Jancy Labs — Trusted Design Mix Testing Lab
NABL Accredited Laboratory (Certificate No. TC-12176) as per ISO/IEC 17025:2017
Jancy Labs is a professional building materials testing laboratory in Madurai, Tamil Nadu. We conduct concrete mix design, GSB mix design, and WMM mix design testing for contractors and consultants across Tamil Nadu. A wrong mix ratio can fail a quality audit — or worse, fail under load.
What Is Design Mix Testing?
A concrete mix design — also called a concrete mixture design or cement mix design — determines the correct proportions of cement, aggregates, water, and admixtures needed to achieve the required strength and performance for a specific project. Engineers and contractors use these tests to produce an approved mix design report before construction begins.
Skipping this process puts your project at risk of rejection during quality audits by departments like NHAI, PWD, Railways, and PMGSY. A failed pavement or structural element because of an untested mix can cost several times more to rectify than the test itself.
Design Mix Testing Services
We conduct three design mix tests at our Madurai lab — each structured against the applicable IS standard or MoRT&H specification, not a generic template:
Concrete Design Mix (M10–M60)
Our concrete mix design service determines the optimum water-cement ratio, aggregate gradation, and admixture dosage to achieve the target mean strength for grades M10 through M60. The concrete mixture design report follows IS 10262:2019 and includes trial mix data, strength calculations, and w/c ratio determination — accepted by NHAI, PWD, Railways, CPWD, and PMGSY project offices.
IS 10262:2019GSB Mix Design
Granular Sub Base (GSB) mix design is prepared as per MoRT&H Specifications (Table 400-1), with full gradation analysis and compaction data. GSB is the structural foundation layer beneath road pavements — a correct mix design ensures adequate load distribution and long-term drainage performance.
MoRT&H Table 400-1WMM Mix Design
Wet Mix Macadam (WMM) mix design is prepared per MoRT&H Specifications (Table 400-8) and defines the aggregate blend and moisture content for the base course used in highways and rural roads. Correct WMM mix design is essential for achieving the required CBR and bearing capacity beneath bituminous surfacing layers.
MoRT&H Table 400-8Full Test List
All design mix tests at Jancy Labs follow the applicable IS standard or MoRT&H specification. Below is a quick reference:
| Mix Type | IS Standard / Reference | Application |
|---|---|---|
| Concrete Design Mix (M10–M60) | IS 10262:2019 | Structural concrete for buildings, bridges, and foundations |
| GSB Mix Design | MoRT&H Table 400-1 | Granular Sub Base layer for road pavement |
| WMM Mix Design | MoRT&H Table 400-8 | Wet Mix Macadam base course for highways and rural roads |
Note: All tests follow the applicable IS standard or MoRT&H specification. Reports are signed by a qualified civil or materials engineer with design mix experience.
Why Choose Jancy Labs for Design Mix Testing?
We understand what your project approval requires — and we structure our concrete mix design reports accordingly:
- IS 10262:2019-compliant concrete mix design reports — including target mean strength calculations, w/c ratio determination, and trial mix data ready for submission.
- GSB and WMM mix designs per MoRT&H specifications — with gradation analysis and compaction data prepared to department audit standards.
- Engineer-signed reports — every concrete mixture design report is signed by a qualified civil or materials engineer with design mix experience, satisfying department QC requirements.
- Accepted by major government agencies — NHAI, PWD, Railways, AAI, CPWD, and PMGSY project offices have accepted Jancy Labs' design mix reports for quality submissions.
- Project-specific programmes — our engineers design every test programme against your project specification, not a generic template.
- ISO 17025:2017-aligned procedures — lab maintains calibrated equipment and traceable measurement practices in line with NABL accreditation principles.
- Turnaround structured to your timeline — contact us to discuss urgency and fast-track options.
The Cost of Skipping a Proper Mix Design
Submitting a mix design report without proper testing support is a common reason for quality audit failures on government projects. Departments increasingly require test reports that reference the applicable IS standard or MoRT&H table — and verify that the laboratory follows documented procedures.
A failed audit means delays, additional testing, and potential rejection of work already completed. An independent, NABL-aligned concrete mix design report from Jancy Labs eliminates that risk — giving your project team, client, and the approving authority confidence in the mix from day one.
Who We Serve
Jancy Labs provides design mix testing services to contractors and consultants working on projects for:
Roads & Highways
NHAI, PWD, TNRDC, MoRT&H, PMGSY, Southern Railway, RVNL
Buildings & Urban Infrastructure
CPWD, TNPWD, CMDA, DTCP, TNHB, TIDCO, Smart Cities, ULBs
Rural Development
NABARD, PMGSY, DRDA, Panchayat Raj Engineering
Energy & Industrial
TANGEDCO, SIPCOT, NTPC
Departments increasingly require design mix reports that reference the applicable IS standard or MoRT&H table — and verify that the laboratory follows documented procedures. Jancy Labs is structured to meet that requirement.
How to Get Your Design Mix Report
Getting your concrete mix design or road mix design report from Jancy Labs is straightforward:
Contact Us First
Call or WhatsApp us with your project specification — concrete grade required, aggregate source, and department submitting to. We will confirm the sample quantity, packaging, and transport requirements.
Send Your Materials
Courier or deliver your material samples — cement, coarse aggregate, fine aggregate, and admixtures (for concrete mix design) or aggregate samples (for GSB/WMM). We confirm receipt and start testing within the agreed schedule.
Testing & Trial Mixes
Our engineers prepare the concrete mixture design or road mix design following IS 10262:2019 or MoRT&H specifications. Trial mixes are cast and tested for workability, unit weight, and compressive strength.
Certified Report Issued
You receive a complete, engineer-signed mix design report — structured for your department's submission requirements, with all data tables, graphs, and IS/MoRT&H references. Ready to submit.
Frequently Asked Questions
Is Jancy Labs equipped to conduct design mix testing?
What is a concrete mix design and why is it needed?
Which design mix tests does Jancy Labs conduct?
Do NHAI and PWD accept Jancy Labs mix design reports?
What is the difference between a concrete mix design and a nominal mix?
Can I send samples by courier?
What is GSB and WMM mix design?
Get Low Cost, High Quality Mix Designs
Need a design mix test report for your project? Send your sample today and get a structured report that meets IS 10262:2019 and MoRT&H specifications — ready for department submission.
Contact Information
- Registered Office & Laboratory
Jancy Labs Pvt Ltd, No.6, Ganesh Nagar 3rd Street, Surya Nagar, Alagar Kovil Main Road, K.Pudur, Madurai – 625007 - Phone
+91-8680049004 · +91-9994421275 - Email
jancylabsmdu@gmail.com - Working Hours
Monday to Saturday : 10:00 AM – 6:00 PM
Request a Quote
Tell us your project type, concrete grade or mix required, and the submitting department — we'll get back to you promptly.