Aggregate Sieve & FM
Sand and crush grading with fineness modulus and an automatic check against ASTM C33 limits, with grading curve and limit envelope.
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About this test
Check whether your sand or crush meets ASTM C33. Enter the masses retained; the sheet gives percent passing, fineness modulus and the grading curve against the specification envelope.
How it's calculated
- FM = Σ cumulative % retained on 0.15–75 mm standard sieves ÷ 100
- Sand for concrete: FM 2.3–3.1 (ASTM C33)
Results are calculated from the values you enter using standard formulas. Download the PDF to keep a record. For certified testing, design or construction, talk to our engineers.
Kataria Engineering & Consultancy Services (2026). Aggregate Sieve & FM [online calculator]. https://katariaengineering.com/tools/aggregate-sieve-analysis-fineness-modulus.html
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