The mobile concrete crushing attachments have shears with swinging jaws for crushing and breaking of concrete and reinforcing bars. The debris created in bridge deck removal, such as crushed concrete and pieces of reinforcing bars, are conventionally allowed to fall through a bridge frame to the road, railroad tracks, or river passing under the ...
Mar 03, 2021 After shear yielding of the bars, there is local crushing of the concrete and strength recovery as the bars develop catenary action. At larger relative deformation between the deck and steel tee shear slip, a concrete breakout failure occurs on the bottom of the concrete deck.
Oct 23, 2019 The criticality of evaluating this criterion stems from the fact that failure of the girders and crushing in the concrete deck could simply compromise the functionality and structural integrity of the bridge. The integrity, or lack of residual capacity, will depend on the level of redundancy in the bridge and the presence of alternative load ...
This 90,000 SF concrete structure included a steel-span basketball court on this total demolition. We utilized a concrete crusher for the 4,258 CY of concrete that was removed and recycled some of this material on site. The balance of the crushed concrete was used as
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Bridge decks Marine docks Asphalt and concrete roadway sections Hospitals Airport runways Whether a job involves creating an opening for future expansion, or the demolition and repair of a severely spalled section of bridge deck, selective demolition can be an important part of the successful completion of the project.
Rotec pioneered concrete placement with our conveyor systems. This original concept is now the proven method for RCC and conventional dams and can be customized for virtually any job. Port-o-Belt Conveyors The Port-o-Belt conveyor is made of lightweight aluminum extrusion and comes in two belt sizes. The 18 457 mm belt width can handle a
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 andor cracking of the concrete and epoxy based wearing surface.
Mar 31, 2021 New Screen Machine 4043TR Closed Circuit Impact Crusher, 40x43 Horizontal Shaft Impactor with 43 x 32 Feed Opening, Remote Lifting Lid on Crusher to Dislodge Bridged Materials, Heavy Duty 5x12 Two Deck Screen, CAT ACERT C9.38B 376NP Diesel Engine Tier IV Final, Wireless Remote-Controlled...
The Hydraram HCC-85V concrete crusher is used for the large joints of the bridge and viaducts. The crusher attachment is fitted to the Cat 385C which was also hired for this task. The crusher weighs approximately 8.5 tons and has a maximum opening of 1,830 mm.
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
Aggregate Technologies was called in to remove the top 1 to 3 of concrete over a 16,000 square foot area. Hydrodemolition is the ideal process for this type of work. High-pressure water jets remove concrete but keep the rebar intact. By adjusting the pressure and angle of the hydrobot, operators can remove just the right amount of concrete.
Bridge Deck Grooving, Bridge Demolition, Channeling, Concrete Chipping, Concrete Crushing, Concrete California San Diego and Imperial Counties California San Francisco Able Construction, Inc. California Contractors Equipment
Cracking of newly placed binary Portland cement-slag concrete adjacent to bridge deck expansion dam replacements has been observed on several newly rehabilitated sections of bridge decks. This paper investigates the causes of cracking by assessing the concrete mixtures specified for bridge deck rehabilitation projects, as well as reviewing the structural design of decks and the construction ...
A prefabricated concrete deck with dry joints between deck elements has been developed to make prefabricated bridges even more competitive. This type of bridge deck has been used on single span bridges in Sweden, and is now under development for multi span bridges. This paper describes how the deck system works.
Abstract This paper introduce the innovative application of finite element method in bridge-deck pavement on curved slope. Based upon Xian-Hanzhong Expressway in Qinling Mountains, the developed combination of FE models, including the overall and sub-model, study loading response of bridge-deck pavement on curved slope, and relate the mechanical analysis to structural parameters.
QMP Bridge Ride Incentive IRI Ride Bridge Contact BOS Design before using and to obtain the most recent version. 0418 Rapid Set Deck Repair This special provision describes furnishing, placing and curing a rapid setting non-shrink patch material on the sawed deck preparation areas of the concrete bridge deck. 1118 Scour Repair Grout
The bridges 16-year-old pavement was finally experiencing potholes, ruts and uneven surface areas that threatened to allow water in to the concrete decking. WSDOT engineers elected to remove the existing asphalt and membrane overlay from the bridge deck, repair deteriorated areas in the bridge deck, and apply a new membrane and asphalt overlay.
Nov 16, 2016 Bridge Deck 1.3.10 Bridge decks can be several different forms, as follows Concrete deck cast on site in situ deck. Beam and slab, with beams being precast concrete or steel, and the deck being concrete cast in situ. 1.3.11 In situ decks are generally constructed as follows Erecting formwork on staging to support the wet ...
2019 New McCloskey J40v2 Jaw Crusher CAT C7.1 Engine Track Mounted, Reversible Hydraulic Jaw Crusher Ideal for Rock Quarry, Gravel Pit or ConcreteAsphalt Recycling. Feed Opening 40 x 24 Crusher Speed 300 rpm Grizzly Feeder 12-7 x 37-4 Hopper Volume 7.4yd Stockpile Height Main C...
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Wagners Precast has the capability to manufacture products for bridges amp roads such as Girders, Deck Units, Piles, Parapets, Retaining Walls, Noise Walls amp Pit Lids. We have a large carousel production line located in one of our large undercover facilities that allows us to manufacture up to 312m of precast noise walls per day.
Mar 03, 2019 Crusher and pulverizer attachments, for example, best tackle jobs made up of mostly concrete. Choose a crusher if the structure is composed of concrete with little or no rebar and if its necessary to break the concrete into chunks large enough for easy sorting and recycling.