(Originally aired 8/21/25 on Zoom)
In the high-stakes world of construction, moisture-density tests are the backbone of quality control—but what if the results you trust are flat-out wrong? A surprising number of compaction tests that fail shouldn’t, and even more alarmingly, some that pass are hiding critical flaws. The truth lies not just in the numbers but in the flawed processes behind them, and industry veteran Glen Toepfer is pulling back the curtain in an explosive new webinar.
Picture this: your project hits a snag when a compaction test fails. The compactor was on point, overlaps were perfect, and the checklist was followed to a T. Yet, the test says “fail.” Retests fail again, tempers flare, and costs skyrocket. Sound familiar? You’re not alone. Glen Toepfer has seen projects grind to a halt, good contractors nearly kicked off jobs, and budgets blown over test results that were never accurate to begin with.
The culprit? It’s not always bad material or shoddy workmanship. From faulty nuclear gauges to unnoticed material changes, hidden variables are wreaking havoc on compaction testing. “I’ve watched projects waste time and money reworking lifts when the real issue was the gauge itself,” Glen Toepfer reveals. “And I’ve seen CQA technicians miss critical shifts in material that throw results into chaos.”
Compaction testing is often treated like a simple checkbox: hand a technician a gauge and a proctor sheet, and send them to work. But reliable results demand more than that. In this must-attend webinar, Glen Toepfer will break down the entire compaction testing process—from soil sampling to final results—whether you’re using a nuclear gauge, drive cylinder, or sand cone. You’ll uncover the sneaky factors that skew accuracy, learn how to interpret results with ironclad confidence, and discover practical steps to avoid costly errors.

