Specific Gravity of Cement in lb/ft³

Density Formula:

\[ \rho = SG \times 62.4 \]

Density (lb/ft³):

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1. What is Specific Gravity to Density Conversion?

Definition: This calculator converts the specific gravity of cement to density in pounds per cubic foot (lb/ft³).

Purpose: It helps construction professionals and engineers determine the density of cement based on its specific gravity.

2. How Does the Calculator Work?

The calculator uses the formula:

\[ \rho = SG \times 62.4 \]

Where:

\( \rho \) — Density (lb/ft³)
\( SG \) — Specific Gravity (unitless)
62.4 — Density of water (lb/ft³)

Explanation: Specific gravity is multiplied by the density of water to obtain the material's density.

3. Importance of Cement Density Calculation

Details: Knowing cement density is crucial for mix design, structural calculations, and material quantity estimations.

4. Using the Calculator

Tips: Enter the specific gravity of cement (default 3.15 for Portland cement). The value must be > 0.

5. Frequently Asked Questions (FAQ)

Q1: What is the specific gravity of Portland cement?
A: Typically about 3.15, but can range from 3.10 to 3.25 depending on composition.

Q2: Why is water density (62.4 lb/ft³) used?
A: Specific gravity is defined as the ratio of material density to water density at standard conditions.

Q3: How does temperature affect this calculation?
A: The 62.4 lb/ft³ value assumes water at 60°F. For precise work at other temperatures, adjust the water density value.

Q4: What's the typical density of Portland cement?
A: About 196 lb/ft³ (3.15 × 62.4), but this can vary slightly between cement types.

Q5: Can this be used for other materials?
A: Yes, this formula works for any material when you know its specific gravity.