Liquid Limit Machine, Hand Operated

Liquid Limit Machine, Hand Operated

The hand-operated ASTM Manual Liquid Limit Machine is designed for precise soil testing, determining the Liquid Limit of soil, which is the moisture content at which soil transitions from a liquid to a plastic state. The device plays a crucial role in evaluating soil consistency and strength for geotechnical and civil engineering applications.

This machine features a durable brass cup suspended from a calibrated carriage that ensures an exact 1cm drop onto a hard rubber base. The height of the drop is meticulously adjustable via a rear nut on the cup carriage, using the gauge located on the included plastic Casagrande grooving tool. The brass cup is easily detachable, allowing for quick cleaning and inspection. All mechanical components are made from solid brass for longevity, while rubber feet provide stability and isolate the base from the work surface, minimizing vibrations.

The test involves placing a soil sample in the cup and using the grooving tool to create a channel. The Liquid Limit is determined by counting the number of drops required for the two halves of the soil sample to flow together. This standardized method ensures consistent and reliable results.

Additional Features:

• Rugged construction for long-term use in laboratory environments.
• Easy-to-use, manual operation for total control over the testing process.
• Compact design, ideal for both portable fieldwork and fixed lab setups.

Applications:

The Liquid Limit Machine is essential for geotechnical testing, aiding in soil classification and the determination of Atterberg limits. It is widely used in civil engineering projects, soil analysis labs, and construction quality control.

Test Methods Compliance:

• AASHTO T89
• AASHTO T90
• ASTM D4318

This machine is a reliable tool for professionals working with soil mechanics, providing accurate and repeatable results to support engineering decisions.