Concrete Mix Design Service
Starting a structural pour without a proper mix design is, therefore, the fastest way to fail a site inspection. Jancy Labs, consequently, provides a complete concrete mix design service for PCC and RCC grades M10 through M60, following IS 10262:2019 methodology.
Moreover, our component tests — aggregate grading, specific gravity, and cement physical properties — are conducted under NABL accreditation TC-12176 (ISO/IEC 17025:2017), giving your design report a credible, traceable foundation.
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What Is Concrete Mix Design?
A concrete mix design tells you, specifically, the exact proportions of cement, fine aggregate, coarse aggregate, and water needed to achieve your target strength grade on site. This service is, therefore, not about testing hardened concrete — it is the upstream engineering step that determines whether your concrete will reach M30, M40, or M50 in the first place. Consequently, getting the proportions wrong wastes cement, inflates costs, and risks structural failure during inspection.
Applicable Standards — IS 10262:2019
Jancy Labs conducts this service strictly as per IS 10262:2019 — Concrete Mix Proportioning: Guidelines. Specifically, IS 10262:2019 sets out the complete methodology for proportioning concrete mixes based on target mean strength, standard deviation, and material properties. Furthermore, all component material tests follow their respective IS standards.
Additionally, the individual tests supporting your mix design follow:
- IS 383:2016 — Coarse and Fine Aggregate Specification
- IS 12269:2013 / IS 8112:2013 — Ordinary Portland Cement Specification
Why This Service Matters for Your Project
A properly documented concrete mix design, moreover, protects your project at every approval stage. Specifically, here is what it delivers:
- Structural compliance: CPWD, TNPWD, and CMDA require an IS 10262:2019-compliant mix design for all RCC work — therefore, no mix design means no structural approval.
- Cost control: A properly proportioned mix prevents over-cementation; consequently, even a 5% cement reduction on a large pour saves significant material cost without compromising strength.
- Tender compliance: NHAI, PWD, and PMGSY tenders specifically ask for mix design reports at the QC submission stage — furthermore, missing this document delays your billing cycle.
- Site rejection avoidance: Contractors using nominal mixes on engineered structures risk third-party audit rejection; however, a documented design mix provides defensible, traceable evidence.
- Grade-specific optimisation: High-strength grades like M50 and M60 need precisely controlled w/c ratios — as a result, only a designed mix can reliably and consistently hit these targets.
- TANGEDCO and MES projects: Infrastructure projects under TANGEDCO, MES, and BRO increasingly mandate design mix documentation — notably, this applies to all structural concrete elements.
Skipping a proper mix design on a government-funded structural project is, therefore, not a cost saving — it is, in fact, a compliance risk that can halt your entire project mid-execution.
Why Choose Jancy Labs for Concrete Mix Design?
Jancy Labs, specifically, prepares IS 10262:2019 mix designs backed by NABL-accredited material testing — so your report, consequently, has a traceable, credible foundation your consultant can stand behind.
- NABL-accredited aggregate and cement testing (TC-12176 | ISO/IEC 17025:2017) forms, moreover, the basis of every mix design
- Mix design methodology follows IS 10262:2019 strictly — consequently, there are no shortcut calculations
- Mix design reports are, furthermore, reviewed and signed by a qualified Materials Engineer
- Full transparency — the report, specifically, states which component tests are under NABL scope
- CPWD, TNPWD, and PWD, therefore, accept this report for design mix submissions
- Structural and infrastructure engineers across Tamil Nadu, additionally, trust Jancy Labs for concrete mix design service
How to Get Your Concrete Mix Design Done
Step 1 — Send Your Samples and Project Details
To prepare your mix design as per IS 10262:2019, Jancy Labs requires the following material samples and project information.
Material Samples Required:
| Material | Approximate Quantity |
|---|---|
| Coarse Aggregate (20mm) | 50–75 kg |
| Coarse Aggregate (12.5mm or 10mm, if applicable) | 25–40 kg |
| Fine Aggregate (river sand or M-sand) | 30–40 kg |
| Ordinary Portland Cement (53 Grade / 43 Grade) | 25–40 kg |
Exact quantities may vary based on number of design grades and trial mix batches.
Mix Design Variants Covered:
| Type | Grades |
|---|---|
| PCC (Plain Cement Concrete) | M10, M15 |
| RCC (Reinforced Cement Concrete) | M20, M25, M30, M35, M40, M45, M50, M55, M60 |
How to Collect Samples:
- Collect aggregate samples from the actual stockpile or quarry supply intended for your project
- Avoid collecting from segregated or weathered surface material
- Use the same cement brand and grade as planned for site use
How to Pack:
- Pack aggregates in heavy-duty sealed polythene bags or jute bags
- Label each bag: Project Name | Site Location | Material Type | Grade/Size | Sample ID | Date
Dispatch Options:
| Method | Details |
|---|---|
| Courier | Standard courier to address below |
| Transport / Lorry | Acceptable for bulk samples |
| Drop-in | Monday to Saturday, 10 AM – 6 PM |
Send To: No.6, Ganesh Nagar 3rd Street, K.Pudur, Madurai — 625007 WhatsApp before dispatch: +91-8680049004
Step 2 — We Test and Design
Additionally, please share the following project details at the time of sample submission:
- Required concrete grade(s) and type (PCC / RCC)
- Exposure condition (mild / moderate / severe / very severe)
- Maximum nominal aggregate size
- Workability requirement (slump in mm)
- Whether admixtures are intended
Jancy Labs first performs NABL-accredited component tests on the submitted aggregates and cement — including sieve analysis, specific gravity, water absorption, and cement physical properties, all as per relevant IS standards. Subsequently, our Materials Engineer uses these test results to calculate mix proportions following IS 10262:2019. We then prepare trial mixes and cast concrete cubes for 7-day and 28-day compressive strength verification.
