The Gilmore Needle Apparatus is a device used to determine the initial and final setting time of cement paste. It consists of a set of two weighted needles mounted on separate arms and used to test the resistance of cement paste to penetration under  specific weights and dimensions.

• To measure the setting characteristics of cement as it hardens over time.
• Used to determine initial setting time (beginning of stiffening) and final setting time (completion of stiffening).
• Assists in quality control of cement batches to ensure they comply with  construction timelines and standards.
• Essential for research and comparative analysis of different cement types and admixtures.

A cement paste is prepared and placed on a glass plate or base.

• The Gilmore needles are gently lowered to contact the surface at set intervals.
• The initial setting time is recorded when the lighter needle (113.4 g) fails to penetrate 25 mm.
• The final setting time is recorded when the heavier needle (453.6 g) fails to leave any impression.
• Accurate timing ensures correct placement and curing timing in field applications.

Standardized Dimensions: Precision-ground needles meet IS and ASTM standards.

• Accurate Weighting: Calibrated for exact penetration force.
• Rigid Frame: Ensures vertical movement of the needle without deviation.
• Easy Reset: Manual lifting mechanism for repeated testing cycles.
• Durable Materials: Made from rust-resistant brass or stainless steel.