What Are the UHPC Casting Methods? A Complete Analysis of Qinglong's UHPC Casting Process

The casting method for UHPC needs to be selected based on the shape, dimensions, and reinforcement of the components. Qinglong UHPC has developed multiple casting processes to meet different project requirements.

In terms of casting methods, common processes include pumped casting, self-leveling casting, and compression molding. In a large project in Shenzhen, for thin-walled complex components, pumped casting was adopted with pressure controlled at 2-3MPa and flow rate at 0.5m/s to ensure dense filling. For flat components, the self-leveling process was used, achieving self-compaction by controlling the flowability (700-800mm). In particular, for precast component production, compression molding was applied with pressure at 0.5-1.0MPa to ensure dimensional accuracy.

Pumped Casting Process

Suitable for large on-site casting projects, with pump pressure of 2-3MPa. Pumping speed must be controlled to prevent segregation. Suitable for vertical structure casting.

Self-Leveling Casting Process

Achieves self-compaction through high flowability, with flowability controlled at 700-800mm. Suitable for slab structures, with high surface flatness.

Compression Molding Process

Uses pressure molding for good compactness. Suitable for precast component production with precise dimensions. Pressure is controlled at 0.5-1.0MPa.

Spraying Construction Process

Uses the wet spray method, suitable for complex curved surface construction. Sprayed in layers, with each layer no thicker than 50mm. Requires specialized equipment.

Selecting the appropriate casting method requires professional experience. Qinglong UHPC provides technical guidance to ensure construction quality.