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Home > Soil Lab Test > High-Quality Casagrande method mortised liquid limit device for soil lab test  Manufacturer, Suppliers
High-Quality Casagrande method mortised liquid limit device for soil lab test  Manufacturer, Suppliers
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High-Quality Casagrande method mortised liquid limit device for soil lab test  Manufacturer, Suppliers

High-Quality Casagrande method mortised liquid limit device for soil lab test  Manufacturer, Suppliers

This Liquid Limit Devices is extensively used to ascertain the liquid limit of soil as well as the plasticity index of soil. Made using finest grade raw material so as to maintain the quality in accordance with the international standards. These are offered at industry leading prices.
 
Feature:

● Long lasting
● Automatically records the no. of drops
● Fitted with a drop counter
● Corrosion resistance

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Product Description

Product Description

The Casagrande Liquid Limit Device is a precision laboratory instrument used to determine the Liquid Limit (LL) of soil. The liquid limit represents the specific moisture content at which soil transitions from a plastic state to a liquid state. It is a critical component of the Atterberg Limits, essential for professional soil classification and engineering property assessment.

Main Components
  • Copper Plate: A circular metal plate designed to swing around an axis to hold soil samples.
  • Base: Heavy-duty support for the copper disc, equipped with standardized hard rubber pads.
  • Handle and Cam Mechanism: Manual rotation drives the cam, causing the disc to fall from a fixed height of 10mm at a rate of 2 drops per second.
  • Groove Tool: Used to create a standard 2mm wide groove on the soil sample surface.
Casagrande Liquid Limit Device Components
Working Principle
Casagrande Method Testing Process
  1. Prepare a uniform soil paste by mixing the sample with water and placing it in the copper dish.
  2. Create a standard groove on the soil surface using the specialized grooving tool.
  3. Operate the handle to drop the copper disc repeatedly at a consistent height and speed.
  4. Count and record the number of blows (N) required for the groove to close over a length of 13mm.
  5. Calculate the moisture content (w) at this point to determine the liquid limit.
Technical Parameters
Evaporating Dish 4.5-inch (114.3 mm) diameter porcelain evaporating dish
Mixing Knife 3 inches (76.2 mm) long and 3/4 inches (19 mm) wide blade
Liquid Limit Meter Mechanical device with copper disk and integrated stand
Groover Standardized grooving tool with measuring gauge
Capacity Container Covered dish to prevent moisture loss during weighing
Balance Sensitivity 0.01 grams
Exterior Dimensions 290 x 240 x 150 mm
Net Weight 3.8 kg
Frequently Asked Questions
Q1: What is the main purpose of the Casagrande Liquid Limit Device?
It is used in soil mechanics to determine the moisture content at which soil changes from a plastic to a liquid state, which is vital for engineering classification.
Q2: What is the standard drop height for the copper plate?
The device is calibrated so that the copper plate falls from a fixed height of exactly 10 millimeters.
Q3: How many blows per second should the device deliver?
The standard operating rate for the handle rotation is 2 blows per second.
Q4: What length of groove closure defines the test result?
The test records the number of blows required for the groove in the soil sample to close over a distance of 13 millimeters.
Q5: What are the dimensions and weight of the device?
The device measures 290 x 240 x 150mm and weighs approximately 3.8kg, making it portable for laboratory use.
Q6: Why is a covered container used in the process?
A covered container is essential to prevent any loss of moisture from the soil sample during the weighing process, ensuring accurate liquid limit calculations.

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