Aggregate Crushing Value Apparatus

Introduction

The aggregate crushing value provides a relative measure of the resistance of an aggregate to crushing under a gradually applied compressive load. The oven dried and accurately weighed aggregates are subjected to crushing test on compression testing machine and weight of the resultant fines passing the specified IS sieve to the total weight of the sample expressed a s a percentage is defined as Aggregate Crushing Value. The apparatus is available in three size 75mm dia for 1/8” to ¼” size aggregate, 150mm dia for 3/8” to ¾” aggregate (standard) and 300mm dia for 1” to 2” aggregate.

General Description & Specification :

Consists of Case hardened Mild steel cylindrical container of 150mm dia + 0.5mm x 130mm to 140mm high with base plate 200 to 230mm square x 6mm thick. A plunger of 148mm + 0.5mm dia x 100 to 115mm high. All parts directly coming in to contact with the specimen during the test are made of mild steel duly case hardened. Supplied complete with tamping rod, 16mm dia x 600mm long, one end rounded.

Optional Accessories :

The following accessories are not part of the standard supply and are supplied at an extra cost.

  • Cylinderical Metal measure 11.5cm dia x 18cm height with handle.
  • Electronic Balance 3 kg. X 1 gm
  • Compression Testing Machine Capacity : 500 kN
  • Test Sieve 2.36mm, 10mm, 12.5mm and 14m

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