Jancy Labs — Trusted Soil Testing Lab
NABL Accredited under ISO/IEC 17025:2017 · Certificate No. TC-12176
Every road project, building foundation, and embankment in Tamil Nadu depends on reliable soil data. A single unverified test can delay your project or fail a department audit, so as an accredited soil testing lab we make every result count.
What Is Soil Testing?
Soil testing is the systematic laboratory evaluation of soil properties — including strength, compressibility, and gradation — that determine how a material will perform under structural load. Tests are conducted under Indian Standard IS 2720 (various parts), which governs everything from moisture measurement to bearing capacity testing.
As a full-service soil analysis laboratory, we handle everything from a single lab test for soil to a complete subgrade investigation, with every result traceable to IS 2720. Submitting reports from an unaccredited soil testing laboratory increases the risk of departmental rejection, re-testing costs, and project delays — particularly on NHAI, PWD, and PMGSY contracts that require ISO/IEC 17025:2017 compliant documentation.
Full Test List
Each test is conducted with precision, reinforcing our reputation as a reliable testing lab and a dependable soil analysis lab for projects across Tamil Nadu.
Bearing Capacity & Strength
| Test Name | Standard | What It Determines |
|---|---|---|
| California Bearing Ratio (CBR) — Soil | IS 2720 Part 16 | Bearing strength of subgrade soil for pavement design |
| California Bearing Ratio (CBR) — Granular Subbase | IS 2720 Part 16 | Bearing capacity of GSB layer for road construction |
Plasticity & Consistency Limits
| Test Name | Standard | What It Determines |
|---|---|---|
| Free Swell Index | IS 2720 Part 40 | Expansive potential of clay soils; critical for foundation design |
| Liquid Limit — Casagrande Method | IS 2720 Part 5 | Water content at which soil transitions from plastic to liquid state |
| Liquid Limit — Cone Penetrometer Method | IS 2720 Part 5 | Liquid limit by cone penetration (alternate method) |
| Liquid Limit — Granular Subbase | IS 2720 Part 5 | Plasticity assessment of GSB material |
| Liquid Limit — Wet Mix Macadam | IS 2720 Part 5 | Plasticity check for WMM layer compliance |
| Plastic Limit | IS 2720 Part 5 | Lower plasticity boundary; used with LL to compute Plasticity Index |
Classification & Physical Properties
| Test Name | Standard | What It Determines |
|---|---|---|
| Sieve Analysis — Dry Sieving | IS 2720 Part 4 | Particle size distribution of coarse-grained soils |
| Sieve Analysis — Passing 4.75mm Sieve | IS 2720 Part 4 | Gradation of fine-grained fraction of soil |
| Specific Gravity | IS 2720 Part 3 Sec 1 | Density of soil solid particles; input for void ratio and saturation |
| Water Content | IS 2720 Part 2 | Moisture present in soil sample at time of testing |
Compaction Characteristics
| Test Name | Standard | What It Determines |
|---|---|---|
| Heavy Compaction — MDD (Soil) | IS 2720 Part 8 | Maximum dry density of soil under modified Proctor energy |
| Heavy Compaction — OMC (Soil) | IS 2720 Part 8 | Optimum moisture content for achieving MDD |
| Heavy Compaction — MDD (Granular Subbase) | IS 2720 Part 8 | Maximum dry density of GSB for compaction control |
| Heavy Compaction — OMC (Granular Subbase) | IS 2720 Part 8 | Optimum moisture content for GSB layer compaction |
| Heavy Compaction — MDD (Wet Mix Macadam) | IS 2720 Part 8 | Maximum dry density of WMM for road layer QC |
| Heavy Compaction — OMC (Wet Mix Macadam) | IS 2720 Part 8 | Optimum moisture content for WMM layer |
| Light Compaction — MDD (Soil) | IS 2720 Part 7 | Maximum dry density under standard Proctor energy |
| Light Compaction — OMC (Soil) | IS 2720 Part 7 | Optimum moisture content (standard Proctor) |
Shear Strength Parameters
| Test Name | Standard | What It Determines |
|---|---|---|
| Direct Shear Test — Cohesion | IS 2720 Part 13 | Cohesive shear strength parameter (c) of soil |
| Angle of Internal Friction | IS 2720 Part 13 | Frictional shear strength parameter (φ) of soil |
Table B — Additional Tests (Outside Accredited Scope)
| Test Name | Standard | What It Determines |
|---|---|---|
| Safe Bearing Capacity (SBC) | Derived from IS 2720 data | Ultimate and safe load-bearing capacity of foundation soil |
| Consolidation Test | IS 2720 Part 15 | Time-rate of settlement under load |
| Permeability Test | IS 2720 Part 17 | Rate of water flow through soil |
Why Choose Jancy Labs for Soil Testing?
