b'CARGODTW13subgrade, 8-inch aggregate base course, 5-inch asphalt layercrisp edges and minimal edge slump. Its responsiveness allowed and 21-inch concrete surfacean intricate buildup that requiredfor proper consolidation with lower vibration, reducing surface precision and sequencing. wear while achieving a smooth, consistent finish. During Ajax used a combination of dump trucks and agitators toproduction, over 600 individual aggregate gradations were supply concrete to GOMACO GP4 slip-form pavers, which placedperformed, 2,860 flexural strength quality control specimens 21-inch-thick Portland Cement Concrete Pavement in sections upwere broken and over 3,000 individual quality control slump, air to 40 feet wide. A dedicated Erie Strayer dual-drum batch plantcontent, unit weight and concrete temperature tests were taken, was established onsite in 2024 to produce the FAA-complianthe summarizes.P-501 mix. Onsite Management and LogisticsGOMACO Rubber-Tracked Placers provided efficient concreteConstruction of the new FedEx cargo facility occurred November distribution, even at low slump levels. Mann notes that using a2022 to October 2024 under the watch of construction managerspreader plow, rather than an auger, had several advantages,at risk Christman|Brinker Joint Venture. Key milestones includedincluding faster width changes, lower power consumption andthe installation of fencing by September 2023 to reclassify the project operating costs, and enhanced safety relative to other concretesite as a non-Air Operations Area; drying in the building by Nov. 15spreading options.the same year to enable installation of sorting equipment; and Maintaining concrete mix properties and controlling pavercompleting all airside paving during the 2024 construction season.speed were essential for keeping slab edges within specification.To avoid material delays, Christman and its trade partners Although 21-inch metal forms were kept on standby in case ofprioritized early procurement. They stockpile concrete materials edge slump issues, they were rarely needed. Thomson creditsup to a year in advance, and coordinated with electrical vendors that to the diligence and expertise of Ajax.and utility providers to mitigate long lead timesespecially for Mann explains that the concrete mix included well-gradedspecialized components sourced internationally.aggregate and was optimized to respond to vibration, ensuring Planning & EnvironmentalLandside & Airside EngineeringDetroit Metropolitan Wayne & Construction Phase ServicesCounty Airport (DTW)Air Cargo FacilitiesScan to see more of ouraviation services.AirportImprovement.comSeptember 2025'