Bridge Deck Methacrylate Resin Treatment BRIDGE DECK METHACRYLATE RESIN TREATMENT
Part 1 — General
1.1 Section Includes
A.A high molecular weight methacrylate (HMWM) resin treatment applied to bridge decks and approach slabs.
1.2 RELATED SECTIONS Not Used
1.3 References
A.AASHTO T 278: Surface Frictional Properties Using the British Pendulum Tester
B.ASTM C 882: Bond Strength of Epoxy -Resin Systems Used With Concrete by Slant Shear
C.ASTM D 323: Vapor Pressure of Petroleum Products (Reid Method)
D.ASTM D 638: Tensile Properties of Plastics
E.ASTM D 1475: Density of Liquid Coatings, Inks, and Related Products
F.ASTM D 2196: Rheological Properties of Non- Newtonian Materials by Rotational Viscometer
G.ASTM D 3278: Flash Point of Liquids by Small Scale Closed -Cup Apparatus
H.ASTM D 4285: Indicating Oil or Water in Compressed Air
1.4 Definitions
A.Installer – The entity preparing the surface, installing , and finishing the HMWM resin treatment .
B.Provider – The manufacturer furnishing the HMWM resin treatment . Bridge Deck Methacrylate Resin Treatment
1.5 Submittals
A.HMWM Resin Treatment
1.Manufacturer’s product data sheets for review.
a.Include recommended installation instructions for information.
2.Manufacturer’s Safety Data Sheets for the components of the HMWM resin treatment for information.
3.Installer’s certification with the Provider’s written concurrence that the HMWM is fully compatible with all deck repair materials .
4.Provider ’s certification stating that the components are fully compatible with one another .
B.Surface Friction al Properties according to AASHTO T 278 for review .
1.6 Quality Control
A.Technical Support Representative
1.Provide a Technical Support Representative from the Provider onsite during surface preparation and application of the HMWM resin treatment on the first day the HMWM resin treatment is used on a structure.
a.The Technical Support Representative must have a minimum of 2 years of experience with the system and with guiding and assisting installers in the HMWM installation.
b.The Technical Support Representative will instruct the workers in proper mixing, application technique, safety precautions, traffic opening time, and environmental requirements.
c.The Technical Support Representative must be available for consultation but not necessarily present at the job site for the remaining work.
2.The Engineer may waive the requirement for the Technical Support Representative to be onsite if the Installer can demonstrate that the Installer’s superintendent for the work has performed at least five satisfactory applications of the HMWM resin treatment on similar bridges in similar environments.
a.The Technical Support Representative must be available for consultation throughout the duration of the application.
b.The Department reserves the right to require the Technical Support Representative to be onsite if at any time the Engineer is concerned with the product installation quality. Bridge Deck Methacrylate Resin Treatment
1.7 Handling, Storage, and Delivery
A.Ship and store the materials away from one another in a manner that prevents leakage and spillage from one container to contact other containers.
B.Store materials in original containers according to the Provider’s requirements and with manufacturer’s label.
1.Include on label manufacture date, batch number, trade name, brand, and quantity.
C.Store sufficient quantities of HMWM resin treatment materials according to the Provider’s requirements.
Part 2 — Products
2.1 Materials
A.HMWM Resin Treatment
1.Use a treatment consisting of a HMWM resin and silica sand.
B.HMWM Resin
1.Use a low viscosity, non -fuming, 100 percent solid, high molecular weight methacrylate resin meeting the properties listed in Tables 1 and 2. Table 1 Physical Properties Property Requirement Test Method Viscosity 25 cps, maximum ASTM D 2196 Specific Gravity 0.9, minimum at 77⁰F ASTM D 1475 Tensile Elongation 3% minimum ASTM D 638 Flash Point 180⁰F minimum ASTM D 3278 Vapor Pressure 0.1 mm Hg maximum ASTM D 323 Bond Strength 1500 psi minimum ASTM C 882 Table 2 Performance Properties Cure Speed Time Surface Cure Less than 6 hours at 77⁰F Gel Time 25-75 minutes, 3.5 fluid ounce sample at 73⁰F Bridge Deck Methacrylate Resin Treatment
C.Silica Sand
1.Commercial quality dry blast sand containing less that 0.5 percent moisture.
2.Have the following gradation: Table 3 Silica Sand Sieve Size Percent Passing (by weight) No. 8 95-100 No. 20 0-5
2.2 Equipment
A.Sandblaster/Air Compressor
1.Air free of water and oil according to ASTM D 4285.
