Cement Expansion&Shrinkage Tester

Cement Expansion/Shrinkage Tester

Model TG-4268

TG-4268 Cement Expansion/Shrinkage Tester is used to measure the expansion or shrinkage of a cement sample under high temperature and high-pressure conditions.

The system measures the change in volume of the sample using a diaphragm and displacement piston combined with a precision LVDT (Linear Variable Displacement Transducer). The resulting translation of the piston is scaled in units of milliliters (mL) or % expansion. The data is presented graphically using TG-5270 Data Acquisition and Control System.

TG-4268 Cement Expansion/Shrinkage Tester is equipped with the programmable temperature controller and a programmable pressure controller. Using the controllers, multiple segment ramp and dwell temperature and pressure schedules may be defined for the sample.

Features and Benefits

• Easy to install and use.
• Continuously measures the expansion or shrinkage of API Cement slurries
• Single vessel curing to preserve sample conditions and testing integrity. Sample is cured in the vessel, improving sample and test integrity.
• Programmable temperature and pressure control.
• Cement is isolated from the pressurizing media using a flexible diaphragm
• Uses TG-5270 Data Acquisition and Control System for data retrieval, analysis, and storage.

Technical Specifications

Measurements:    ±20 mL volume change of the cement sample, sample temperature, sample pressure. Piston displacement may reach 32 mL for initial sample compression

Vessel Volume:    200mL

LVDT Measurement Range:  ±0.50 inches (±12.7mm)

Operating Environment:  50°F – 110°F (10°C – 43°C)

Maximum Temperature:   400°F (204°C)

Maximum Pressure:           10,000 psig (69.1 MPa)

Input Voltage:     230+/-10% VAC, 50 Hz

Input Power:       2.5KW

Dimensions: 80x50x100cm,     Net weight: 110kg