Expand Cargo Apron – Phase V

Location: Middletown, Pennsylvania

Award: Infrastructure

Project Team

Owner: Susquehanna Area Regional Airport Authority

Contractor and Concrete: Atlantic Contracting & Material Co., Inc.

Engineer: AECOM

Architect: Urban Engineers, Inc. Slag Cement: Heidelberg Materials

This project expanded the existing cargo apron, used by UPS and FedEx, at Harrisburg International Airport in Middletown, PA, USA, adding roughly 23,000 yd2 (2100 m2) of full depth concrete pavement with associated drainage and utilities. The addition will allow more space for the Pennsylvania Air National Guard, which is also stationed at the airport. All concrete was produced on site with a portable batch plant. The pavement mixture design, conformed with the FAA Item P-501 – Portland Cement Concrete Pavements of Standards for Specifying Construction of Airports, included a slag cement content of roughly 300 lb/yd3 (178 kg/m3) of concrete.

Application Type

Application Type
% Slag Cement Replacement	50% 282lbs/cy
% Portland Cement	50%
% Portland Limestone Cement
% Other SCM (if applicable)
Aggregate
Water/cement ratio
7-day strengths
28-day strengths