Concrete Mix Design Calculator

This detailed post explain about Concrete Mix Design Calculator. The step by step procedure were considered to enhance the use of this calculator for Site construction. Please follow the steps and use it for Mix design of Concrete.

Concrete Mix Design Calculator by Parag Pal

Based on IS Standard Principles

Input Parameters

Concrete Grade M20 M25 M30 M35 M40

Maximum Aggregate Size (mm) 20 mm 10 mm 40 mm

Exposure Condition Mild Moderate Severe Very Severe Extreme

Target Water-Cement Ratio (Optional - will be validated)

Slump (mm - for water adjustment)

Admixture Water Reduction (%)

Fine Aggregate Specific Gravity

Coarse Aggregate Specific Gravity

Cement Specific Gravity

Calculated Mix Proportions (per m³)

Target Mean Strength (f_cm): -- MPa

Water Content: -- Liters

Cement Content: -- kg

Fine Aggregate: -- kg

Coarse Aggregate: -- kg

Mix Ratio (Cement:Sand:Aggregate): -- : -- : --

Note:

• Calculations are based on simplified IS principles, and assume specific gravities for materials.
• Water reduction due to admixture and adjustments for slump are applied as percentages.
• Actual mix design requires laboratory trials and adherence to relevant IS codes (e.g., IS 10262, IS 456).