Split Mould For Soil Triaxial Test Geotechnical Lab
A split mould is a tool used to prepare soil samples for triaxial tests, particularly for granular soils and soft clays. It consists of two or more pieces that are assembled to form a mold, which is then filled with soil to create a cylindrical specimen of a specific diameter and length. After compaction, the split mould is disassembled to reveal the prepared sample, which is then transferred into the triaxial cell for testing.
Types of split moulds
- Two-part split mould: These are the most common type and consist of two halves that are assembled around the soil sample.
- Three-part split mould: These are used for more precise trimming of specimens, especially for undisturbed soil samples,
- Vacuum split mould: These are specifically designed for granular soils and use a vacuum to hold the membrane in place during compaction.











