Proceq Rock Schmidt Hammer UK | NDT Instrument Rebound Hammer for Fresh Concrete, Asphalt, Mortar, Rock and Paper Compressive Strength Test, Screening, Roll Hardness, UCS, E-Modulus, Weathering, Dating, Testing, ASTM D 5873 and ISRM.

Proceq Rock Schmidt Hammer ASTM D 5873 and ISRM

The Proceq RockSchmidt is the world’s most advanced rebound hammer fully adapted specifically to the extremely varied rock testing applications.

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

Type N with standard impact energy ist most suited to field testing. Type L with low impact energy as specified by ASTM for testing cores.

Measurements:

Type N: Standard impact energy, 2.207 Nm. Recommended for field work. For core testing ISRM recommend that cores should be at least moderate strength (>80 MPa) and at least T2 size (≥ 84mm). Type L: Low impact energy, 0.735 Nm.

Recommended impact energy in the ASTM D 5873 standard for testing of cores. ISRM recommend for testing on cores of moderate strength and above of at least NX size (≥ 54mm)

Features:

Geomorphological applications which investigate the bulk hardness properties of a rock outcrop

Prediction of weathering grades

Correlation to Unconfined (or Uniaxial) Compressive Strength (UCS)

Correlation to Young’s Modulus

Prediction of penetration rates for tunnel boring machines and rotary drum cutters

Testing on cores and blocks

Applications:

Geology

Uniformity testing

In-situ strength estimation

Custom correlation to compressive strength

Glacier retreat

Boulder calibration

Uniaxial compressive strength determination

SONREB - combining Pundit and

RockSchmidt NDT of rock reference list

Standards:

ASTM D 5873 (Rock)