Calculators

Concrete Mix Design (ACI 211) | Proportioning Tool

Updated September 5, 2026

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🧱 Concrete Mix Design (ACI 211) proportioning per cubic yard

ACI 211.1 method: estimate w/c ratio, cement content, water demand, and coarse/fine aggregate weights for standard concrete mixes.

🎯 Target strength (psi)

28-day compressive strength

💧 Slump (inches)

🪨 Nominal max aggregate (in)

🏜️ Fine aggregate FM

Fineness modulus (2.4–3.0 typical)

🧪 Air entrainment?

⚙️ Water reducer

🏔️ Cement SG

🪨 Coarse agg. SG (SSD)

🏜️ Fine agg. SG (SSD)

📐 Based on ACI 211.1 tables: w/c ratio from strength, water demand from slump & max agg, coarse aggregate volume from FM & max agg, cement from w/c & water, fine aggregate by absolute volume method.

Compiled by the Reborn Rental team, backed by our field engineers and dispatch staff working Denver-metro concrete washout and equipment rental jobs.

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Concrete Mix Design (ACI 211) | Proportioning Tool

🧱 Concrete Mix Design (ACI 211) proportioning per cubic yard