The Aggregate Crushing Value (ACV) Test Set measures how resistant an aggregate is, when being crushed under a gradually applied compressive load. Each set consists of steel cylinder, plunger, base plate, cylindrical measure and tamping rod. For durability and reliability, all parts of the apparatus are galvanized steel or powder coated, heat treated and ground prior to manufacturing. For aggregates smaller than 10 mm, a 75 mm diameter cylinder and associated equipment is available.
The ratio of weight of fines formed to the weight of total sample in each test shall be expressed as a percentage, the result being recorded to the first decimal place.
Aggregate crushing value = (W2 x 100) / (W1-W)
W2 =Weight of fraction passing through the appropriate sieve
W1-W =Weight of surface dry sample.
The mean of two result to nearest whole number is the aggregate crushing value.
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