Turnaround: Mix design completion requires 28 days from sample receipt due to mandatory cube curing.
Step 3 — You Receive Your Certified Report
Your concrete mix design report from Jancy Labs contains:
| Report Element | Details |
|---|---|
| Sample & Project Reference | Project name, site, sample IDs, date of receipt |
| Standards Cited | IS 10262:2019 + individual material IS standards |
| Material Properties | Aggregate gradation, specific gravity, water absorption; cement physical properties |
| Mix Proportions | Cement : FA : CA : w/c ratio (per m³) |
| Trial Mix Results | 7-day and 28-day cube compressive strength |
Report Delivery:
| Mode | Details |
|---|---|
| Email PDF | Within 24 hours of results being ready |
| Physical Copy | On request, dispatched by courier |
CPWD, TNPWD, and PWD accept this report for design mix submissions.
Our Concrete Mix Design Process — as per IS 10262:2019
- First, collect and register the client’s aggregate and cement samples along with project details and exposure condition
- Next, conduct NABL-accredited sieve analysis and specific gravity tests on coarse and fine aggregates as per IS 383:2016
- Then, perform NABL-accredited cement testing — specifically fineness, consistency, setting time, and compressive strength — as per the IS 4031 series
- Subsequently, determine target mean strength based on the design grade, standard deviation, and risk factor as per IS 10262:2019 Clause 3
Finalising the Concrete Mix Proportions
- Consequently, calculate the water-cement ratio, water content, and cement content using IS 10262:2019 design tables and the verified material test data
- Next, proportion fine and coarse aggregates by volume or mass to achieve the target workability and specified grading requirements
- Then, prepare trial mixes, check workability by slump test, and cast concrete cubes — specifically 3 cubes for 7-day and 3 cubes for 28-day testing
- Finally, test cubes at 7 days and 28 days; subsequently verify results against the target mean strength and IS 456:2000 acceptance criteria
A qualified Materials Engineer, therefore, reviews every concrete mix design result and signs the report before we dispatch it.
Concrete Mix Design — Frequently Asked Questions
1. How long does a concrete mix design take at Jancy Labs?
A complete mix design, consequently, takes 28 days because IS 10262:2019 requires 28-day cube compressive strength as the final acceptance criterion. However, Jancy Labs issues a preliminary mix proportion report within 5–7 working days of receiving samples, so you can, therefore, plan your procurement schedule well in advance. Contact us if your project has a tighter timeline and we will, furthermore, advise on the best available options.
2. Can I send samples by courier to Jancy Labs?
Yes — you can, therefore, courier your aggregate and cement samples directly to our lab at No.6, Ganesh Nagar 3rd Street, K.Pudur, Madurai — 625007. Pack all materials in sealed bags, label them clearly with project name and material type, and, additionally, share the filled sample submission form along with your dispatch. Furthermore, WhatsApp us at +91-8680049004 before dispatch so Jancy Labs can register and track your samples on arrival.
3. Is your concrete mix design report accepted by CPWD and PWD?
Yes — Jancy Labs’ mix design report follows IS 10262:2019 and, moreover, includes NABL-accredited component test results (TC-12176 | ISO/IEC 17025:2017) for aggregate and cement. However, please note that the mix design calculation itself is not under direct NABL scope — only the supporting material tests are. CPWD, TNPWD, and PWD, therefore, generally accept reports backed by NABL-accredited material testing; consequently, confirm specific format requirements with your project engineer before submission.
4. Do you conduct mix design for all grades from M10 to M60?
Yes — Jancy Labs, specifically, prepares concrete mix designs for PCC grades M10 and M15, and all RCC grades from M20 through M60. Each design is, moreover, specific to your project’s exposure condition, target strength, maximum aggregate size, and actual material properties. Furthermore, if you need multiple grades for a single project — for example, M25 for slabs and M40 for columns — we can, therefore, package them together at a combined rate. Contact us for a quote.
5. How much sample do I need for a concrete mix design?
Typically, you need approximately 50–75 kg of coarse aggregate, 30–40 kg of fine aggregate, and 25–40 kg of cement per design grade. However, exact quantities depend, moreover, on the number of trial mixes and whether any material tests need repeating. Additionally, share your cement brand, grade, and source of aggregate so Jancy Labs can, consequently, confirm the full sample requirement before you dispatch anything.
Get Your Concrete Mix Design Report Today
Need your concrete mix design report for an upcoming pour or project submission? Don’t delay — approvals from CPWD, PWD, and TNPWD require a documented mix design before structural work begins.
| Contact | 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 |
You May Also Need These Tests
These component tests are part of the mix design process and are conducted under NABL accreditation at Jancy Labs:
- Aggregate Sieve Analysis (Gradation Test) — Required for every mix design
- Cement Physical Properties Testing — Fineness, setting time, compressive strength tested as per IS 4031 series
- Concrete Compressive Strength (Cube Test) — Post-pour verification of your mix design on site. View Concrete Testing Services