
COOPER Indentation Testing Machine
The Indentation Testing Machine CRT-IND for determining the resistance to penetration of road and mastic asphalt by loading a cylindrical pin and measuring the indentation in a sample over a given time. The CRT-IND comprises of a frame incorporating a stainless steel water bath with drain facility, method of applying the 500 Newton load and means of recording the test results.* Immersion heater is not included but can be offered as additional equipment. The apparatus conforms to the requirements of EN 12697-20.The maximum nominal size of the aggregates should be less or equal to 16 mm. It comes with optional auto data logging software which saves test data files, shows a graphical representation of the test in real time, reduces operator involvement and thus eliminates chances of error.
Key Use
- Determines the depth of indentation.
- To test the behavior of mastic asphalt, rolled and other such asphalts
Software
- CRT-INSOFT, A Cooper Technology designed and developed software package that allows for the automatic capture to PC of test data from the indentation test at the two required test temperatures* and over the four time durations. This software shows a graphical representation of the test in real time, storing the data in text files that can subsequently be opened in Excel.
Features
Technical Specification
Specification :
Preliminary Force | : | (25 ± 1) N |
Total Test Force | : | (525 ± 1) N |
100 mm2 Indentor Pin Diameter mm | : | (11.3 ± 0.1) |
500 mm2 Indentor Pin Diameter mm | : | (25.2 ± 0.1) |
Indentor Pin length | : | &ge20 mm |
Indentor Pin Thread Length | : | 8 mm (approx.) |
Deection of Apparatus Upon | : | <0.01 |
Application of Force mm |   |   |
Base Plate Thickness mm | : | >20 |
Water Tank Capacity | : | 25 litres |
Water Temperature Range | : | Ambient or 5 °C (whichever is higher) to 95 °C |
Water Temperature Stability | : | ± 0.5 °C |
Digital Indicator Resolution mm | : | 0.01 |
Digital Indicator Communications | : | Digimatic via USB 2.0 |
Protocol |   |   |
Weight Kg | : | 75 (approx.) |
Dimensions mm (W x D x H) | : | 500 x 800 x 1000 |
Electrical Supply | : | 240 VAC, 1&phi, 50/60 Hz, 4.5 A, 1 kW |
- Heater element to comply with both temperatures requested by EN standard                  
- Stainless steel                
- Temperature controlled water bath with drain facility                 
- Digital indicator with digital communications.                  
- CE Marked and Made in United Kingdom