Sika Ag · SIX:SIKA
Sika — Technical Presentation (October 2019)
24 slides from Sika's technical presentation, October 2019
Slide 1: SikaRepair 222 Application Instructions
Construction SikaRepair 222 Application Instructions Sika Corporation
Slide 2: SikaRepair 222
Construction SikaRepair 222 One-component Early strength gaining Cementitious Patching material for horizontal repair of concrete. Sika Corporation
Slide 3: Where to use
Construction SikaRepair 222 Where to use: • On, above, and below grade on concrete and mortar. • Repair material for spalled horizontal concrete surfaces, walkways, ramps, steps, etc. Sika Corporation
Slide 4: Packaging and coverage
Construction SikaRepair 222 Packaging: • SikaRepair SHB - 50 lb. bag. • SikaLatex R – 1 gal. plastic jug. Coverage: • .42 cu. ft./bag • 726 cu. inches./bag Sika Corporation
Slide 5: Surface Preparation: Cementitious Substrates
Construction Surface Preparation Cementitious Substrates: • Should be clean and sound. • Remove contaminants and bond inhibiting materials from repaired area. • Obtain exposed/fractured aggregate surface ~1/8 to 1/4 inch profile (ICRI CSP 6 & above). • Substrate must be saturated surface dry (SSD)
Slide 6: Surface Preparation
Construction Surface Preparation Cementitious Substrates: • Surface should be cleaned and roughened to create a profile. Sika Corporation
Slide 7: Surface Preparation: Saw Cut
Construction Surface Preparation Saw cut around perimeter of repair area to achieve a minimum 3/8” shoulder. Eliminates feathered edges giving a clean repair transition Sika Corporation
Slide 8: Surface Preparation: Steel
Construction Surface Preparation Steel: • Remove all corrosion and contaminants from exposed steel. • Surface should be cleaned thoroughly by blast cleaning or mechanical means. • Exposed steel should be cleaned to white steel. • If half of the diameter is exposed, chip behind bar, ½” minimum for
Slide 9: Steel Preparation
Construction Steel Preparation Steel should be cleaned to a bright metal finish. Sika Corporation
Slide 10: Tools Required
Construction Tools Required ½” Drill Motor. Low speed drill 400-600 rpm. Large mixing paddle Margin trowel Sika Corporation
Slide 11: Mixing
Construction Mixing Pour Water or Latex R into clean pail. Leave approximately 1” of Water or Latex R in jug. Sika Corporation
Slide 12: Mixing
Construction Mixing Add SikaRepair 222 to pail with Water or Latex R already inside, while mixing continuously. Sika Corporation
Slide 13: Mixing
Construction Mixing 1. Water or Latex R ¾ -1 gallon of liquid. 2. Start with adding liquid to the mixing container. 3. Slowly add powder. 4. Once all the powder is added mix for 3 minutes. 5. Do not add any more than the recommended liquid. Sika Corporation
Slide 14: Mixing
Construction Mixing 1. While mixing for 3 minutes stop to scrape after 1.5 minutes down the sides to insure all material is fully mixed. 2. Add additional Water or Latex R for desired consistency. 3. Most cases you will have liquid left. 4. Thorough mixing and proper proportioning is necessary. Sika
Slide 15: SR - Application
Construction SR 222 - Application Apply the mortar to the patch area while the Armatec 110 EpoCem is still wet. If Armatec is not used as a bonding agent, SSD the surface and scrub coat the repair mortar into the substrate filling all pores and voids. Sika Corporation
Slide 16: SR - Application
Construction SR 222 - Application Apply scrub coat to substrate, filling all pores and voids While scrub coat is wet, apply SikaRepair 222 Press mortar behind rebar and make sure the material is consolidated and compacted fully. Sika Corporation
Slide 17: SR - Application
Construction SR 222 - Application Complete filling patch area. Work mortar from the center of the patch to the outside. Sika Corporation
Slide 18: Min / Max application thickness
Construction Min / Max application thickness Water and diluted Latex R • Neat Min (1/4 inch) Max (1.0 inch) • Extended Min (1.0 inch) Max (4.0 inch) Undiluted Latex R • Neat Min (1/8 inch) Max (1.0 inch) • Extended Min (1.0 inch) Max (4.0 inch) SikaRepair 222 can be extended with aggregate. Si
Slide 19: Finish
Construction SikaRepair 222 - Finish After filling patch section, allow mortar to set to desired stiffness. Then finish with steel, wood, plastic floats, or damp sponge float to attain look required. Sika Corporation
Slide 20: Finish
Construction SikaRepair 222 - Finish To assist in the finishing of the SikaRepair use SikaFilm. • SikaFilm is a finishing aid that also retards moisture evaporation. Sika Corporation
Slide 21: Finish
Construction SikaRepair 222 - Finish You can use a steel trowel to attain a smooth surface. Sika Corporation
Slide 22: Sponge Float Finish
Construction Sponge Float Finish You can use Sponge float to attain a textured surface. Sika Corporation
Slide 23: Curing
Construction SikaRepair Curing Cure as per ACI recommendations. Curing is required. Moist cure with wet burlap and polyethylene, a fine mist of water or water- based curing compound. Moist curing should commence immediately after finishing. Protect newly applied material from direct sun ligh
Slide 24: Sika Product Data Sheets
Construction SikaRepair 222 Sika Product Data Sheets can be obtained via: www.sikaconstruction.com Refer to data sheets for specific information on each Sika product. Sika Corporation