Mass Concrete Mix Design Calculator 2026 | Thermal Analysis & IS 456 Cl. 13.7 — MixDesignCalc

🔥 IS 10262:2019 · IS 456 Cl. 13.7 · ACI 207.1R · 2026

Mass Concrete Mix Design Calculator

IS 10262:2019 optimised mix design for mass concrete — raft foundations, pile caps, dams and thick walls. Includes thermal analysis, heat of hydration, temperature rise prediction, IS 456 temperature differential compliance, SCM optimisation and cooling strategy.

🔥 Heat of Hydration Analysis ⏱ Temperature Rise Prediction ✅ IS 456 Cl. 13.7 Compliance 🌿 SCM Heat Reduction ❄️ Cooling Strategy Guide

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Mass Concrete Design Parameters

IS 10262:2019 Cl. 4 + IS 456:2000 Cl. 13.7 — Stipulation of requirements for mass concrete elements

● Structural & Exposure Requirements

Concrete Grade

IS 456 Exposure Class

Element Type

Element Thickness (mm)

Governs adiabatic temperature rise fraction

Ambient Temperature (°C)

Peak daytime temperature at pour location

Concrete Placing Temp (°C)

IS 456 Cl. 13.7: max 40°C at placing

Standard Deviation Source

● Cement & SCM Selection

Primary Cement Type

SCM Added Separately (type)

SCM Addition (% of cement mass)

FA: max 35%; GGBS: max 65% for mass concrete

Superplasticiser

Fly Ash (pre-blended in cement) (%, if PPC/PSC)

PPC typically 15–35% FA; PSC typically 25–70% GGBS

7-Day Heat of Hydration (J/g, auto)

PPC: 210–280 J/g — LOW heat

● Aggregate, Workability & Section Geometry

Max Aggregate Size (mm)

Aggregate Type

FA Grading Zone

Target Slump (mm)

Pour Lift Height (mm)

Max lift height per layer for temperature control

Air Content (%)

Cooling Pipes Installed?

Insulation on Surfaces?

● Material Specific Gravities

Cement SG

Coarse Agg SG

Fine Agg SG

CA DRBD (kg/m³)

SCM SG (FA≈2.20, GGBS≈2.90)

Concrete Density (kg/m³)

✅ Mass Concrete Mix Design Complete — IS 10262:2019

Thermal analysis included ·

Cement

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kg/m³

Water

—

L/m³

Fine Agg

—

kg/m³

Coarse Agg

—

kg/m³

SCM

—

kg/m³

w/c Ratio

—

adopted

Core Temp Rise

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°C (predicted)

Δ T Core–Surface

—

°C (IS 456 max 20°C)

1 Target Mean Strength

IS 10262:2019 Cl. 5.3.2 — fcr = fck + 1.65 × S

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fck

—

MPa

—

MPa

Margin

—

MPa

TMS (fcr)

—

MPa

2 Water-Cement Ratio

IS 10262:2019 Cl. 5.6 — lower of strength-derived and IS 456 Table 5

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Strength w/c

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IS 456 Max w/c

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Adopted w/c

—

Governs

—

3 Water Content

IS 10262:2019 Table 2 — base value adjusted for MSA, slump, aggregate type and SP

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Table 2 Base

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L/m³

SP Reduction

—

L/m³

Design Water

—

L/m³

4 Cement & Binder Content

IS 10262:2019 Cl. 5.5 — C = W / w/c; SCM addition and effective w/c calculation

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Cement Content

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kg/m³

SCM Added

—

kg/m³

Total Binder

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kg/m³

Effective w/c

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IS 456 Min

—

kg/m³

IS 456 Max

450

kg/m³

5 Aggregate Proportioning

IS 10262:2019 Table 3 — Absolute volume method; 40/80mm MSA for mass concrete

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jc Applied

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Coarse Agg

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kg/m³

Fine Agg

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kg/m³

Volume Balance

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m³

Unit Weight

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kg/m³

6 Mix Proportions Summary

Per m³ of concrete — SSD basis

Material	Quantity	Volume (m³/m³)	Ratio to Cement	Standard

7 Thermal Analysis — Heat of Hydration

IS 456:2000 Cl. 13.7 — Max placing temp 40°C · Max core–surface differential 20°C · ACI 207.1R method

