In-situ testing techniques

In-situ testing techniques are methods used to assess the properties of soil or materials directly at a construction site, without removing samples for lab analysis. These tests provide immediate information about factors like strength, density, and moisture content, which are critical for safe and effective construction. Examples include the Standard Penetration Test (SPT), which measures soil resistance with a hammer, and the Cone Penetration Test (CPT), where a cone is pushed into the ground to assess soil type and stability. These tests help engineers design foundations and structures suitable for the site’s actual conditions.