Brazilian Indirect Tension Fixture

The Brazilian Indirect Tension Fixture LEITB100ASTMD3967 loads a rock disc across its diameter in a compression frame until the disc splits, and the indirect tensile strength is calculated from the failure load. The fixture follows ASTM D3967 and the ISRM suggested method. The Brazilian method is the standard indirect tensile test for brittle rock and concrete. The item is supplied as a fixture for use in a compression load frame; the frame is not part of the item.

How it works

The disc specimen sits between two curved jaws that apply a compressive line load along its diameter. Compression across the loaded diameter induces a tensile stress perpendicular to it, and the disc fails in tension along that line. The failure load is recorded and the Brazilian tensile strength is calculated from the failure load and the specimen dimensions.

The fixture is rated for 100 kN and made of stainless steel. Jaw sets are listed for specimen diameters of 38.1 mm (1.5 in), 42.0 mm (BX) and 54.7 mm (NX). Specimen thickness is 0.2 to 0.75 times the specimen diameter. Specimen size and jaw radius are selected per project.

What is included

• Brazilian splitting fixture with curved loading jaws for the specified core diameter

Specify for your project

• Core diameter: 38.1 mm, BX, NX or another size
• Specimen thickness range to be tested
• Load frame make, capacity and platen interface the fixture must fit
• Test standard to be reported: ASTM D3967 or the ISRM suggested method
• Expected failure load range

This description defines the product family. Guaranteed performance, included hardware, exclusions, interfaces and acceptance criteria are stated only in the project-specific technical proposal and approved datasheet.

Features

• Standard : ASTM D3967 and ISRM suggested method
• Manufacturer : Floxlab
• Rated force capacity : 100 kN
• Specimen diameter : Specimen diameter of up 38.1 mm (1.5 inch) BX for specimen diameter of 42.0 mm (1.654 inches) NX for specimen diameter of 54.7 mm (2.154 inches)
• Specimen thickness: between 0.2 to 0.75 x the specimen diameter
• Material: High grade stainless steel