From September 18 to 20, 2026, China International Concrete Expo (CICE) hosted by China Concrete & Cement-based Products Association (CCPA),was hosted at the prestigious Canton Fair Complex in Guangzhou, the heart of the Guangdong-Hong Kong-Macao Greater Bay Area in China. With over 30,000 square meters of indoor exhibition area, more than 500 exhibitors, and over 40,000 professional visitors, CICE has grown into one of the most influential annual gatherings for the global concrete and cement-based products industry. Our UHPC planetary mixer successfully received warmly attentions from visitors.
There are some useful information about reasons of why use UHPC mixers.
The core requirements of UHPC (Ultra High Performance Concrete) for mixers are focused on four aspects: high shear force, seamless mixing, wear resistance, and precise control, which ordinary concrete mixers are difficult to meet.
✅ Mixing principle and shear capacity
The mainstream choice is the planetary mixer, which forms a three-dimensional shear flow field through the composite motion of revolution and rotation. It can effectively disperse ultrafine powder aggregates such as silica fume and quartz powder, and evenly disperse steel fibers to avoid agglomeration.
✅ Wear resistant and anti adhesive configuration
UHPC contains a large amount of siliceous high hardness aggregate, with strong wear resistance. The lining plate needs to be made of high wear-resistant alloy material, and it is recommended to thicken the wear-resistant design of the blades; The inner wall of the cylinder can be coated with anti adhesive layer or special lining plate to reduce the residue of high viscosity materials hanging on the wall, ensuring the accuracy of the ratio and the cleanliness of the discharge.
✅ Measurement and Control System
UHPC formula requires high precision, and the mixer needs to be able to be linked with a high-precision batching system (with measurement error controlled within ± 0.5%), supporting step-by-step feeding timing control. The PLC system with formula storage function can save multiple sets of production parameters, facilitate product switching, and support real-time monitoring of torque and temperature.
✅ Segmented mixing process
It is not enough to rely solely on increasing the speed. The speed and duration should be dynamically adjusted according to the three-stage process of "dry mixing → wet mixing → fiber dispersion", with a single batch lasting about 4-8 minutes, to avoid excessive mixing leading to temperature rise and loss of workability of the slurry.
Selection reminder: The mixing cycle is usually longer than that of ordinary concrete, and it is recommended to reserve more than 15% of the capacity for selection to avoid overloading of high viscosity materials. Suggest requesting suppliers to provide operational data and actual strength test results of similar projects for final judgment for selecting the UHPC mixer.
