Density of Plaster in kg/m³

Density Formula:

\[ \rho = \frac{m}{V} \]

Density (kg/m³):

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1. What is Plaster Density?

Definition: Density of plaster is the mass per unit volume, typically measured in kilograms per cubic meter (kg/m³).

Purpose: Understanding plaster density helps in material estimation, structural calculations, and quality control in construction projects.

2. How Does the Calculator Work?

The calculator uses the formula:

\[ \rho = \frac{m}{V} \]

Where:

\( \rho \) — Density (kg/m³)
\( m \) — Mass (kg)
\( V \) — Volume (m³)

Explanation: The mass of plaster is divided by its volume to determine its density.

3. Importance of Plaster Density

Details: Plaster density affects workability, strength, and drying characteristics. Typical values range between 1200-1600 kg/m³ depending on mix composition.

4. Using the Calculator

Tips: Enter the mass of plaster in kilograms and volume in cubic meters. Both values must be > 0.

5. Frequently Asked Questions (FAQ)

Q1: What's a typical density for gypsum plaster?
A: Gypsum plaster typically has a density of about 1200-1400 kg/m³.

Q2: How does lime affect plaster density?
A: Lime plasters are generally less dense (1000-1300 kg/m³) than cement-based plasters.

Q3: Why does density matter in plastering?
A: Density affects weight on substrates, thermal properties, and acoustic performance.

Q4: How can I measure plaster volume accurately?
A: Use water displacement method for irregular shapes or calculate from dimensions for regular shapes.

Q5: Does wet plaster have different density than dry?
A: Yes, wet plaster has higher density due to water content, which evaporates during drying.