Relative Compaction given Void Ratio Calculator

Relative Compaction Formula:

\[ Rc = \frac{1 + emin}{1 + e} \]

Relative Compaction (Rc):

1. What is Relative Compaction given Void Ratio?

Definition: This calculator determines the relative compaction of soil based on its minimum void ratio and current void ratio.

Purpose: It helps geotechnical engineers and construction professionals assess soil compaction quality.

2. How Does the Calculator Work?

The calculator uses the formula:

\[ Rc = \frac{1 + emin}{1 + e} \]

Where:

\( Rc \) — Relative Compaction (dimensionless)
\( emin \) — Minimum Void Ratio (%)
\( e \) — Current Void Ratio (%)

Explanation: The formula compares the soil's current state (1+e) to its densest possible state (1+emin).

3. Importance of Relative Compaction

Details: Relative compaction indicates how well soil has been compacted compared to its maximum density, affecting bearing capacity and settlement.

4. Using the Calculator

Tips: Enter the minimum void ratio and current void ratio as percentages. Both values must be ≥ 0.

5. Frequently Asked Questions (FAQ)

Q1: What is void ratio in soil mechanics?
A: Void ratio is the ratio of the volume of voids to the volume of solids in a soil mass.

Q2: What does a relative compaction of 1.0 mean?
A: A value of 1.0 means the soil is at its maximum density (emin = e).

Q3: What's a typical target for relative compaction?
A: Most specifications require 90-95% relative compaction for engineered fills.

Q4: How is minimum void ratio determined?
A: Through laboratory tests like Standard Proctor or Modified Proctor tests.

Q5: Can relative compaction exceed 1.0?
A: No, values above 1.0 suggest measurement errors or inappropriate emin value.