Bridge deck patching material

In 2019, mdot was preparing to complete a bridge rehabilitation project including deck patching, thin epoxy overlays, expansion joint replacements, and pavement markings on 32 structures along i94, one of the states busiest traffic corridors. Weyers virginia polytechnic institute and state university blacksburg, virginia. Masteremaco t 545 quickset concrete roadway patching mortar. Bridge deck patching material evaluation journal of. Emcrete elastomeric concrete nosing and patching material. Polyester polymer concrete can achieve rapid 2 hour cure after placement, even in cold, humid conditions below 40f. Whenwhere to use use for full and partial depth repair of concrete pavements, parking structures and bridge deck repair, industrial floors, new slab construction, formed concrete work and grouting. Bridge decks with existing spalls andor delaminations greater than 5% of the deck area are typically not good candidates for polymeric overlays. Rapid concrete bridge deck protection, repair and rehabilitation m.

Complete deck replacement, although often the best for the bridge, is far from the most economical solution. Electronic directional display panels, variable message signs, flashing beacons. Bridge deck rehabilitation projects are frequently subject to large variations between the amount of deck repair shown on the plans and the actual deck repair work completed. Rapid bridge repair workshop holiday inn tanglewoodroanoke, virginia may 21 and 22, 2009.

With millions of square feet of bridge deck polyester concrete overlays placed, ppc 1121 has a successful history dating back to the first overlays placed in 1983. It is a biobased, nonhazardous, extremelylow voc product primarily used as a component of an expansion joint assembly either to fill blockouts on each side of an expansion joint gap, to repair a damaged expansion joint gap edge, as an impact. This allows for grade corrections if necessary, as well as a variety of uses from polyester concrete overlays, polyester concrete patching material, to high performance polyester concrete expansion joint headers and more. With the aging of bridges in pennsylvania, an increasing concern is the deterioration of concrete bridge decks over time, and subsequently, the best way to repair them. The spalls were located at the working bridge joints where movement broke out the ridged repair material. There are three imperatives for repairing cracked bridge decks.

This concrete repair and anchoring material uses a chemical action for quick curing. Furnish and install new reinforcement when directed. Bridge deck membrane patch coat is a slow setting, 100% solids, twocomponent polymer product. Both steel and concrete bridge advocates claim an advantage. Bridge deck overlay, additional, is material used to fill surface irregularities, beyond the design plan quantity, and shall be measured by the cubic yard. Michigan dot completes bridge rehab on expedited schedule. Other bridges in mo superstructure steel concrete bridge number 061 140 149 152 710 avg 028 057 069 520 avg year built 2008 2008 2008 2009 2010 avg 2009 2010 2011 2006 avg span length 50 50 40 62 64 53. Concrete repair manual texas department of transportation. Bridge decks require protection from chloride ion intrusion from deicing salts, as well as freeze thaw cycles and traffic erosion over time.

Excessive, wide cracking may also be an indication that a rigid overlay is a better treatment, if feasible. The payment will also be full compensation for the removal and disposal of material required to prepare the patch area, including chipping and hand cleaning, as well as furnishing and placing reinforcing steel. Bridge deck membrane patch coat is used for incidental patching and touchup. Epoxy repair mortars cornerstone construction material. Oct 31, 2019 the michigan dot mdot is a leader in bridge preservation and actively addresses deck distress to extend the lives of their bridges. Substructure patching includes patching those areas of the bridge not considered the bridge deck, such as abutments, pier columns, pier caps, barrier wall, wing walls, etc. Deck maintenance procedures bridge decks not only carry the traffic but also act as a shield to protect the rest of the structure. Among the design features that improve durability are optimum cover of the reinforcement not too small, not too large, good drainage, smaller skews, and thicker slabs. This item consists of furnishing the necessary labor, materials and equipment to repair concrete bridge decks, including the removal of all loose and unsound concrete, bituminous. Advantages durable patching material high compressive strength mix. Bridge deck spalls on this deck were repaired several times using another patching material that failed. Class s concrete is the best long term solution but can take several days to achieve sufficient strength. Repair of holes or deterioration must be done immediately and not delayed for approval at the time of the annual bridge inspection. Using this type of product requires some special considerations.

