Compaction / Distribution Report

Inputs

Project / Location

Material / Layer

Proctor Standard Density (kg/m³)

Required Compaction (%)

Field Density Readings (kg/m³) — one per line

Estimation only. All compaction results must be verified by a licensed geotechnical engineer. Terms

Summary

—

average compaction (%)

Readings—

Min compaction—

Max compaction—

Passing readings—

Failing readings—

Pass rate—

Compaction Distribution Report

What is this calculator for?

This tool calculates compaction percentages from field density readings and generates a distribution report for QA/QC documentation. Enter your nuclear density gauge or sand cone readings, and get a formatted summary showing pass/fail against your specified requirement — ready to include in your inspection records.

How to use it

Enter the Proctor MDD from your lab test report for the material being tested
Set your required compaction percentage — typically 95–100% depending on spec
Enter each field density reading on a new line in kg/m³
Click Generate Report to get a formatted distribution summary you can copy

Typical compaction requirements

Subgrade: 95–98% Std Proctor

Granular base: 98–100%

Granular subbase: 95–98%

Structural fill: 95–98%

Asphalt base: 96–98% Gmm

Asphalt wearing: 92–96% Gmm