Concrete Preparation & Compatibility Test
- Preprocess material: Prepare test concrete as required. Ensure aggregate size matches the nozzle diameter (to avoid clogging) and adjust slump/viscosity with superplasticizer or water for smooth extrusion.
- Hopper & feeding test: Load concrete into the hopper. Start the feed pump/screw conveyor to check for smooth material flow to the nozzle—no clogging or leaks.
- Nozzle extrusion test: Manually extrude a small amount of concrete. Adjust feed pressure or nozzle temperature (if applicable) to ensure uniform extrusion (no gaps or excess).