Aggregate impact value apparatus

This machine is used to deter-mine the aggregate impact value(AIV) which provides a relative measure of the resistance of an aggregate to sudden shock or impact. The machine is robustly designed and made from corrosion- resistant steel. It is fitted with a counter to check the number of blows delivered to the sample and comes complete with two cylindrical measures (BS and NF) and a tamping rod.

STANDARD

• BS 812
• NF P18-574

TECHNICAL PARAMETERS

Impact hammer weight: 13.75kg±0.05kg
Height of the fall hammer: 380±5mm
Impact cup: 102×50mm
Test sieve: 15.0mm,10.0mm,2.50mm
Circular section metal straight stick: 10×230mm,one part is semicircle
Gauge metal cylinder: cylinder75±1×50±1mm