Black Bear Coatings & Concrete

Owner:

Boston Harley-Davidson

Architect:

studio Troika; Robert Elfer, partner in charge

General Contractor:

J. Calnan & Associates Inc., Quincy, Mass.

Scope Of Work

Link to Magazine Article: http://www.concretedecor.net/decorativeconcretearticles/vol-15-no-2-february-march-2015/high-octane-vibe/

Project at a Glance

Decorative concrete contractor: Black Bear Coatings & Concrete, Fitchburg, Mass.
Client: Boston Harley-Davidson, Revere, Mass.
Architect: studio Troika; Robert Elfer, partner in charge
Project description: Install polished-concrete overlay and epoxy floor system; polish concrete; cast and polish concrete countertops; apply moisture-mitigation sealer system.
General contractor: J. Calnan & Associates Inc., Quincy, Mass.
Project cost: Approximately $250,000
Project duration: Approximately three months (off and on) — five days for epoxy flooring, six days for concrete sealer application, 21 days for polished concrete, four days for polished overlay and seven days for concrete countertops.
Challenges: Evaluation and preparation of existing concrete surface of varied ages and condition, including grinding and polishing with different diamond grits appropriate for range of concrete characteristics; installation of cementitious polishable overlay; evaluation of moisture issues in existing concrete in shop/service and storage areas, with application of moisture-mitigation technologies.
Tools and materials used: Tools – Hippo portable mixers; Terrco 3100-3P and 2000 grinder/polishers and Husqvarna PG820 grinder/polisher; Pulse-Bac 2150 vacuums; Ruvac; Edco Scarifier; Fusion Pucks (dry and wet) from Dynamic Diamond Tooling; ReDiToo demo blades (for heavy concrete removal). Materials – CTS Cement/Rapid Set TRU PC self-leveling cementitious polished-concrete overlay; Vexcon Certi-Shine potassium silicate concrete-polishing system; Buddy Rhodes Counter Mix with glass fiber reinforcement; Dur-A-Flex Shop Floor epoxy flooring system (MVP Primer, Shop Floor epoxy with sand broadcast, Armor Top aliphatic urethane top coat); and Synthetics International Synthetic30 vapor control system.