Unit Weight of Water Formula:
Definition: This calculator determines the unit weight of water based on the unit weight of solids and the specific gravity of soil.
Purpose: It helps geotechnical engineers and soil scientists understand the relationship between soil properties and water content.
The calculator uses the formula:
Where:
Explanation: The unit weight of solids is divided by the specific gravity of soil to obtain the unit weight of water.
Details: Understanding this relationship is crucial for soil mechanics calculations, including porosity, void ratio, and degree of saturation.
Tips: Enter the unit weight of solids in N/m³ and the specific gravity of soil (±5%). All values must be > 0.
Q1: What is typical unit weight of solids?
A: For most soils, unit weight of solids ranges from 25,000 to 27,000 N/m³.
Q2: Why is specific gravity given with ±5%?
A: Specific gravity can vary slightly depending on soil composition and moisture content.
Q3: What's the standard unit weight of water?
A: Pure water at 4°C has a unit weight of about 9,810 N/m³.
Q4: How does temperature affect the calculation?
A: Temperature affects water density, but this calculator assumes standard conditions.
Q5: Can I use this for other liquids?
A: No, this is specific to water in soil systems. Other liquids have different properties.