Shrinkage Mould Calibration

Shrinkage Mould Calibration
(IS 10086 — Cement Shrinkage Bar Mould)

NABL-accredited dimensional calibration of shrinkage bar moulds per IS 10086 — verifying 25×25×285mm cavity dimensions, end plate squareness and gauge stud positioning for IS 4031 cement drying shrinkage tests.

Overview

What is the Shrinkage Mould Calibration?

Shrinkage Moulds produce 25×25×285mm cement mortar bars for drying shrinkage per IS 4031 Part 10. The 285mm internal length determines the gauge length used in shrinkage strain = ΔL/L₀ × 100. IS 10086: length ±0.5mm, cross-section ±0.2mm, stud positioning ±0.2mm.

At Global Lab, shrinkage mould calibration covers: internal cavity L×B×H, end plate flatness, stud positioning from end face, overall mould alignment per IS 10086. The gauge length between stud reference points is certified — the critical dimension for shrinkage strain calculation.

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

Shrinkage Mould Calibration — Site Images

Shrinkage Mould Cavity Dimension Measurement

Stud-to-Stud Gauge Length Verification

IS 10086 Certified Gauge Length for Shrinkage Calculation

Test Procedure

How the Shrinkage 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 10	Physical Tests for Hydraulic Cement — Drying Shrinkage	Shrinkage Test	Indian Standard
IS 1199	Methods of Sampling and Analysis of Concrete	Reference	Indian Standard
NABL-141	NABL Policy on Metrological Traceability	Traceability	NABL

Applications

Where is the Shrinkage Mould Calibration Used?

Annual shrinkage mould calibration for NABL cement laboratory

IS 4031 Part 10 drying shrinkage mould calibration

Admixture shrinkage evaluation mould calibration

Research cement chemistry shrinkage mould

New mould acceptance before first use

Pre-NABL assessment for cement lab scope

Why Choose Global Lab

Our Advantages

NABL Accredited CertificatesIS 10086 shrinkage mould certificates with certified gauge length.

Gauge Length CriticalCertified stud-to-stud length eliminates systematic shrinkage error.

Fast 1-Day CertificateCertificate within 1 working day.

Batch CalibrationSet of 3 or 6 moulds together.

Pan-India CoverageDimensional calibration at all 7 locations.

Cement Lab ExpertiseExperienced in complete IS 4031 cement lab calibration.

Shrinkage Mould Calibration(IS 10086 — Cement Shrinkage Bar Mould)