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Coarse Aggregate Gradation for Concrete

IS 2386 (Part 1) test method · IS 383:2016 grading limits

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1. Sample details

2. Sieve set & trial entry

3. Sieve reading (this trial)

Only sieves relevant to the selected size are shown. Pan is included for the mass-balance check only.
Pick one to reopen it here and re-save in place, instead of only being able to delete it below.
IS Sieve Wt retained (g) Cum. wt retained (g) % retained Cum. % retained % passing IS 383 limit Status
Total 0.0
Fineness modulus —
This trial vs IS 383 —
Weight loss on sieving —

4. Saved gradations — all sizes

Every size you've saved stays visible here, no matter which size is selected above.

5. Blend of single-sized stocks

Tick the nominal sizes you're blending and enter each proportion (%). Uses the saved-average gradation of each single-sized stock above. The IS 383 graded limit shown is for the largest nominal size in the blend.

Nominal sizeProportion (%)Average gradation on file?

Blended gradation curve

Blend Upper limit Lower limit Mid limit

6. Report

This app saves everything (gradations, blends) for the active project in your browser, tied to this folder. Logos and project details are entered once on the main Projects page and shared by every module. If you move the files to a new folder, saved data won't carry over automatically — export a backup first, then import it after moving.

Reference — IS 383:2016, Table 7

Kept here for quick reference while testing. Always verify against your current copy of the standard.

IS 383:2016 Table 7 — grading limits for single-sized and graded coarse aggregate