1. What is This Calculator For?

This calculator determines the quantities of cement and sand needed for exterior brickwork mortar based on the volume of mortar required and the desired cement-to-sand ratio.

2. How Does the Calculator Work?

The calculator uses these formulas:

Where:

• 1.33 — Standard factor for dry volume to wet volume conversion
• 1440 — Density of cement (kg/m³)
• 1600 — Density of sand (kg/m³)
• ratio — Cement to sand proportion (e.g., 1:4 ratio = 4)

Explanation: The formulas account for the different densities of cement and sand, and the specified mixing ratio.

3. Importance of Accurate Material Calculation

Details: Proper calculation ensures structural integrity of brickwork, prevents material wastage, and helps in accurate cost estimation for construction projects.

4. Using the Calculator

Tips: Enter mortar volume in cubic meters and the cement:sand ratio (for 1:4 ratio, enter 4). All values must be positive numbers.

5. Frequently Asked Questions (FAQ)

Q1: What is a typical cement:sand ratio for exterior brickwork?
A: Common ratios range from 1:3 to 1:6 depending on structural requirements and exposure conditions.

Q2: How do I estimate mortar volume for brickwork?
A: Mortar volume is typically 20-25% of brickwork volume. Calculate brickwork volume (area × thickness) then multiply by 0.2-0.25.

Q3: Why is there a 1.33 multiplication factor?
A: This accounts for the increase in volume when dry materials are mixed with water (bulking of sand).

Q4: Are these calculations suitable for all types of cement?
A: The calculations are based on Ordinary Portland Cement. Different cement types may have slightly different densities.

Q5: How accurate are these calculations?
A: They provide good estimates but actual requirements may vary slightly based on material quality, workmanship, and site conditions.