Engineering Guidance for Pressure Grouting and Slab Stabilization
US Pressure Grouting Administrations (USPGA) publishes industry guidance and technical position papers to support engineering-led, code-compliant pressure grouting practices across the United States.
Pressure grouting, slab jacking, pavement undersealing, and foundation stabilization are often treated inconsistently across jurisdictions and project types. USPGA guidance exists to clarify how these applications align with International Building Code (IBC) requirements, Department of Transportation (DOT) specifications, and established geotechnical engineering principles through code-aligned pressure grouting practices.
These documents are written for engineers, agencies, contractors, and asset owners who require fact-based references, not marketing claims.
Purpose and Use of USPGA Position Papers
USPGA position papers are developed to address recurring technical questions and risk areas within the pressure grouting and slab stabilization industry. They focus on how pressure grouting systems should be evaluated, documented, tested, and verified when used for load-bearing support, void filling, and structural rehabilitation.
Guidance commonly addresses:
- Pressure grouting vs. slab jacking and undersealing applications
- CLSM and cementitious grout performance expectations
- Testing benchmarks, including compressive strength and flow control
- Engineering oversight, documentation, and compliance responsibilities
These papers are not substitutes for professional engineering judgment. They are intended to support consistent interpretation of standards and reduce ambiguity during design, review, and acceptance through testing benchmarks and performance data.
Neutral, Independent, and Data-Driven
USPGA guidance is developed independently of manufacturers, equipment suppliers, and contractors. The organization does not endorse proprietary pressure grouting equipment, slab-jacking systems, polyurethane lifting methods, or specific materials.
Position papers are informed by:
- IBC Chapter 18 (Soils and Foundations)
- State and federal DOT specifications
- Independent laboratory testing and performance data
- Published research and documented field outcomes
Where differing approaches exist within the industry, USPGA evaluates them based on code recognition, testing results, and engineering principles, not anecdotal performance or sales claims.
Industry guidance is closely aligned with USPGA’s engineering and compliance services, ensuring continuity between published standards and practical application.