Queens, NY
Award: High Performance
Project Team:
Owner: New York State Department of Transportation
Contractor: Halmar International
Architect: Design-Build Halmar International
Engineer: Halmar International
Concrete: Halmar/Best Concrete Mix Corp.
Slag Cement: Lehigh Hanson
Halmar International used slag cement for durability on this design build three highway (Grand Central Parkway, Jackie Robinson Parkway, and VanWyck Expressway) interchange. Slag cement was used for mass concrete and increased the roadway durability. The interchange is a high volume roadway connecting John F. Kennedy International Airport (JFK), LaGuardia Airport (LGH), and Long Island.
% Slag Cement Replacement | 40 to 70% on mass concrete |
% Portland Cement | 60 to 30% |
% Other SCM (if applicable) | |
Aggregate | Til600 NY |
Water/cementitious ratio | 0.38 to 0.45 |
7-day strengths | 4000 psi (28 MPa) |
28-day strengths | 7000 psi (48 MPa) |