks: Surfacing and Joint Options. 3. Bridge Deck Surfacing Options: • Penetrating Concrete Surface Treatment Silane (DMS 8140) • Flood Coats Epoxy or Methacrylate (DMS 6100 TY IV) • Multi-Layer Polymer Overlay (MLPO) • Polyester Polymer Concrete (PPC) • Bonded Concrete Overlays (BCO) • Latex Modified Concrete

    Preventive Maintenance of Concrete Bridge Decks

    The American Concrete Institute. Founded in 1904 and headquartered in Farmington Hills, Michigan, USA, the American Concrete Institute is a leading authority and resource worldwide for the development, dissemination, and adoption of its consensus-based standards, technical resources, educational programs, and proven expertise for individuals and organizations involved in concrete design

    Premature Cracking of Concrete Bridge Decks: Causes and

    • Concrete settlement cracking is not likely to have occurred in the bridge decks examined because their bar cover was relatively deep and their slump was relatively low [see NCHRP Report 297: Evaluation of Bridge Deck Protective Strategies (5)]. The cover depth was from 70 to 76 mm (2.75 to 3.0 in.) and slump was 51 to 102 mm (2 to 4 in.).

    Concrete Primer Bridge Preservation LLC

    Bridge Deck Concrete Primer is a fast setting 1:1 mix ratio that can be mixed by hand or pumped through plural component equipment. Bridge Deck Concrete Primer may be used with all Bridge Preservation rapid curing sealants and spray coatings systems. It is designed for use in both interior and exterior concrete or other porous masonry coating

    Concrete Repair Manual: Bridge Deck Repair

    Section 4: Bridge Deck Repair Anchor: #i1004033 Description. Distress can also occur in the cast-in-place sections of deck above precast concrete panels (PCP’s). Regardless of the severity, when performing deck repairs in such cases the cast-in-place portion should be removed to expose the top of the PCP, which then becomes the bonding

    BRIDGE DECK SERVICE LIFE PREDICTION AND COST

    and costs for maintaining concrete bridge decks for 100 years. With respect to service life estimates, a probability based chloride corrosion service life model was used to estimate the service life of bridge decks built under different concrete and cover depth specifications between 1969

    TRANSVERSE SLAB REINFORCEMENT DESIGN OF CONCRETE

    reinforcement of 0.3% within the deck slab. UK Bridge deck design New design approach proposed by Kirkpatrick, Rankin and Long [64] which was validated by full-scale bridge test in 1986 [65] prompted the initiation of new rules for economical design of reinforced concrete bridge decks in the Northern Ireland [66]. The approach was then

    Waterproofing of Bridge Decks The Latest Technique and

    In other words, if a protection layer is introduced over the bridge deck concrete surface in form of a dependable water proofing system. Bridge Decks: Waterproofing Choice The waterproofing of bridge decks is recognized in many European countries as a vital and necessary operation to enhance the durability and longevity of the life of bridge.

    Allied-Gator MTR 50 C Cracker/Crusher Bridge Deck

    Nov 21, 2011· Time lapse video of the Allied-Gator patented MT® Series Multi-Tool model MTR 50, w/ patented Quick-Change™ Cracker/Crusher Jaw Set, demolishing a bridge deck.

    BRIDGE DECKS: SURFACING AND JOINT OPTIONS

    Bridge Decks: Surfacing and Joint Options. 3. Bridge Deck Surfacing Options: • Penetrating Concrete Surface Treatment Silane (DMS 8140) • Flood Coats Epoxy or Methacrylate (DMS 6100 TY IV) • Multi-Layer Polymer Overlay (MLPO) • Polyester Polymer Concrete (PPC) • Bonded Concrete Overlays (BCO) • Latex Modified Concrete

    Concrete Repair Manual: Bridge Deck Repair

    Section 4: Bridge Deck Repair Anchor: #i1004033 Description. Distress can also occur in the cast-in-place sections of deck above precast concrete panels (PCP’s). Regardless of the severity, when performing deck repairs in such cases the cast-in-place portion should be removed to expose the top of the PCP, which then becomes the bonding

    Waterproofing of Bridge Decks The Latest Technique and

    In other words, if a protection layer is introduced over the bridge deck concrete surface in form of a dependable water proofing system. Bridge Decks: Waterproofing Choice The waterproofing of bridge decks is recognized in many European countries as a vital and necessary operation to enhance the durability and longevity of the life of bridge.

