The Duke Company is proud to carry SpecChem products including RepCon® 928 FS. RepCon® 928 FS is a Very rapid hardening polymer modified cementitious repair mortar.
RepCon® 928FS is a very rapid setting, polymer modified, fiber reinforced, rapid setting concrete repair mortar with corrosion inhibitor for use on concrete floors, highway pavements, bridge decks and other applications requiring early resumption of traffic or use. RepCon® 928 FS is formulated to meet the requirements of ASTM C928 Packaged, Dry, Rapid Hardening Cementitious Material for Concrete Repair and AASHTO T260. RepCon® 928 FS incorporates the latest in polymer technology offering superior durability, performance and ease of application without liquid activators for horizontal and vertical form &
pour applications.
BENEFITS:
- One component, dry-polymer modified. Just add water
- Fiber-reinforced for added flexural strength
- Air entrained for excellent freeze-thaw durability
- Natural concrete-gray color
- Suitable for horizontal and formed vertical application
- Takes foot traffic in 1 hour after set
The Duke Company can assist you with all your construction needs. We offer expert advice from our highly rated customer service. Furthermore, we offer the best values and fast delivery. For exceptional customer service & the fastest delivery in Upstate New York, call us for a prompt rental quote.
(585) 292-9870 (Rochester NY)
(607) 347-4455 (Ithaca NY)
(585) 335-5970 (Dansville NY)
Application
RepCon® 928FS is a very rapid setting, polymer modified, fiber reinforced, rapid setting concrete repair mortar with corrosion inhibitor for use on concrete floors, highway pavements, bridge decks and other applications requiring early resumption of traffic or use. RepCon® 928 FS is formulated to meet the requirements of ASTM C928 Packaged, Dry, Rapid Hardening Cementitious Material for Concrete Repair and AASHTO T260. RepCon® 928 FS incorporates the latest in polymer technology offering
superior durability, performance and ease of application without liquid activators for horizontal and vertical form & pour applications.
Surface Preparation: The concrete must be sound and free of all foreign material, including oil, grease, dust, laitance or other surface contaminants. For maximum durability, saw cut the perimeter of the repair 1/8” deeper than the depth of the repair, creating a notched, reinforced edge. Mechanically abrade the surface by an engineered approved method in accordance with ICRI 310.2 Guideline to a minimum CSP 5. All concrete surfaces to be repaired must be in a saturated-surface-damp (SSD) condition with no standing water on the surface.
Priming/Scrub Coat: Thoroughly clean all exposed steel reinforcing of rust and coat with SpecPrep SB.
Prepared concrete must be SSD and primed with a spray or brush coat of SpecPrep SB and the repair mortar applied wet on wet or up to the recommended open time (see SpecPrep SB technical data sheet).
As an alternative, apply a scrub coat of the properly mixed repair mortar by scrubbing a thin layer into the predampened substrate with a stiff brush. Place the repair mortar immediately before the bond coat dries.
Mix 4.75 – 5.25 pints (depending on desired consistency) of clean water per 50 pound bag of material.
Mix with a low speed drill or mortar mixer. Add recommended amount of clean water into the container, followed by slowly adding the RepCon® 928 powder. Mix 2-3 minutes. Mix only what can be applied within the setting period. Depending on the area dimensions, Rep Con® 928 FS can be applied in applications from 1” to 6” in a lift without extension.
Deep Applications: For repair applications over 2”, RepCon® 928 FS can be extended with clean, SSD, 3/8” aggregate up to 60% by weight (30lbs) and mixed an additional 2 min. Choose a clean (free of organic material) well-graded 3/8” aggregate. Aggregate should be predampened prior to mixing with RepCon® 928 FS. The total mixing water for the batch shall be reduced by the amount of free water found in the aggregate. This extension will add approx 0.18 cu-ft to the unit yield and should be placed within 15-20 min.
Placement: Trowel, or screed RepCon® 928 FS firmly into the prepared area, ensuring intimate contact with the bonding surface. Finish RepCon® 928 FS level with the surrounding concrete and allow to take an initial set. After the initial set, when RepCon® 928 FS is surface hard, finish by hand trowelling. Excessive troweling is not required.
Finishing/Curing: Finish the repair material to the desired texture to best match the surrounding concrete. Do not add additional water to the surface during finishing. Lightly spray SpecFilm as a finishing aid on this and any other polymer modified mortars to assist in finishing. RepCon® 928 FS is self-curing under most conditions. In severe drying conditions, use an ASTM C-309 compliant, Con® 928 FS can be applied in applications from 1” to 6” in a lift without extension. Deep Applications: For repair applications over 2”, RepCon® 928 FS can be extended with clean, SSD, 3/8” aggregate up to 60% by weight (30lbs) and mixed an additional 2 min. Choose a clean (free of organic material) well-graded 3/8” aggregate. Aggregate should be predampened prior to mixing with RepCon® 928 FS. The total mixing water for the batch shall be reduced by the amount of free water found in the aggregate. This extension will add approx 0.18 cu-ft to the unit yield and should be placed within 15-20 min. Placement: Trowel, or screed RepCon® 928 FS firmly into the prepared area, ensuring intimate contact with the bonding surface. Finish RepCon® 928 FS level with the surrounding concrete and allow to take an initial set. After the initial set, when RepCon® 928 FS is surface hard, finish by hand trowelling. Excessive troweling is not required.
Download Helpful Information:
Packaging
RepCon® 928 FS is packaged in
- 50 lb bag
- 3,000 lb SuperSack
- Coverage: approx 20 sq-ft @ 1/4”
The Duke Company can assist you with your construction needs. We offer expert advice from our highly rated customer service. Furthermore, we offer the best values and fast delivery.
(585) 292-9870 (Rochester NY)
(607) 347-4455 (Ithaca NY)
(585) 335-5970 (Dansville NY)
The Duke Company ships nationwide and throughout New York, or contact us for convenient pick-up locations including:
- Watertown NY
- Oswego NY
- Amsterdam NY
- Plattsburgh NY
- Henrietta NY
- Ellicottville NY
- Horseheads NY
Sign-up for the Duke Company’s Alerts
Text ‘DUKESALT’ to ’55469’ to receive text messages regarding our hours, extended hours, schedule changes and discount opportunities.
Industries we serve:
| Construction
High Rises, |