Part 3 — Execution
3.1 Surface Preparation
A.Remove paint markings, visible grease, oils, and other surface contaminants prior to shot blasting.
1.Follow manufacturer recommendations when using solvents to remove contaminants.
2.Complete deck repairs before shot -blasting.
B.Shot-blast concrete surface.
1.Use sandblasting equipment or mechanical grinders only in areas that cannot be reached with steel shot -blasting.
C.Remove dust or debris just before application of the resin with compressed air.
D.Protect expansion joints, cold joints, grates, drains and other elements .
E.Do not allow traffic on the deck that has been shot -blasted. Bridge Deck Methacrylate Resin Treatment
3.2 Application
A.Limitations
1.Do not apply the HWMM resin treatment when it has rained within 24 hours or is expected to rain within 8 hours of application.
2.Verify the concrete substrate is dry before applying the HMWM resin treatment .
a.Measure moisture content with an electronic concrete moisture meter at three locations on the bridge deck to be covered by the HMWM resin treatment . 1) Take measurements at the beginning, middle, and end of the coverage area.
b.Measure moisture content with a concrete moisture meter at each structural pothole patch location to be covered by the HMWM resin treatment .
c.Do not apply the HMWM resin treatment if one or more measurements exceed 4.0 percent.
3.Do not apply the HMWM resin treatment unless the substrate temperature is expected to remain between 50 degrees and 90 degrees during installation and curing of the HWMM resin treatment .
4.Application over new surfaces
a.Allow newly placed concrete to cure for at least 28 calendar days before beginning installation of HMWM resin treatment .
b.Allow newly placed rapid setting mortar materials to cure for at least eight hours, or as recommended by the rapid setting mortar manufacturer, before beginning installation of HMWM resin treatment .
5.Application to bridges constructed offline and moved into their final location by self -propelled modular transporters (SPMT)
a.Apply the HMWM resin treatment no sooner than 30 calendar days after setting the bridge in its final location.
B.Pre-treat visible cracks by filling the cracks and keeping them full.
1.Pre-fill large cracks (wider than 1/32 inch) with sand before applying resin.
2.Treat crack by ponding resin over the crack for between 5 and 10 minutes allowing gravity to feed material into the crack.
3.Repeat ponding procedure until each crack is sealed. Bridge Deck Methacrylate Resin Treatment
C.Mixing HWM Resin
1.Condition resin material to the proper temperature according to the Provider’s recommendations.
2.Mix the HMWM resin components according to the Provider’s requirements and apply the resin to the deck within five minutes of completing mixing.
D.Evenly distribute the HMWM resin on the clean, dry deck surface at the Provider ’s recommended rate, but not greater than 150 ft 2/gal.
1.Application rates may vary depending on field conditions.
a.Texture and absorption of the surface will determine final coverage rates.
b.The Technical Support Representative will assist the Installer in determining application rates.
2.Apply the HMWM resin to refusal.
3.Redistribute excess material using squeegees or brooms.
4.Allow time for resin to penetrate into substrate/cracks prior to broadcasting sand according to the providers recommended time frame.
E.Broadcast silica sand mechanically over the entire treated area of the bridge deck to obtain a visually uniform coverage of at least 2.0 lb/yd 2.
1.Remove excess sand if required by the Technical Support Representative .
F.Traffic
1.Do not allow vehicles on the HMWM resin treatment while it is curing.
2.Traffic may be allowed after the resin has cured, as determined by the Technical Support Representative.
a.Remove excess and loose aggregate before allowing traffic on the HMWM resin treatment .
G.Final Cleanup
1.Remove excess and loose aggregate by vacuum or sweeper truck two weeks after traffic has been on the HMWM resin treatment.
2.Completely remove aggregate from joints. Bridge Deck Methacrylate Resin Treatment
3.3 Field Quality Control
A.Measure the surface frictional properties in two locations on the deck after the application of the HMWM resin treatment .
1.Use a 3 inch wide slider with a 3.875 inch strike path.
B.Reapply the HMWM resin and the silica sand if the surface frictional properties in any location are less than 47 BPN.
3.4 Protection
A.Prevent sandblasting material and debris from falling into waterways, pedestrian areas, traffic areas, or onto railroad tracks.
Source: Utah Standard Specifications for Road and Bridge Construction, 2026 Edition. Pages 1055–1061 of 1,331.