Facing the challenges of ultra-high-performance concrete mixing, UHPC intensive mixers, with their high shear and zero-dead-angle mixing technology, are becoming a groundbreaking solution.
In the engineering materials field, ultra-high-performance concrete (UHPC) is hailed as the "material of the future" for its exceptional strength, toughness, and durability. However, to fully realize its performance, traditional mixing equipment often struggles to overcome technical bottlenecks such as uneven fiber dispersion and material agglomeration.
In recent years, UHPC intensive mixers, with their unique high-shear operating principle, have gradually become a core technology for UHPC production, demonstrating their superior performance in numerous major national projects.
01 Industry Pain Points: Technical Barriers to UHPC Mixing
UHPC is composed of large amounts of powder materials, fine aggregate, and short steel fibers. It requires minimal liquid volume but is highly sensitive, requiring a wide variety of powder mixes, placing extremely high demands on the mixing process.
In actual production, the tendency of steel fibers to bend and agglomerate is a common problem in the industry. Uneven fiber distribution directly affects the toughness and compressive properties of UHPC, resulting in the product failing to achieve its designed strength.
Furthermore, composite materials such as fibers and large aggregates in UHPC are difficult to disperse, requiring equipment with high mixing power.
Traditional mixing equipment often suffers from problems such as inability to stir, high energy consumption, and uneven mixing when handling UHPC materials, making mass production difficult.
02 Technical Principle: Innovative Design of Planetary Mixing
Planetary mixers utilize a unique motion mode that combines revolution and rotation, achieving 360-degree mixing without dead angles.
In terms of its operating principle, the mixing arm rotates at high speed around its own axis—rotation—to exert strong shear force on the material, breaking up powder clumps. Simultaneously, it rotates around the central axis of the mixing drum—revolution—to cover the edges.
This combined motion mode provides the material with forced shear, tumbling, squeezing, and kneading forces during mixing, fully activating the properties of UHPC.
The AKW Intensive mixers feature dynamically optimized blade angles, generating ultra-high shear forces on the material, evenly enveloping each particle with moisture, significantly improving material uniformity.
03 Performance Advantages: A Balance of High Homogenization and Low Energy Consumption
Planetary high-shear mixers demonstrate remarkable core advantages in UHPC production.
Fiber dispersion uniformity is improved by 90%, completely eliminating agglomeration. Addressing the industry's pain points of steel fiber bending and clumping, the planetary mixing trajectory system acts like a "precision combing hand," maintaining fiber integrity during efficient dispersion and significantly reducing fiber damage.
Compared to conventional processes, the new mixing equipment increases mixing efficiency by over 30% and reduces energy efficiency by over 20%.