Accelerated Curing Tank Calibration(IS 9013 — Method Temperatures)
Calibration of accelerated curing tanks — verification of the IS 9013 method temperatures (warm-water 55°C / boiling-water regimes), timer accuracy and temperature uniformity with traceable sensors.
What is Accelerated Curing Tank Calibration?
Accelerated curing per IS 9013:1978 (Method of Making, Curing and Determining Compressive Strength of Accelerated-Cured Concrete Test Specimens) predicts 28-day strength in ~1–2 days — but the prediction correlations assume the tank truly delivers the method temperature profile (warm-water 55±2°C or the boiling-water regime) for the prescribed durations.
Global Lab verifies tank temperature at multiple positions with traceable sensors through full method cycles, checks timer/sequence accuracy, and certifies method compliance — protecting the validity of every accelerated-strength prediction the tank produces.
How the Accelerated Curing Tank Calibration is Conducted
- 1
Sensor Placement
Traceable sensors are positioned across the tank per the mapping plan. - 2
Method-Cycle Run
The tank runs its curing cycle with temperatures logged throughout. - 3
Timer Verification
Cycle timers are checked against a reference chronometer. - 4
Evaluation
Profiles are evaluated against IS 9013 temperature and duration requirements. - 5
Certification
Cycle logs and compliance verdicts are issued via Autovity QLMS.
Applicable Test Standards
| Standard | Title | Scope | Type |
|---|---|---|---|
| IS 9013:1978 | Method of Making, Curing and Determining Compressive Strength of Accelerated-Cured Concrete Test Specimens (Reaffirmed) | Method Requirements | Indian Standard |
| ISO/IEC 17025:2017 | Competence of Testing and Calibration Laboratories | Calibration System | International |