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Temperature Profile

Placing Temp T₀

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°C

Adiabatic Rise ΔT

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°C (fully insulated)

Actual Rise (α×ΔT)

—

°C (α=thickness factor)

Predicted Core Temp

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°C

Surface Temp

—

°C (ambient + insulation)

ΔT Core − Surface

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°C

Placing Temp Check

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IS 456 max 40°C

ΔT Differential Check

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IS 456 max 20°C

8 Cement / SCM Heat Comparison

Predicted temperature differential for different binder systems at this mix design — select the lowest-heat option that satisfies ΔT ≤ 20°C

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9 Cooling Strategy & Thermal Control Measures

Recommended measures to achieve IS 456 Cl. 13.7 compliance for this pour

Measure	ΔT Reduction (°C)	Applicability	Cost Indicative	Status

10 Trial Mix & Compliance Checklist

IS 10262:2019 Cl. 9 — Trial batch 30 L minimum · IS 456:2000 compliance summary

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✅ IS 456:2000 Compliance Checklist — Mass Concrete

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Mass Concrete Design Reference

IS 456:2000, IS 10262:2019 and ACI 207.1R requirements for mass concrete

        📌 IS 456:2000 Cl. 13.7 — Temperature Limits for Mass Concrete
        Maximum placing temperature: 40°C at time of placing (IS 456 Cl. 13.7). Monitor with thermometer on each truck/batch.
Maximum temperature differential: 20°C between core and surface during curing (IS 456 Cl. 13.7). Measured by embedded thermocouples.
Mass concrete threshold: Elements where heat dissipation must be controlled — generally thickness > 500mm (IS 456 guidance) or where ΔT prediction exceeds 20°C with standard OPC 53.
Cement choice: PPC (IS 1489), PSC (IS 455), or Low Heat OPC (IS 12600) strongly recommended for thickness > 500mm. OPC 53 alone is generally not suitable for > 800mm thickness without aggressive cooling.
Lift height: Pour in lifts of 300–600mm maximum with adequate vibration overlap. Allow each lift to partially cool before placing next.
Curing: Keep surfaces covered and moist. Insulate with hessian + polythene to slow surface cooling and reduce differential. Do NOT strip formwork early in mass pours.

    

⚠️ Thermal Monitoring is Mandatory for Elements > 800mm Thick: IS 456 requires that temperature be monitored during curing. Embed calibrated thermocouples at element core and surface. Record temperature every 2 hours for the first 72 hours. If ΔT approaches 18°C, increase insulation immediately or activate cooling pipes. Core temperature typically peaks at 18–36 hours after placing.

Mass Concrete Mix Design Calculator

🔥Mass Concrete Design Parameters

● Structural & Exposure Requirements

● Cement & SCM Selection

● Aggregate, Workability & Section Geometry

● Material Specific Gravities

✅ Mass Concrete Mix Design Complete — IS 10262:2019

1 Target Mean Strength

2 Water-Cement Ratio

3 Water Content

4 Cement & Binder Content

5 Aggregate Proportioning

6 Mix Proportions Summary

7 Thermal Analysis — Heat of Hydration

Temperature Profile

8 Cement / SCM Heat Comparison

9 Cooling Strategy & Thermal Control Measures

10 Trial Mix & Compliance Checklist

✅ IS 456:2000 Compliance Checklist — Mass Concrete

📄Mass Concrete Design Reference

📌 IS 456:2000 Cl. 13.7 — Temperature Limits for Mass Concrete

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Mass Concrete Design Parameters

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Mass Concrete Design Reference