Aggregate Impact Value Testing Machine
(As per IS : 2386 – IV)
| Introduction | The aggregate impact value of coarse aggregate provides a relative measure of the resistance of an aggregate to sudden shock or impact. The oven dried and accurately weighed aggregates are subjected to a total of 15 blows of specified weight and fall and percentage of fines formed in terms of the total weight of the sample is expressed as the aggregate impact value. | |
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| General Description & Specification: | Consists of base weighing between 20-30 kg with a lower surface of not less than 30cm and support columns to form a rigid frame work around the quick release trigger mechanism to ensure an effective free fall of the hammer during test. The free fall can be adjusted through 380 + 5.0mm. The hammer is provided with a locking arrangement. A metal tup (hammer) weighing 13.5 to 14.0 kg, the lower end of in cylinderical shape, 100mm in diameter and 5cm long with a 2mm chamfer at the lower edge and case hardened. Complete with a cylindrical cup, 102mm dia x 50mm depth, one measure 75mm dia x 50mm deep and a tamping rod of circular cross section 10mm in diameter and 230mm long, rounded at one end. | |
| Optional Accessories: | The following accessories are not part of the standard supply and are supplied at an extra cost. | |
| Test Sieve 10mm, 12.5mm and 2.36mm opening. | ||
| Laboratory Oven. | ||
| Automatic Blow Counter. | ||
| Electronic Balance 500gm x 100 mg / Two Pan Balance. | ||