NABL Accredited · Dimensional Calibration
Le-Chatelier Mould Calibration
(IS 10086 / IS 4031 — Soundness Testing Mould)
NABL-accredited calibration of Le-Chatelier moulds per IS 10086 — verifying 30mm diameter, height, initial indicator gap and hinge quality for cement soundness testing per IS 4031 Part 3.
IS 10086
Standard
±0.1mm
Accuracy
1 Day
Report TAT
NABL
Accredited
NABL Accredited Lab · ISO/IEC 17025:2017
Digital Reports via Autovity QLMS
Pan-India · 7 Lab Locations
Est. 2009 · 20,000+ Projects
Overview
What is the Le-Chatelier Mould Calibration?
The Le-Chatelier Mould is a split brass cylinder (30mm dia × 30mm height) for cement soundness per IS 4031 Part 3. After boiling, expansion in indicator gap measures unsoundness due to free lime or magnesia. Mould dimensions and indicator gap per IS 10086 affect measured expansion.
At Global Lab, Le-Chatelier mould calibration verifies: internal diameter (30±0.3mm), height (30±0.3mm), initial indicator gap (≤1mm per IS 4031 Part 3), indicator needle straightness and effective length, and hinge freedom — issuing NABL certificate confirming IS 10086 compliance.
Non-Destructive
Minimal surface preparation. Structure integrity is preserved throughout testing.
Fast Turnaround
On-site results within hours. Digital reports dispatched within 24 hours.
NABL Certified
All test and calibration results are backed by traceable measurements and standardized procedures.
Pan-India Coverage
Site engineers deployed across 7 lab locations and all major project sites.
Digital Reporting
Access reports anytime via Autovity QLMS client dashboard — zero paperwork.
High Accuracy
Results correlated to cube compressive strength with ±2% precision range.
Test in Action
Le-Chatelier Mould Calibration — Site Images
Le-Chatelier Mould Internal Diameter Measurement
Initial Indicator Gap Verified with Feeler Gauge ≤1mm
IS 10086 Certificate — Fit for IS 4031 Soundness Testing
Test Procedure
How the Le-Chatelier Mould Calibration is Conducted
-
1
Surface Preparation
A shallow groove (approx. 25mm deep) is cut into the concrete surface using a diamond-tipped cutting tool. The surface is cleaned of dust and debris. -
2
Insert Disc Placement
A specially designed steel insert disc is placed into the groove. A thin rod connects the disc to the pullout apparatus above the surface. -
3
Hydraulic Pullout Force Application
A hydraulic jack applies a steady, controlled pullout force to the insert disc via the reaction ring resting on the concrete surface. -
4
Failure Load Recording
The maximum force at which the concrete cone is extracted is recorded. A digital load indicator provides real-time readings with data logging. -
5
Strength Calculation & Reporting
The pullout force is correlated to cube compressive strength using established calibration curves. NABL-accredited reports are issued via Autovity QLMS.
Standards & Specifications
Applicable Test Standards
| Standard | Title | Scope | Type |
|---|---|---|---|
| IS 10086 | Specification for Moulds for Tests of Cement and Concrete | Mould Standard | Indian Standard |
| IS 4031 Part 3 | Physical Tests for Hydraulic Cement — Soundness | Soundness Test | Indian Standard |
| IS 3651 | Vernier Calipers | Reference Instrument | Indian Standard |
| NABL-141 | NABL Policy on Metrological Traceability | Traceability | NABL |
Applications
Where is the Le-Chatelier Mould Calibration Used?
Annual Le-Chatelier mould calibration for NABL cement laboratory
IS 4031 Part 3 cement soundness mould compliance
RMC plant cement QC Le-Chatelier calibration
BIS-licensed cement manufacturer testing laboratory
Pre-NABL assessment for cement lab scope
Soundness dispute investigation mould calibration
Why Choose Global Lab
Our Advantages
NABL Accredited CertificatesIS 10086 Le-Chatelier certificates for cement lab NABL assessment.
Initial Gap DocumentedPre-test gap certified — prevents false soundness readings.
Fast 1-Day CertificateCertificate within 1 working day.
Cement Lab PackageLe-Chatelier + Vicat + Gang + Shrinkage in one visit.
Pan-India CoverageDimensional calibration at all 7 locations.
Cement Lab ExpertiseExperienced in complete IS 4031 equipment calibration.