ASTM C779
Full Name
ASTM C779 – Standard Test Method for Abrasion Resistance of Horizontal Concrete Surfaces
Scope
ASTM C779 outlines three procedures to assess the relative abrasion resistance of horizontal concrete surfaces. These procedures differ in the type and degree of abrasive force they apply. The standard aims to determine variations in concrete surface properties caused by factors like mixture proportions, finishing techniques, and surface treatments.
Summary of the three procedures:
- Procedure A – steel-ball abrasion test: this procedure uses steel balls rolling in a circular path over the concrete surface to simulate abrasion. It’s suitable for evaluating concrete surfaces subjected to heavy foot traffic or rolling loads.
- Procedure B – rotating cutter method: this procedure involves a rotating cutter head with abrasive particles to create a circular wear path on the concrete surface. It’s helpful in assessing surfaces exposed to abrasion from rotating equipment or vehicles.
- Procedure C – sandblasting test: this procedure uses a sandblasting nozzle to direct a stream of abrasive particles at the concrete surface, simulating wind-driven sand or other abrasive materials. It’s useful for evaluating surfaces exposed to harsh weather conditions.
By using ASTM C779, engineers and researchers can compare the abrasion resistance of different concrete surfaces and select the most suitable materials and treatments for specific applications.
ASTM C779 Accredited Laboratory
Applied Testing & Geosciences, LLC is accredited for performing tests using the ASTM C779 standard.
Contact us for more information.
Resources
Keywords
abrasion resistance; horizontal concrete surfaces; steel-ball abrasion test; rotating cutter method; sandblasting test; wear; abrasion; surface treatment; concrete