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India

IS:10262 / IRC:58 / MORTH

Auto-set from project location above — applies grades, W/C limits & QC checks

Active Standards

Exposure Limits

Grade Guidance by Structural Application

Application type

Traffic / loading category

Design life (years)

Climate zone

Exposure condition

Concrete placement method

Airport / Highway Specific Requirements

Airport pavement category

Pavement classification number (PCN) target

Subgrade CBR (%)

Highway / Road classification

Road category

Slab thickness target (mm)

Ultra-thin Whitetopping (UTW) parameters

Overlay thickness target (mm)

Panel size / joint spacing

Short joint spacing (≈12–24× thickness) is what lets a bonded thin slab carry load without dowels — fibres and aggregate interlock do the load transfer instead.

Requires a milled/roughened, clean asphalt surface for bond — unbonded UTW behaves as an independent slab and will fail early. See IRC:SP:76 / ACI 325.13R / ACPA UTW guidelines.

Strength, Materials & Aggregates IS:10262

Strength & Workability

Characteristic compressive strength — f_ck / f'_c

Min grade for application will be enforced

Standard deviation (σ / S) — MPa [IS:10262 Table 1]

4.0

Controlled site: 4.0 MPa · Without records: 5.0 MPa · ACI: use COV 10–15%

Acceptance criteria standard

Workability — slump / flow

Max temperature of fresh concrete (°C)

30

IS:7861 ≤38°C · EN 13670 ≤30°C · ACI 305 ≤35°C

Minimum concrete cover (mm)

Flexural strength target (MR) — MPa

4.5

IRC:58 ≥ 4.5 MPa · FAA ≥ 4.1 MPa (600 psi) · ICAO recommendation

Cement & Water

Cement type

Specific gravity of cement

3.15

Max free water-cement (W/C) ratio

0.40

Exposure class maximum will be applied if stricter

Mixing water content — W (kg/m³)

168

Highway/airport: 155–175 kg/m³ for slip-form. Pump: 180–195 kg/m³

Water quality

Entrapped / entrained air (%)

2.0%

Paving concrete: 1.5–3%. Freeze-thaw: 4–7% entrained air (ACI 318 T26.4.3)

Curing method

Aggregates

Coarse aggregate

Nominal max size (mm)

CA type / source

LA Abrasion loss (%)

CA specific gravity

2.70

Volume fraction of CA

0.60

Auto-derived from region & nominal max aggregate size — override if your grading differs

CA water absorption (%)

0.5%

CA surface moisture (%)

0.0%

Dual-source coarse aggregate — blend two fractions by weight (e.g. 20mm + 10mm graded stone)

Fine aggregate

Fine aggregate source

Sand grading zone / ASTM

FA specific gravity

2.65

FA water absorption (%)

1.0%

FA surface moisture (%)

1.0%

M-sand / Manufactured sand: Typically 5–15 kg/m³ higher water demand. Verify MB value ≤ 2, clay/silt ≤ 2%, FM 2.6–3.0. For airports: confirm polishing resistance and angularity requirements of applicable AC/advisory.

Dual-source fine aggregate — blend two sources by weight (e.g. river sand + crushed sand)

Supplementary Cementitious Materials & Admixtures

Supplementary cementitious materials (SCMs)

Fly ash (FA / PFA)

IS:3812 · ASTM C618 Class C/F · EN 450

Replacement (%)

20%

Specific gravity

2.20

IS max 35% · ASTM ACI 318 max 40% · EN 450 max 55% · Airport: verify F/T durability

GGBS (GGBFS)

IS:16714 · ASTM C989 · BS EN 15167

Replacement (%)

30%

Specific gravity

2.85

Ideal for marine/coastal. High vol (≥50%) for sulphate resistance

Silica fume (SF/CSF)

IS:15388 · ASTM C1240 · EN 13263

Replacement (%)

7%

Specific gravity

2.20

M50+ / HPC / airport overlay. Mandatory extra SP. Low W/B required

Metakaolin (MK)

IS:16354 · ASTM C618 Class N · EN 450

Replacement (%)

10%

Specific gravity

2.50

Good for AAR suppression and early strength. Bridge decks, tunnel linings

Chemical admixtures

Superplasticizer / HRWR — IS:9103 / ASTM C494 Type G/F / EN 934

SP dosage (% by binder wt)

0.8%

Water reduction achieved (%)

25%

Retarder / plasticizer — IS:9103 Type B/D · ASTM C494 Type B · hot weather

Air entraining agent (AEA) — freeze-thaw zones · ASTM C260 · EN 934-4

Waterproofing / crystalline admixture — IS:2645 / ASTM C494

Corrosion inhibitor — coastal / de-icing salt environment

Fibres — fatigue/crack control (roads, airports, industrial)

Joint sealant / dowel bars — airport transverse joints

Shrinkage-reducing admixture (SRA) — curling control

Mix Design Results IS:10262

Target mean strength (f_t)

—MPa

Free W/C (W/B) ratio

—

Total binder content

—kg/m³

Free water

—kg/m³

	Constituent	Standard / Reference	Sp. gravity	Qty (kg/m³)	Volume (L/m³)
Total — volume check				—	— L

Volume proportion of constituents (per m³)

Mix proportions by weight (cement = 1.00)

Trial batch — 50 L

Quality Control IS:10262

All checks

Highway

Airport

Ultrathin

Compliance checks

Mandatory field & lab tests

Design recommendations

Concrete Acceptance Criteria — hardened strength compliance

Mix summary

Lab Sample Verification — confirm design against actual test results

Sample / Cube ID

Test age

Measured strength (MPa)

Measured slump (mm) — optional

Individual-result check shown here is indicative only (measured ≥ target f_ck). Formal batch acceptance must follow the statistical criteria of the governing standard (e.g. IS:456 Cl 16, ACI 318, EN 206, BS 8500).

Sample ID	Age	Measured (MPa)	Target f_ck (MPa)	Slump (mm)	Result
No lab results added yet

WorldPaveAI Concrete Mix Design

Active Standards

Exposure Limits

Grade Guidance by Structural Application