High-Energy Impact Compaction: Calibration, Correlation and Ground Response

HEIC does not measure modulus or bearing capacity directly. It measures how the ground responds to impact. This article explains how calibration and correlation transform that response into meaningful, site-specific engineering insight.

Why Modulus Matters: Moving Beyond Density in Ground Improvement

Density has long guided compaction, but it does not reflect how ground performs under load. This article explores the shift to modulus-based verification using HEIC, ICM and in-situ testing.