FRP Grating Anti-slip Properties ASTM C1028 Standards
ASTM C1028 is another important standard used to evaluate the slip resistance of flooring materials, including FRP (Fiber Reinforced Plastic) grating. Unlike DIN 51130, which focuses on inclined plane testing with lubricants, ASTM C1028 measures the static coefficient of friction (SCOF) of surfaces under dry conditions. This standard is widely used in the United States and other regions to assess slip resistance.
Key Points of ASTM C1028:
1.Testing Method:
-ASTM C1028 measures the static coefficient of friction (SCOF) using a horizontal dynamometer pull meter.
-A test foot (typically covered with a standard material like Neolite) is dragged across the surface of the FRP grating.
-The force required to initiate movement is measured, and the SCOF is calculated as the ratio of the pulling force to the weight of the test foot.
2.Slip Resistance Criteria:
-A higher SCOF value indicates better slip resistance.
-Generally, a SCOF of 0.5 or higher is considered slip-resistant and safe for walking surfaces under dry conditions.
-SCOF values below 0.5 may indicate a higher risk of slipping.
3.Application:
-ASTM C1028 is often used to evaluate FRP grating in environments where dry conditions are prevalent, such as indoor walkways, platforms, and stair treads.
-It is particularly useful for comparing the slip resistance of different flooring materials.
4.Limitations:
-ASTM C1028 does not account for wet or contaminated conditions, which are critical in many industrial or outdoor applications.
-For environments with oils, water, or other contaminants, additional testing (e.g., DIN 51130 or other wet-condition standards) may be required.
Comparison with DIN 51130:
DIN 51130: Focuses on slip resistance under lubricated conditions (e.g., oil or grease) and uses an inclined plane test. It provides an “R” rating (R9 to R13) based on the angle at which slipping occurs.
ASTM C1028: Measures static coefficient of friction (SCOF) under dry conditions and provides a numerical value to assess slip resistance.
Importance of ASTM C1028 for FRP Grating:
-Compliance with ASTM C1028 ensures that FRP grating provides adequate slip resistance in dry environments, reducing the risk of accidents.
-It is often specified for applications where dry conditions are the primary concern, such as indoor industrial facilities, commercial spaces, or pedestrian walkways.
Selecting the Right Standard:
-If your application involves dry conditions, ASTM C1028 is a suitable standard for evaluating slip resistance.
-For environments with oils, greases, or other contaminants, DIN 51130 or similar standards may be more appropriate.
-When specifying FRP grating, ensure it meets the relevant anti-slip standards (ASTM C1028, DIN 51130, or others) based on the specific environmental conditions and safety requirements of your application.
Surface Type of FRP Gratings:
–Sand Grit FRP Grating : The surface is covered with a layer of quartz sand, the best anti-slip performance, suitable for wet or greasy environment.
–Concave FRP Grating: The surface is fluted structure, providing medium anti-slip performance, suitable for general industrial environment.
–Smooth FRP Grating: smooth surface, poor anti-slip performance, only suitable for dry environment or special purposes.