AGGREGATE ABRASION VALUE (AAV) DETERMINATION
STANDARDS: EN 1097-8 / Comparable to BS 812-113
The test gives a measure of the resistance of aggregates to surface
wear by abrasion.
Inadequate abrasion of road-surfacing aggregates means an early
loss of the texture depth required to maintain high-speed skidding
The machine consists of a heavy duty mainframe on adjustable feet,
steel lap wheel 615 mm diameter, that rotates in a horizontal plane
at 28/31 r.p.m., precision machined steel shaft and sealed bearings,
resilient mounted electric gearmotor, scraper blades for sand removal,
Supplied complete with two specimen moulds, two trays, weights,
Power supply: 230 V 1ph 50/60 Hz
Dimensions: 1130x710x1100 mm
Weight: 200 kg
A111-11 Graded silica sand. Pack of 25 kg.
V179-05 Soft hair brush 3 mm dia. BS 812
Two specimen moulds.