This includes furnishing and placing patching material to provide a new traffic surface. Therefore, a number of rapidsetting concrete patching materials have been used by penndot to repair areas of deterioration along the deck. Apply material over deck surface with broom, squeegee or low pressure spray. Consequently, decks may require more maintenance and repair than other bridge components.

Selection of high performance repair materials for. Fastrac ce700 hpc is an threecomponent system containing the finest hybrid polymer resins and blends of specially selected aggregates. Seal, replace, reconstruct, or eliminate deck joints. The following will describe the recommended procedure to use when installing meldek bridge deck membrane from w. Defining bridge deck repairs by speed required return to service.

Just east of the bridge is a traffic signal which causes continuous traffic braking, slowing. The bridge deck is the roadway portion of a bridge, including shoulders. Bridge deck spall repair page 2 of 5 when damage extends into the pcp portion of the deck then it should be treated as a fulldepth deck repair. This item shall consist of furnishing the necessary labor, materials and equipment to repair concrete bridge decks, including the removal of all loose and unsound concrete, bituminous. Rapid repair materials, deck sealing and other techniques for. Place patching material to the top of the existing bridge deck surfaces. If directed by the engineer, saw cut the area requiring patching or filling on decks not. Penndot patching materials are discussed, along with the astm tests that determine basic material properties of the chosen patch materials. Clean and then apply the bonding grout andor the patching material. Bridge deck overlay delamination a smooth textured surface identified on broken pieces of overlay and cores at the deckoverlay interface wheel path need a clean preneed a clean, prewet roughenedwet, roughened surface prior to placement expose at least 50% of the coarse aggregate.

The primary use of this section is to address unanticipated localized bridge deck damage that typically must be. Deck patching is a common practice used when bridge decks have local deterioration but do not yet warrant full replacement. A bridge floor is the entire length of the bridge from the roadway side of the mudwall or pile cap to the other roadway side of the mudwall or pile cap and the entire width from one coping edge across to the other coping edge. Selection of high performance repair materials for pavements. When opening to traffic prior to the patch achieving sufficient strength, cover the patch with steel plates as specified in 522. An elastomeric concrete nosing material, emcrete is flexible, durable, impact resistant.

Repair and patch materials repairpatch transpo industries. It is a biobased, nonhazardous, extremelylow voc product primarily used as a component of an expansion joint assembly either to fill blockouts on each side of an expansion joint gap, to repair a damaged expansion joint gap edge, as an impactabsorbing. When properly mixed, the reacted chemistry produces a highly engineered polymer concrete composite designed for bridge. Class k material is batched concrete designed specifically in deck repair applications.

The michigan dot mdot is a leader in bridge preservation and actively addresses deck distress to extend the lives of their bridges. The maintenance of bridge decks must be timely and performed to a high standard to prevent further deterioration and to protect the investment. Patching a bridge deck 14 bridge maintenance training march 2019 1 locate limits of repair 2 saw cut the perimeter 3 chip out poor concrete 4 clean exposed rebar 5 apply primer if required 6 mix and place patching material 7 open to traffic. Nov 06, 2010 deck patching is a common practice used when bridge decks have local deterioration but do not yet warrant full replacement. Rapid setting patch materials provide a quick and economical way to patch deteriorated areas without significant lane closure time. Ds15023 new developmental specifications for partial depth. Bridge deck patching materials with the aging of bridges in pennsylvania, an increasing concern is the deterioration of concrete bridge decks over time, and subsequently, the best way to repair them. Bridge deck patching material evaluation journal of bridge.

T17 methyl methacrylate mma polymer concrete patching material is designed for use on new construction and rehabilitation of bridge decks, expansion joints, bearing pads, concrete airfield. Chemical and physical techniques rapid concrete bridge deck protection, repair and rehabilitation michael m. For areas requiring patching or leveling, remove unsound concrete and other detrimental material, as determined by the engineer, using air chisels, scarifying machines, or milling. Ppc 1121 polyester polymer concrete kwik bond polymers. Specimens of the patching material mortars that have a crosssectional area of 1 inch 2. When properly mixed, the reacted chemistry produces a highly engineered polymer concrete composite designed for bridge deck overlays, patching, and resurfacing applications. Doody and rick morgan the results of a survey of polymerconcrete bridge deck installations test patch and overlay in new york and the results of a canvassing of the experiences of other states with these overlays are summarized. This is especially true for typical and short span bridge replacement projects. Primerless system and rapid strength development allow for fast return to traffic. Patching basf offers a variety of products and technologies for vertical and horizontal patching applications. Provide a type iii epoxy resin as defined in special provision 0717010 latest revision.

