Compaction Testing (Nuclear Gauge and Sand Cone, Moisture-Density Relationships)
Field and lab testing to confirm soil compaction and support construction quality control
D.W. Kozera, Inc. provides compaction testing services using nuclear density gauges and/or sand cone and laboratory moisture-density relationships to assess how soils and aggregate fills are placed in relation to project specifications. These tests support construction quality by identifying areas that may require adjustment—helping teams reduce settlement risk, maintain progress, and align with QA/QC expectations.
Testing is performed by trained field technicians and coordinated with project schedules to keep work moving while maintaining documentation for submittals and compliance.
Services Offered
- In-Place Soil Density Testing with Nuclear Gauge and/or Sand Cone
- Field Moisture Content Readings and Comparison to Proctor Curves
- Standard and Modified Proctor Testing for Maximum Dry Density Determination
- Testing of Structural Fill, Backfill, Subgrade, and Subbase Materials
- Lift Thickness and Fill Placement Verification
- Field Reporting and Compaction Summary Sheets for Submittals
- Coordination with Earthwork and Grading Operations
- Support for Owner, Contractor, and Third-Party QA/QC Programs
- Why Work with D.W. Kozera?
- Responsive Field Coordination to Match Construction Pace
Our technicians work closely with grading and paving crews to stay aligned with daily production and help avoid testing-related delays. - Experienced Testing Team with Practical Jobsite Awareness
Field staff are trained in nuclear gauge and compaction procedures and bring hands-on understanding of real-world construction workflows. - Clear, Submission-Ready Documentation
Compaction reports and summary sheets are delivered in a format that supports contractor submittals, QA/QC tracking, and agency review.
Proper compaction protects your project from costly repairs down the road. Contact D.W. Kozera to schedule compaction testing services that keep your work on track and fully documented.


