Digital / Analog point load tester (Rock strength index)
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Digital / Analog point load tester (Rock strength index)
STANDARD: ASTM D5731
Product Description
Digital / Analog point load tester (Rock strength index)
STANDARD: ASTM D5731
Used to determine the strength values of a rock specimen both in the field and in the laboratory.It consists of a load frame for applying loads up to 55 KN, on which a manual hydraulic jack is mounted.
The instrument accepts core specimens up to 4” (101,6 mm) diameter which are loaded by two cone shaped points.
A graduated scale indicates the distance between the conical points.
The applied load is measured by a pres¬sure transducer with a digital display unit range 0-56kN, 65.000 divisions, 0,001 kN resolution, accuracy: ± 1%.
The strength index (IS) is got by the formula P : D2 where P is the strength and D the space between the two conical points.
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