Aggregate Impact Tester
Product Code : EL-ATLE-10467
Quick Answer: The Aggregate Impact Tester determines the Aggregate Impact Value (AIV), a relative measure of an aggregate\u2019s resistance to sudden shock or impact, per IS 2386 (Part IV) 9377 and BS 812:112. Manufactured from heavy duty plated steel for corrosion resistance, it uses a 13.75 ±0.25 kg hammer with a locking arrangement that falls freely along two vertical guides on a circular base through an adjustable height of 380 ±5 mm, with an automatic blow counter recording the number of strokes; it is supplied complete with a 75mm dia x 50mm high metal measure for specimen preparation and a 230mm long x 10mm diameter tamping rod.
The Aggregate Impact Tester is robustly designed to determine the aggregate impact value (AIV) of aggregates, which provides a relative measure of the resistance of an aggregate to sudden shock or impact. The counter fitted to the machine automatically records the number of blows delivered to the sample, and it is manufactured from heavy duty plated steel to resist corrosion. The instrument consists of a circular base with two vertical guides, and the hammer of weight 13.75 +/-0.25kg can be raised to fall freely down the vertical guides, with the height of fall adjustable through 380 +/- 5mm. A blow counter to count the number of strokes is fitted on top of the equipment, and the hammer is provided with a locking arrangement; the hammer falls freely to the base and is removable for employing. It is supplied complete with a metal measure 75mm dia x 50mm high (for specimen preparation) and a Tamping Rod 230mm long x 10mm diameter.
Standards: IS 2386 (PART IV) 9377 & BS 812:112
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Last Updated: September 2026
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