This standard test determines the relative resistance of concrete surfaces by measuring the abrasion loss of a specimen exposed to an abrasive charge. In addition to concrete pavements, industrial floors, railway platforms, dockyards, and walkways, this test method measures the abrasion caused by physical impacts.
Workflow of the TestThe concrete cubes impinge with an abrasive charge. The concrete abrasion loss refers to the loss of mass of the cubes that occurs as the concrete surface of the cubes abrades.
Apparatus for the Test
- Scale.
- Conical Galvanized Iron Hopper.
- Pneumatic Sand Blasting Cabinet.
During operation, there is a pressure of 0.14 N/mm2 for the abrasive charge. By using air pressure and sand to rub concrete surfaces, you can create an abrasive charge. Each impingement shall require 4000 grams of charge. An abrasion loss defines as the mass lost due to two impressions on the same face of a concrete cube.
Test Specimen?s Preparation
It's necessary to oven-dry concrete cube specimens measuring 10 cm cubes for 24 hours at 50?C after they have been cured for 28 days. After emery paper has rubbed over the specimen's surface, the aggregate grains should expose as well as cement laitance.
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Published By
Global Associates
www.constructioncost.co
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