The Length Comparator is a precision instrument designed to measure length changes in hardened cement paste, mortar, and concrete prisms, essential for assessing dimensional stability and potential expansion or shrinkage.
Equipped with a high-resolution digital gauge (12.7 mm travel, 0.001 mm resolution), it ensures accurate and repeatable measurements, facilitating compliance with stringent testing standards.
The apparatus features a sturdy two-column steel frame with an adjustable top anvil, accommodating specimens of varying lengths up to 300 mm, enhancing versatility in testing applications.
An Invar reference bar is utilized for calibration, providing a stable baseline for precise length change measurements over time.
The comparator is compatible with various specimen sizes and configurations, aligning with international standards for evaluating the dimensional stability of cementitious materials.
