Cement amending is a proven method for strengthening subgrade and improving long-term pavement performance. At Ground Up, we have the specialized equipment and experienced crews to accurately blend cement into native soils, achieve proper moisture conditioning, and deliver consistent compaction across the entire section. Our team understands mix design, depth control, and curing requirements, ensuring a stable, uniform base that’s built to support heavy traffic loads and extend the life of the roadway.

This is what the site looked like before Ground up’s involvment.

We were brought in to stabilize the subgrade on a private development site, preparing the ground for future construction. Using soil amendment techniques tailored to the site's existing conditions, our team delivered a strong, uniform base while working within the client's timeline and minimizing disruption to surrounding site operations, while beating the import and export cost/time.

Uniform blend of Portland cement and native soil to create structured base.

Customer grades and compacts. Ready for wear surface. Product is 500 - 1000 Pounds per square inch.

We completed a cement amendment project, a soil stabilization process that transforms weak or unstable subgrade into a strong, workable base. The challenges on this job centered around precision and protection — keeping traffic off the cement powder before incorporation, ensuring the correct mix design for the existing soil conditions, and carefully managing moisture application and maintenance throughout the curing process. Our crews executed each step with the attention to detail this type of work demands, delivering a stable, uniform base ready for the next phase of construction.

We are proud to take part in the Climate Pledge Arena project in Seattle, performing cement amendment work to stabilize and strengthen the subgrade capable of supporting the immense loads of the iconic venue. The arena, estimated to weigh in excess of 44,000 tons, demanded a precisely engineered base — our team carefully managed mix design, moisture application, and incorporation to deliver a stable, high-strength foundation that could meet the structural demands of one of the most recognized arenas in the Pacific Northwest.