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Estimate Cement and Sand for Plaster work

Purpose

This function helps you estimate the amount of cement and sand required for plaster work, along with the area of the work and the number of skilled and unskilled labor days needed.

Use Cases

• Before starting a plastering project, you can use this function to plan and purchase the right amount of materials.
• Contractors can use this function to estimate labor costs and plan their workforce accordingly.

How to Use

1. Enter the thickness, length, and width of the plaster work.
2. Specify the cement-sand ratio, sand part, and other necessary details.
3. Click on the calculate button to get the estimated values.

Input Values

1. Work Thickness: Thickness of the plaster work (default unit is inch)
2. Work Length: Length of the plaster work (default unit is foot)
3. Work Width: Width of the plaster work (default unit is foot)
4. Work Side: Number of sides of the work
5. Cement-Sand Ratio: Ratio of cement to sand (default is 1.0)
6. Sand Part: Part of sand in the mixture (default is 4.0)
7. Mortar Dry Volume Factor: Factor for dry mortar volume (default is 1.5)
8. Cement Bag Volume: Volume of a cement bag (default is 1.25 ft^3/bag)
9. Skilled Labour: Area covered by skilled labor in a day (default is 75 ft^2/manday)
10. Unskilled Labour: Area covered by unskilled labor in a day (default is 50 ft^2/manday)

Output Values

1. Cement: Amount of cement needed (in bags)
2. Sand: Amount of sand needed (in cubic feet)
3. Plaster Work Area: Area of the plaster work (in square feet)
4. Skilled Labour: Number of skilled labor days required
5. Unskilled Labour: Number of unskilled labor days required

Any other Instruction

• Make sure to double-check the input values before calculating to ensure accurate estimates.
• If you are unsure about any input value, consult with a professional or refer to the project requirements.

Steps of Calculation

1. Calculate the work volume and area based on the input dimensions.
2. Determine the dry mortar volume and the parts of cement and sand in the mixture.
3. Estimate the total volume of cement and sand required.
4. Calculate the number of skilled and unskilled labor days needed.

Technical Parameters

work_thickness, work_length, work_width, work_side, cement_sand_ratio, sand_part, mortar_dry_volume_factor, cement_bag_volume, skilled_labour, unskilled_labour

Return Values

Cement, Sand, Plaster Work Area, Skilled Labour, Unskilled Labour

Example Expressions

You can use the following expressions to directly evaluate in a non-interactive manner using eva():

1. Calculate Cement and Sand for a plaster work with dimensions 0.5 inch thickness, 12 ft length, 10 ft width, and a cement-sand ratio of 1.0:

plaster('0.5 inch', '12 ft', '10 ft', 2, 1.0, 4.0, 1.5, '1.25 ft**3/bag', '75 sft/manday', '50 sft/manday')

1. Estimate Cement and Sand for a larger plaster work with dimensions 1 inch thickness, 20 ft length, 15 ft width, and a sand part of 3.5:

plaster('1 inch', '20 ft', '15 ft', 2, 1.0, 3.5, 1.5, '1.25 ft**3/bag', '75 sft/manday', '50 sft/manday')

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