UCS or Point Load Testing for Design or Verification

UCS – The capacity of a material to withstand axially directed crushing forces. When the limit of comprehensive strength is reached, specimens fail and are crushed. The UCS itself is the maximum force that a specimen can withstand before failure occurs.

Point Load Test – Used to determine the Point Load Strength Index (Is(50)). This index provides a method for establishing rock strength classification. The point load test apparatus and test procedure provides economical testing of core or lump rock samples. In order to estimate uniaxial compressive strength, index-to-strength conversion factors are used.