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Standard/Modified Proctor Soil Compaction Optimum Moisture (OMC) & Zero Air Voids Calculator

Easily calculate and compute standard/modified proctor soil compaction optimum moisture (omc) & zero air voids calculator with accurate equations, live formulas, and expert guidance.

Specific gravity of mineral solids (typically 2.65 - 2.75).

Water content percentage by dry weight.

Total moist unit weight measured in Proctor mold.

Target relative compaction percentage (e.g. 95% standard Proctor).

Calculated Result
17.9 kN/m³

Dry Unit Weight (γ_d)

Dry Unit Weight (γ_d)

17.9 kN/m³

Compacted Dry Unit Weight Kn M3

17.9

Zero Air Voids Unit Weight Kn M3

18.93

Degree Of Saturation Percent

83

Air Voids Content Percent

5.4

17.9 — kN/m³

Calculation Breakdown

  1. Applied FormulaEvaluates soil compaction efficiency, calculating dry unit weight (γ_d), theoretical zero-air-voids saturation density (γ_ZAV), and compacted void ratios for earth dam and roadway subgrades.\gamma_d = \frac{\gamma_{wet}}{1 + w}, \quad e = \frac{G_s \gamma_w}{\gamma_d} - 1, \quad V_a = 1 - \frac{\gamma_d}{G_s \gamma_w} - \frac{w \gamma_d}{\gamma_w}

Proctor Compaction OMC & ZAV Metric Output

Interactive visualization based on your current inputs

Calculated Value
0.04.58.91318Dry Unit Weight (γ_d)

What Is the Standard/Modified Proctor Soil Compaction Optimum Moisture (OMC) & Zero Air Voids Calculator?

This tool computes standard/modified proctor soil compaction optimum moisture (omc) & zero air voids calculator with high precision arithmetic.

How Does the Standard/Modified Proctor Soil Compaction Optimum Moisture (OMC) & Zero Air Voids Calculator Work?

Evaluates soil compaction efficiency, calculating dry unit weight (γ_d), theoretical zero-air-voids saturation density (γ_ZAV), and compacted void ratios for earth dam and roadway subgrades.

Standard/Modified Proctor Soil Compaction Optimum Moisture (OMC) & Zero Air Voids Calculator Formula & Variables

The core mathematical equation utilized by this calculator is expressed as:

γd=γwet1+w,e=Gsγwγd−1,Va=1−γdGsγw−wγdγw\gamma_d = \frac{\gamma_{wet}}{1 + w}, \quad e = \frac{G_s \gamma_w}{\gamma_d} - 1, \quad V_a = 1 - \frac{\gamma_d}{G_s \gamma_w} - \frac{w \gamma_d}{\gamma_w}

Evaluates soil compaction efficiency, calculating dry unit weight (γ_d), theoretical zero-air-voids saturation density (γ_ZAV), and compacted void ratios for earth dam and roadway subgrades.

How to Use the Standard/Modified Proctor Soil Compaction Optimum Moisture (OMC) & Zero Air Voids Calculator

  1. Enter your parameters into the designated input fields to calculate the result immediately.

Step-by-Step Example Calculation

Standard/Modified Proctor Soil Compaction Optimum Moisture (OMC) & Zero Air Voids Calculator Example

Input Values:

soilSpecificGravityGs:2.68
moistureContentPercent:14.5
wetBulkDensityKnPerM3:20.5
compactionSpecificationTargetPercent:95
Worked Steps: Sample evaluation based on standard reference conditions.

Understanding Your Result

The calculated primary figure indicates the optimal or required kN/m³.

Factors That Affect the Result

  • Measurement tolerances, operational variance, and real-world conditions.

When Should You Use This Calculator?

  • Everyday budgeting, technical homework, professional estimation, and household projects.

Assumptions & Limitations

  • Assumes standard atmospheric or environmental parameters unless specified.

Frequently Asked Questions

Calculation Accuracy & Reference Note

Double-precision IEEE 754 arithmetic with validated empirical constants.

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