Jancy Labs Private Limited is accredited vide Certificate No. TC-12176 under ISO/IEC 17025:2017 — so your soil test reports meet the documentation standard required by NHAI, PWD, TNRDC, and PMGSY contracts across Tamil Nadu.
Calibrated equipment specific to soil testing
Our Casagrande apparatus, CBR loading frame, direct shear box, and compaction moulds are calibrated on schedule. Therefore your results reflect instrument accuracy, not instrument age.
Tests conducted strictly per IS 2720 — no shortcuts
Sample preparation, conditioning periods, and test durations follow IS 2720 exactly. Your CBR report states the correct soaking period, and your compaction curve shows all plotted points, not just the peak.
Reports accepted by NHAI, PWD, TNRDC, PMGSY, and CPWD
Clients across Tamil Nadu have submitted our IS 2720 test reports to these departments. Because acceptance depends on your project's quality plan, confirm with your quality engineer before dispatch.
Turnaround confirmed before you dispatch
We agree your turnaround time before you send the sample. Results are then dispatched by courier, or you can collect them from our office.
Trusted across Tamil Nadu
Road contractors, highway consultants, and structural engineers across Tamil Nadu submit soil test reports generated under IS 2720 to the following departments and agencies.
Roads and highways
Clients have submitted our CBR, compaction, and gradation reports to NHAI, NHIDCL, PWD Tamil Nadu, TNRDC, MoRT&H, PMGSY, Southern Railway, RVNL, and IRCON for highway, expressway, and rail project quality control.
Buildings and urban infrastructure
Builders and structural consultants submit our compaction, CBR, and bearing-capacity reports for foundations, basements, and urban infrastructure quality control.
Water and irrigation
TWAD Board, Water Resources Department (WRD), CMWSSB, and TNIDB clients submit our embankment and subgrade soil reports for reservoir, canal, and pipeline project quality documentation.
Rural development
NABARD, PMGSY, DRDA, and Panchayat Raj Engineering contractors submit our IS 2720 compaction and CBR reports as part of rural road quality assurance files.
Frequently Asked Questions
What is the laboratory test of soil?
Is Jancy Labs accredited for soil testing?
Which soil tests fall within Jancy Labs' accredited scope?
Do clients submit Jancy Labs soil test reports to PWD, NHAI, or TNRDC?
Can I send soil samples by courier from anywhere in Tamil Nadu?
Where is Jancy Labs located?
Contact for Quote
Need IS 2720-compliant soil test reports for your road, foundation, or embankment project in Tamil Nadu? Send your samples to Jancy Labs — accredited, fast turnaround, and reports your department will accept.
Contact Jancy Labs
- Phone
+91-8680049004 / +91-9994421275 - Email
jancylabsmdu@gmail.com - Address
No.6, Ganesh Nagar 3rd Street, Surya Nagar, Madurai, Tamil Nadu — 625007 - Hours
Monday to Saturday — 10:00 AM to 6:00 PM
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