Sellars virginia transportation research council charlottesville, virginia richard e. Complete deck replacement, although often the best for the. The guide will cover recommended tools to use, deck preparation before membrane installation, the membrane installation, and the procedures to follow when placing the asphalt wearing course on the membrane. This includes furnishing and placing patching material to provide a. Largescale deck repair or replacement work should typically include projectspecific plans and be in accordance with item 422, concrete superstructures. See section 731 for handling of bridge deck patching. The amount of material will be the difference between the total volume of material placed and the theoretical volume of bridge deck overlay calculated based on the plan documents. Partial depth bridge deck patching consists of removing deteriorated. Specific performance type s astm c 494 antiwashout admixture army corps std.

Bridge deck intermediate bridge deck intermediate curing compound. Highway safety corp manufacturer of steel bridge railing and guardrails international specialties wood deck panels national signal, inc. A dot type grade concrete roadway repair and anchoring material, with a minimum initial set time of. Part a rapid set concrete patching materials cementitious, nonmetallic, nonstaining material. They are stored at a temperature of 73f 23c for 1 week, and their length is measured on day 1, day 3, and day 7. Innovative products, methods, and techniques used for deck. This work is in areas where the size, shape, and depth of patch depends on the. Rapid repair materials can generally be returned to service in 6 to 8 hours.

The deck is vulnerable to the effects of mechanical wear and weather. When scoping a deckpatching project, it is important to determine if the bridge type is either a structural deck or composite girder. Build up areas around the plates with asphalt material. Please click on the plus sign to view the lists of approved sika products per state. This work will consist of saw cutting the boundaries of the area to be patched, hand chipping the deteriorated concrete, preparing the patch and forming, finishing and. Outline of rapid treatments for bridge deck protection, repair. T17 methyl methacrylate mma polymer concrete patching material is designed for use on new construction and rehabilitation of bridge decks, expansion joints, bearing pads, and other concrete structures and is. Wet the surface with water, but prevent free standing water. Sommerville abstract the ohio department of transportation has identified the need to specify durable, more permanent high performing pavement and bridge deck patching materials. This section covers bridge deck repairs over relatively small areas. The bridge superstructure consists of the components that actually span the obstacle the bridge is intended to cross and includes the following.

Coat all abutting vertical edges in full depth patches with an epoxy resin bonding agent. Latex modified concrete bridge deck overlay standard. Patching overlays connections for prefabricated decks patching refer to list 31,hcc patching materials, vdot website. Bridge deck patching materials transportation research board. Apply material over deck surface with broom, squeegee or low pressure spray apply sufficient material to fill cracks broom excess material from valleys of texture before it gels treat individual cracks with small batches refer to vdot special provision for gravity filled polymer crack sealing and list 28 polymers. Major spall repair and concrete replacement description material repair procedure commentary 4. Repairing bridge deck cracks concrete construction magazine. The slower setting membrane allows material to be dispensed though duplex cartridges and finished by brush or trowel. Partial depth bridge deck patching consists of removing deteriorated bridge deck concrete in areas designated by the contract documents. Specialty products for bridge construction, repair. For a structural deck, the deck is the primary loadcarrying element from pier to pier, while for the composite beam bridge the deck participates in composite action with the beam or girder in carrying load from.

Class k material is batched concrete designed specifically in deck repair applications for accelerated strength gain and return to service, usually in less than 12 hours not including moist curing time. Concrete deck patching the need for deck patching is almost always caused by corrosion of the reinforcement. Only place construction joints on the perimeter of the removal areas. Rapid repair materials and construction rapid bridge.

When there are several nonstructural cracks on the bridge deck, crown polymers lowviscosity crown crack weld is an example of this type of product that has a proven service life. It is important to prepare a thorough inspection report. Following are the steps needed to apply a sealer to a bridge deck. As owners replace their bridge infrastructure, the question of life service and life cycle costs routinely comes up between concrete and steel bridge options. T17 rapid patch mma polymer concrete application video. Ds09072 replaces ds09061 developmental specifications for. Rapid repair materials and construction rapid bridge repair. The anticipated amount of deck patching cannot exceed 10%.