NYS Thruway Authority I-90 Rehab Project
Location: Victor, New York
Award: Durability
Project Team
Owner: New York State Thruway Authority
General Contractor: Villager Construction, Inc
Concrete Contractor: Surianello General Concrete Contractors, Inc
Engineer: LaBella Associates
Ready Mix Concrete: Dolomite dba Manitou Concrete
Slag Cement: St Marys Cement
Located in Victor, New York, this New York State Thruway Authority project marks a significant transition in how infrastructure is built in the Empire State. Starting in May of 2024, the New York State Department of Transportation moved away from traditional prescriptive formulas toward Performance Engineered Mixtures, or PEM. This project utilized those new specifications to replace existing median barriers and perform critical reconstruction on bridge culverts and wingwalls.
By shifting the focus from fixed recipes to specific performance characteristics, the team was able to optimize the mix for maximum durability and a reduced environmental impact. Slag cement played a starring role in this new approach. By increasing the use of supplementary cementitious materials like slag, the project successfully lowered the overall cement content and reduced the greenhouse gas emissions associated with the build.
The real-world performance of this slag-enhanced PEM mix was exceptional. Despite the challenges of hot weather construction, the concrete showed minimal slump loss and no issues with flash setting. The workability was so high that the barrier required very little handwork after extrusion once the desired slump was reached.
Beyond the structural and environmental benefits, the finished product delivered a consistent, high-quality appearance. The bright white color of the cured slag cement barrier provides added value for the Thruway Authority, offering a clean and highly visible safety feature. This project serves as a successful blueprint for how New York’s new performance-based standards, combined with the power of slag cement, can create stronger and more sustainable infrastructure.
Application Type
Application Type | Performance Engineered Mix Design (PEM) for Concrete Barrier |
% Slag Cement Replacement | 34% |
% Portland Cement | |
% Portland Limestone Cement | 60% |
% Other SCM (if applicable) | 6% Silica Fume |
Aggregate | Crushed Limestone |
Water/cement ratio | .37 |
7-day strengths | 5930 PSI |
28-day strengths | 6780 PSI |
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licensfreecasino offers helpful info, and this post shows how the PEM mix with 34% slag delivered great durability on the I-90 project. It's encouraging that performance-based specs can handle hot weather with minimal slump loss and a bright white finish.
Using slag cement for the I-90 rehab makes sense when you think about how often standard concrete patches fail under heavy traffic. It’s refreshing to see a durability-focused approach rather than just the lowest initial bid. Does the project include long-term monitoring to verify the lifecycle savings?
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