    Lifting of GFRP Precast Concrete Bridge Deck Panels

    The Utah Department of Transportation decided to evaluate GFRP bars as an alternative to steel bars for reinforcing the bridge deck. The precast concrete panels were 12.62-m long, 2.08-m wide, and 235-mm thick and were reinforced entirely with GFRP bars. The bridge deck panels were lifted from the underside at four points using steel cables

    Premature Cracking of Concrete Bridge Decks: Causes and

    • Concrete settlement cracking is not likely to have occurred in the bridge decks examined because their bar cover was relatively deep and their slump was relatively low [see NCHRP Report 297: Evaluation of Bridge Deck Protective Strategies (5)]. The cover depth was from 70 to 76 mm (2.75 to 3.0 in.) and slump was 51 to 102 mm (2 to 4 in.).

    TRANSVERSE SLAB REINFORCEMENT DESIGN OF CONCRETE

    reinforcement of 0.3% within the deck slab. UK Bridge deck design New design approach proposed by Kirkpatrick, Rankin and Long [64] which was validated by full-scale bridge test in 1986 [65] prompted the initiation of new rules for economical design of reinforced concrete bridge decks in the Northern Ireland [66]. The approach was then

    Concrete Primer Bridge Preservation LLC

    Bridge Deck Concrete Primer is a fast setting 1:1 mix ratio that can be mixed by hand or pumped through plural component equipment. Bridge Deck Concrete Primer may be used with all Bridge Preservation rapid curing sealants and spray coatings systems. It is designed for use in both interior and exterior concrete or other porous masonry coating

    ACI 345R-11 Guide for Concrete Highway Bridge Deck

    Title: ACI 345R-11 Guide for Concrete Highway Bridge Deck Construction Author: ACI Committee 345 Subject: The service-life performance of concrete bridge decks, including maintenance, repair, and rehabilitation needs, is directly related to the care exercised from the preconstruction through post-construction period.

    SECTION 3 Bridge Decks

    Guideline for Rating Cantilever Portions of Concrete Bridge Decks Usually, deck overhangs at the exterior girder do not control the slab rating. However, the rater should use judgment in determining if the overhang should be rated. A criteria that may be used is: Rate the cantilever portion of the concrete bridge deck if the wheel load can be

    Bridge Deck Concrete Primer Bridge Preservation LLC

    Bridge Deck Concrete Primer is a specially formulated two-component polymer product. In its basic low viscosity formulation, Bridge Deck Concrete Primer will penetrate concrete substrates. Bridge Deck Concrete Primer is a fast setting 1:1 mix ratio that can be mixed by

    A Pilot Study on Structural Responses of Normal Concrete

    Ultra-high-performance concrete (UHPC) is already gaining in-field applications in bridge deck rehabilitation. On the other aspect, an innovative NC-UHPC composite deck system was motivated to promote accelerated bridge construction (ABC) implementation of a newly built bridge, of which the precast UHPC substrate serves as the formwork for the cast-in-place NC overlay.

    Finite-element modeling of UHPC hybrid bridge deck

    Jul 17, 2018· In recent years, linked bridge deck elements have gained popularity for facilitating more durable components in bridge decks, but these components require field-applied connections for constructing the entire bridge. Ultra-high-performance concrete (UHPC) is started to be a major material for closure pours in bridges and various Department of Transportations have been developing guidelines.

    Instrument for Detecting Delamination in Concrete Bridge

    A Study of Reinforced Concrete Bridge Deck Deterioration: Diagnosis, Treatment and Repair Research Study Number 2-18-68~130 Sponsored by The Texas Highway Department In Cooperation with the This minor crushing of surface grains is similar to that which would result from dragging the tip of a steel bar along the deck.

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