The verdict in three sentences
A testing lab handling 15,000 specimens a year for 200 sites stakes its reputation on every missed crushing date and every late report. A custom construction materials LIMS (labelled sampling, 7 and 28 day crushing schedules, press data capture, EN-compliant reports, client portal) costs 30,000 to 70,000 EUR excluding VAT in 2026. Expected gains: late reports divided by 4, full traceability for the COFRAC (ISO/IEC 17025) audit and clients informed without phone calls.
The real cost of managing specimens by hand
Each pour generates a sample of 3 to 9 specimens, made under EN 12390-2, cured in a moist room then crushed at 7 and 28 days under EN 12390-3. With a paper log or spreadsheet, the errors are well known: labels unreadable after curing, specimens forgotten at day 28, results retyped from the press display, reports sent a week after the test. When a result fails, the site waits for a decision, sometimes with a slab already poured above the doubtful concrete.
| Indicator (2026 order of magnitude) | Paper log or spreadsheet | With custom LIMS |
|---|---|---|
| Specimens crushed off schedule | 2 to 4% | under 0.3% |
| Average time to send report after test | 4 to 6 days | 1 day |
| Late reports per month | 80 to 120 | 20 to 30 |
| Failure load retyping errors | 1 per 200 tests | 0, direct capture |
| Preparing an accreditation audit | 8 to 12 person-days | 2 to 3 person-days |
| Client calls asking for a result | 15 to 25 per week | 2 to 5 per week |
| Entry time per batch of 6 specimens | 12 minutes | 3 minutes |
The modules of a construction-ready LIMS
The flow starts on site: the technician creates the sample on a tablet, prints or sticks a QR label, records the strength class, slump, temperature and delivery note number. The software calculates crushing dates and feeds the press schedule. At test time, the failure load comes straight from the press, stress is calculated and compared with EN 206 conformity criteria. The report is generated, e-signed and published on the client portal.
| Module | Functions | Estimated 2026 budget (excl. VAT) |
|---|---|---|
| Field sampling | Tablet app, QR code, geolocation, delivery note photo | 5,000 to 10,000 EUR |
| Test planning | 2, 7, 28 and 90 day deadlines, load per press, alerts | 4,000 to 8,000 EUR |
| Press data capture | Serial or network link, load and curve retrieval | 6,000 to 15,000 EUR |
| Soil and aggregate tests | Proctor, CBR, grading, sand equivalent, moisture content | 5,000 to 12,000 EUR |
| EN reports and conformity | Templates, signature, EN 206 conformity calculation | 4,000 to 10,000 EUR |
| Quality and accreditation | Calibration, metrology, operator authorisations, audit trail | 3,000 to 8,000 EUR |
| Client portal and invoicing | Online results, non-conformity alerts, invoicing per site | 3,000 to 7,000 EUR |
| Total | Delivery in 4 to 7 months | 30,000 to 70,000 EUR excl. VAT |
Off-the-shelf LIMS often cost 40,000 to 120,000 EUR in licences and configuration, with modules designed for chemistry or biology. Custom software makes sense when the lab wants its own report templates, a branded client portal and control of existing presses without replacing them.
Accreditation requirements to include from scoping
A lab accredited to ISO/IEC 17025 must prove the traceability of every result. The software must therefore keep a time-stamped history of every change with author and reason, block a press whose calibration has expired, and check that the operator is authorised for the test. These rules cost little to build in from the start, 3,000 to 8,000 EUR, and a lot to add later. Scoping, 3 to 4 weeks, also inventories the presses and their communication protocols, since that is the project's top risk.
Mini case study
Jérôme, director of a materials testing lab near Nantes, handles 15,000 specimens a year across 200 sites. At 3% crushed off schedule, 450 tests a year must be justified or redone, about 450 × 35 EUR = 15,750 EUR in rework and goodwill. His technicians spend 12 minutes of data entry per batch of 6 specimens, that is 500 hours a year for 2,500 batches; at 3 minutes, he saves 375 hours, about 15,000 EUR at 40 EUR per loaded hour. Add 7 audit person-days saved (about 3,500 EUR): the gain exceeds 34,000 EUR per year. Software at 55,000 EUR excluding VAT pays back in under 20 months, not counting contracts won thanks to the client portal.
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FAQ
Can we connect our current presses?
Yes in most cases: recent presses provide a serial, USB or network output. For older models, an acquisition box costing 800 to 2,000 EUR per press is usually enough.
Is the software compatible with accreditation?
It is designed for ISO/IEC 17025: change history, calibration and authorisation management. Accreditation is still granted to the lab, but audit preparation drops from 8 to 12 person-days to 2 or 3.
How long does the project take?
Allow 4 to 7 months, including 3 to 4 weeks of scoping. The concrete module (sampling, deadlines, reports) can go live in 12 weeks, ahead of soil and aggregate tests.
Can clients see their results online?
Yes, the portal shows results per site as soon as they are validated, with an email alert for non-conformities. Client calls typically fall from 20 to 4 per week.
What budget after go-live?
Hosting, backups and maintenance run 400 to 900 EUR excluding VAT per month depending on user count and archived report volume.
Let's scope your project. Share your test volumes, presses and accreditation requirements: we price a scope between 30,000 and 70,000 EUR excluding VAT with go-live in 4 to 7 months. Detailed quote within 48 h. WhatsApp +221 77 596 93 33.
Mohamed Bah
Fondateur, Kolonell
Passionate about digital and entrepreneurship in Africa, Mohamed has been helping Sénégalese businesses with their digital transformation since 2020. Founder of Kolonell, he believes every SME deserves a professional and accessible online présence.
