Sieve Analysis Testing Lab | Jancy Labs
Your subgrade soil needs to be classified before a single layer of pavement goes down. Jancy Labs provides sieve analysis testing as per IS 2720 — fast, accurate, and NABL certified under TC-12176. Furthermore, our gradation reports are accepted by NHAI, PWD, and PMGSY without re-testing delays.
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What is Sieve Analysis?
Sieve analysis tells you the particle size distribution of a soil sample — the essential data that determines whether your material qualifies as sub-base, fill, or embankment. Therefore, this test is conducted on every soil-bearing layer before road construction, foundation work, or earthwork quality approval. Consequently, skipping it — or using an unaccredited report — can trigger rejection at quality audits and delay project handover.
Applicable Standards
IS 2720 (Part 4) specifies sample preparation, sieve sizes, shaking duration, and reporting format for Indian construction projects. Additionally, Jancy Labs conducts this test strictly as per IS 2720 — no deviation, no shortcuts.
Why Sieve Analysis matters for your project
- Road sub-base approval: NHAI and PWD mandate sieve analysis before certifying granular sub-base (GSB) and WBM layers.
- Embankment fill classification: PMGSY and MoRT&H require gradation data to confirm embankment soil meets specification.
- Pavement layer compatibility: Gradation curves determine whether layers bond correctly — therefore preventing rutting and premature failure.
- Foundation suitability: CPWD and TNPWD projects require particle size data to classify soil bearing capacity zones.
- Railway earthwork compliance: Southern Railway and RVNL projects need graded soil certification before ballast placement begins.
- Borrow area qualification: NABARD-funded rural infrastructure projects require sieve analysis reports before earthwork contractors mobilise.
- Proceeding without a valid sieve analysis report risks rejection of your soil layers during third-party quality audits — resulting in costly rework and schedule delays.
Why choose Jancy Labs for Sieve Analysis
Your sieve analysis results are only as reliable as the sieves, the shaker, and the lab behind them.
- Calibrated IS standard sieves and mechanical sieve shaker — verified for accuracy before every test batch
- Sieve analysis conducted strictly as per IS 2720 (Part 4) — no abridged procedures
- Sieve analysis reports signed by a qualified Materials Engineer
- NABL accredited testing laboratory — TC-12176 | ISO 17025:2017
- Reports accepted by NHAI, PWD, and PMGSY without re-testing requirements
- Trusted for sieve analysis by highway and rural infrastructure project engineers across Tamil Nadu
Moreover, our accreditation ensures every result is traceable, reproducible, and audit-ready.
How to get your Sieve Analysis done
1st step : Send 5kg Samples with covering letter
3rd step : Get your certified Report (by Courier or collect Directly)
Our Sieve Analysis Process
- Sample received, logged, and assigned a unique sample ID
- Sample air-dried or oven-dried to constant mass per IS 2720 requirements
- Soil broken down and clods disaggregated without crushing particles
- Sample weighed and loaded onto nested IS standard sieves in descending order
- Mechanical shaker activated for the duration specified in IS 2720 (Part 4)
- Mass retained on each sieve weighed and recorded
- Percentage retained and cumulative percentage passing calculated for each sieve
- Grain size distribution curve plotted and soil classified accordingly
- Results checked against project specification limits where provided
- Report reviewed, signed, and stamped by a Materials Engineer before dispatch
Every sieve analysis result is reviewed and signed by a Materials Engineer before dispatch.
Frequently Asked Questions
1. How long does a sieve analysis test take at Jancy Labs?
Jancy Labs completes sieve analysis testing within the turnaround period defined by IS 2720, accounting for sample preparation and drying time. However, actual dispatch timelines also depend on the current test queue. Call us on +91-8680049004 for a real-time estimate before sending your sample.
2. Can I send soil samples by courier to Jancy Labs?
Yes — courier dispatch is the most common method used by project engineers across Tamil Nadu. Pack your sample in double-sealed airtight bags, label it clearly with your project name and sample ID, and ship to No.6, Ganesh Nagar 3rd Street, K.Pudur, Madurai — 625007. Additionally, WhatsApp us at +91-8680049004 before dispatch so we can track your sample on arrival.
3. Is your sieve analysis report accepted by NHAI and PWD?
Yes. Because Jancy Labs holds NABL accreditation TC-12176 under ISO 17025:2017, our sieve analysis reports are accepted by NHAI, PWD, PMGSY, and other central and state government departments. Our reports are signed by a Authorized Signatory.
4. Do you conduct both dry and wet sieve analysis at Jancy Labs?
Jancy Labs conducts sieve analysis as per IS 2720 (Part 4), which covers both dry sieving for coarse-grained soils and wet sieving for soils with a significant proportion of fines. Furthermore, our team determines the appropriate method based on your sample characteristics. Share your project details with us and we will confirm the procedure before testing begins.
5. How much soil sample do I need to send for a sieve analysis test?
The required quantity depends on the maximum particle size in your sample — as specified in IS 2720 (Part 4), this typically ranges from 500g for fine-grained samples to several kilograms for coarser materials. Therefore, we recommend WhatsApping a photo or description of your sample to +91-8680049004 so our team can confirm the exact quantity required for your specific soil type.
Get your Sieve Analysis report today
Send your soil sample today and receive a sieve analysis report that your project approvals actually accept. Because every layer matters, delayed testing means delayed project progress — don’t wait until your quality audit flags the gap.
| Contact Method | Details |
|---|---|
| Phone | +91-8680049004 / +91-9994421275 |
| +91-8680049004 | |
| jancylabsmdu@gmail.com | |
| Address | No.6, Ganesh Nagar 3rd Street, K.Pudur, Madurai — 625007 |
| Hours | Monday to Saturday, 10:00 AM – 6:00 PM |
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RELATED SERVICES
If your project requires sieve analysis, these related soil tests are commonly needed alongside it:
- Atterberg Limits Test (Liquid Limit & Plastic Limit) — Required for fine-grained soil classification after sieve analysis identifies fines content.
- Proctor Compaction Test (OMC & MDD) — Determines optimum moisture content for the soil layer being graded — typically conducted together with sieve analysis on embankment and subgrade samples.
- CBR Test (California Bearing Ratio) — Required for pavement design after subgrade soil has been classified through sieve analysis and compaction testing.