Coating Thickness Gauge

Direct Shear Machine

CBR is the ratio expressed in percentage of force per unit area required to penetrate a soil mass with a standard circular plunger of 50 mm diameter at the rate of 1.25 mm/min to that required for corresponding penetration in a standard material. The ratio is usually determined for penetration of 2.5 and 5 mm . When the ratio at 5 mm is consistently higher than that at 2.5 mm, the ratio at 5 mm is used.

Schmidt hammer also known as a Swiss hammer or a rebound hammer or concrete hammer test, is a device to measure the elastic properties or strength of concrete or rock, mainly surface hardness and penetration resistance. It was invented by Ernst Schmidt, a Swiss engineer.

The unconfined compression test is the most popular laboratory test used to determine the Unconfined Compressive Strength (UCS) of a rock specimen.

The pendulum instrument is a power pendulum impact type instrument, it is an instrument for measuring the friction coefficient of road surface, airport runway, marking paint.