Rock Schmidt RS8000

RockSchmidt - Rebound Hammer for Rock Testing

For many years Proceq's Original Schmidt hammers originally designed for non-destructive testing of concrete structures have been used for rock testing. With the release of RockSchmidt test hammers, Proceq presents the first rebound hammers adapted specifically to the extremely varied rock testing application.

The RockSchmidt incorporates statistical methods based on ASTM and ISRM recommendations and also provides the user with the freedom to define his own statistical process for determining a rebound number.

Two models are available. RockSchmidt Type N with standard impact energy is most suited to field testing and RockSchmidt Type L with a lower impact energy as specified by ASTM for testing cores.

Applications

• Geomorphological applications which investigate the bulk hardness properties of a rock outcrop
• Weathering grade determination according to ISRM guidelines
• Correlate directly to UCS or e-modulus
• Prediction of penetration rates for tunnel boring machines and rotary drum cutters
• Testing on cores and blocks

Features

The following features of the hammer make it ideal for rock testing applications:

Impact Angle Independence

• The rebound value is independent of the impact direction.

Optimised for Field Work

• Tighter sealing against dirt and dust intrusion for longer life.
• Significantly lighter and more ergonomic than the classic Schmidt hammer

Documentation and Report Creation

• Visual report generation using lists, bar charts and statistics
• Single and multiple series export in pdf or csv
• Logbook annotations for full traceability (geolocation, text, images, voice)
• Collaborate with colleagues using the Screening Eagle Workspace platform

Unconfined Compressive Strength

• ISRM recommends a correlation between UCS and the rebound value based on the formula UCS = aebR (where R is the rebound value).
• A correlation in this format may be defined within the RockSchmidt App

Weathering Grade

• Impacting on the same location twice can be used to correlate to weathering grade.
• The ISRM recommended method has been included in the device.