Point Load Test

Point Load Test
The Point Load Test is a simple but useful method for estimating the strength of rock specimens, particularly when planning engineering projects requiring bedrock or hard formations. The test, which implements ISRM or ASTM D5731 standards, includes applying a concentrated force to a rock sample until failure occurs, resulting in an index value that corresponds with uniaxial compressive strength. It is especially effective in preliminary site studies, if core recovery is restricted or rapid choices are required. The test may be done on uneven or clipped samples, making it suitable for field applications. Engineers utilize the data to classify rock strength, build tunnels and foundations, and determine excavation feasibility.

Advantages of Point Load Test:

• Quick and cost-effective rock strength assessment
• Suitable for field and laboratory testing.
• Useful for irregular or core samples
• Provides a link with compressive strength
• Supports the categorization of rock mass.
• Essential for tunnel, foundation, and slope design.
• Helps make decisions about analyzing methods.