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Aggregate Abrasion Machine

This product has been discontinued for sale!

SKU: CRT-AAM Category:

The Cooper Aggregate Abrasion machine determines the AAV by testing the measure of the resistance of aggregate to surface wear by abrasion

Inadequate abrasion resistance of road surfacing aggregates means an early loss of the texture depth required to maintain high speed skidding resistance. The Cooper Aggregate Abrasion machine determines the Aggregate Abrasion Value by testing the measure of the resistance of aggregate to surface wear by abrasion.
Two specimens are pressed against the surface of a steel disc rotating in a horizontal plane, with a force of 0.365 Newton’s per sq. centimetre. Sand, fed by hoppers, is used as an abrasive. After 500 disc revolutions the amount of material abraded is measured by calculation of the weight loss of the aggregate. The percentage loss in mass of chippings is known as the ‘Aggregate Abrasion Value’ (AAV), and ranges from about 1 for hard flints to over 16 for aggregates normally considered too soft for use in road surfacing.

Standards

  • EN 1097-8 : 2009
  • BS 812 : Partie 113 : 1990

Key Features


  • Heavy duty mainframe on adjustable anti vibration pads
  • Steel lap wheel 610 mm diameter
  • Precision machined steel shaft and sealed bearings
  • Inverter drive to 3 phase motor for precise speed control
  • Totally enclosed, grease filled gear box
  • Scraper blades for sand removal
  • Predetermined revolution counter
  • 24 V DC control circuits for safety
  • Interlocked cabinet lid for safety
  • Sand Scoop to collect spendrift
  • CE approved


Key Uses


  • To determine the Aggregate Abrasion Value

Specifications

Technical specifications are subject to change without notice.


Dimensions mm (W x D x H) 800 x 700 x 1100
Volume (Packed) cubic metres 0.79
Palletised Dimensions mm (WxDxH) 1200 x 800 x 1280
Weight Kg 170
Electrical Supply 230v single phase 50Hz


Calibration & Maintenance

Calibration, Annual Service and Maintenance Contracts are available for this device.
Please enquire for further details. Note: This device should be checked and calibrated annually.

Consumables

Consumables are not included in the price of main device (unless stated otherwise) and may be purchased separately if required.


  • CRT-AAM-AGG Leighton Buzzard Sand (25Kg bags)