Rock Abrasiveness Apparatus (RAA-100)

The GCTS Rock Abrasiveness Apparatus (RAA-100) is used for measurement of rock abrasiveness under the standards specified by the Cerchar test. The test consists of measuring the wear flat on the standard steel indenter with 200 kg/mm2 hardness loaded with 70 N force, after it has scratched 10 mm distance on the rock surface.

The GCTS Rock Abrasiveness Apparatus (RAA-100) is used for measurement of rock abrasiveness under the standards specified by the Cerchar test. The test consists of measuring the wear flat on the standard steel indenter with 200 kg/mm2 hardness loaded with 70 N force, after it has scratched 10 mm distance on the rock surface. The indenter is examined under the microscope and the amount of wear is correlated to the Cerchar Abrasiveness Index (CAI).

RAA-100 features precision slide for smooth movement of the rock specimen over the required scratch distance. It also comes with graduated knob for accurate scratch distance control with 0.01 mm precision. The slide movement is controlled with precision threaded acme rod with 1 mm pitch (1 mm horizontal movement per knob revolution). Included in the RAA-100 package are one hundred (100) sharp steel indenters with 200 kg/mm2 hardness and 90° cone angle, rock holding vise and anodized aluminum and stainless steel construction loading frame.

 

Geotechnical Consulting & Test Systems (GCTS), USA

Geotechnical Consulting & Test Systems (GCTS), USA

Geotechnical Consulting and Testing Systems (GCTS) provides advanced testing solutions for Research in Geotechnical & Pavement materials. GCTS also helps in design of laboratory and in-situ testing apparatus and software ranging from modification and adaptation of existing apparatus to the purchase of new closed-loop computer-controlled systems. The company manufactures a full line of computer-controlled testing systems with either pneumatic or hydraulic loaders. Each system comes with a versatile software package which provides test control, data acquisition, data reduction, and graphing in one easy to learn Graphical User Interface.

 

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