Product Code : MSi 3069

Product Description

The MSI 3069 Swell Test Apparatus is designed to determine the swelling pressure developed by soil specimens compacted to the required density and moisture content when soaked in water.

During the test, the soil specimen is restrained against swelling. The resulting swelling force is transferred through a perforated swell plate and load transfer bar to a high-sensitivity proving ring. The proving ring is connected to the lead screw of the hand-operated loading frame, allowing the developed swelling pressure to be measured accurately.

A dedicated soaking tank is provided for saturating the specimen. The mould base incorporates channels and radial grooves with connecting holes to facilitate water access to the specimen.

Features

• Designed for determination of soil swelling pressure.

• Suitable for expansive soil testing.

• Hand-operated loading system.

• 50 kN (5,000 kgf) load frame capacity.

• High-sensitivity 2.5 kN proving ring.

• 100 mm diameter soil specimen mould.

• Specimen mould capacity of approximately 1,000 ml.

• Perforated swell plate for transferring swelling load.

• Soaking arrangement for specimen saturation.

• Dial gauge for measuring vertical movement.

• Robust construction for laboratory use.

Technical Specifications

Model Component Specification

MSI 3069-1 Load Frame Hand operated, 50 kN (5,000 kgf) capacity

MSI 3069-2 Mould 100 mm dia × 127.3 mm high, approx. 1,000 ml volume

MSI 3069-3 Proving Ring High sensitivity, 2.5 kN (250 kgf) capacity, integral boss

MSI 3069-4 Dial Gauge 25 mm travel × 0.01 mm least count

MSI 3069-5 Perforated Swell Plate 100 mm dia × 16 mm thick

MSI 3069-6 Spacer 100 mm dia × 12.7 mm thick

Main Components

MSI 3069-1 – Hand Operated Load Frame
Heavy-duty hand-operated loading frame with a capacity of 50 kN (5,000 kgf) for applying and maintaining the required restraint during the swell test.

MSI 3069-2 – Soil Specimen Mould
The mould has a 100 mm diameter × 127.3 mm height and approximately 1,000 ml capacity, suitable for preparing the soil specimen at the required density and moisture content.

MSI 3069-3 – High-Sensitivity Proving Ring
A 2.5 kN (250 kgf) proving ring with integral boss is used for measuring the swelling load generated by the restrained specimen.

MSI 3069-4 – Dial Gauge
A precision dial gauge with 25 mm travel and 0.01 mm least count is provided for monitoring specimen movement.

MSI 3069-5 – Perforated Swell Plate
The 100 mm diameter × 16 mm thick perforated plate transfers the swelling force from the specimen to the loading and measurement system while permitting water access.

MSI 3069-6 – Spacer
A 100 mm diameter × 12.7 mm thick spacer is provided as part of the specimen loading arrangement.

Test Principle

The prepared soil specimen is placed in the mould and soaked with water. As the soil attempts to swell, the swelling movement is restrained. The resulting force is transferred through the swell plate and load-transfer arrangement to the proving ring, allowing the swelling pressure of the soil to be determined.

Applications

• Expansive soil testing

• Swelling pressure determination

• Foundation soil investigations

• Geotechnical laboratory testing

• Subgrade soil evaluation

• Soil mechanics research

• Civil engineering laboratories

• Research and educational institutions