Is the UHPC Production Process Complex? An In-Depth Analysis of Qinglong's UHPC Production Technology

The UHPC production process is indeed far more complex than that of ordinary concrete, with a level of precision comparable to precision manufacturing. As an industry leader, Qinglong UHPC has, through 28 years of technical accumulation, optimized its production process into four major stages—batching, mixing, molding, and curing—with a total of 136 quality control points, ensuring a high degree of consistency in product performance.

In the Shenzhen Yirui Biotechnology Building project, the Qinglong UHPC production line demonstrated an advanced level of craftsmanship: the German BHS twin-shaft mixer achieves 0.1% batching accuracy; the robotic material distribution system ensures three-dimensional uniform fiber distribution; and the intelligent curing kiln maintains temperature and humidity control within ±1℃. This precision control keeps the product strength coefficient of variation within 5%. Even more noteworthy, the online monitoring system equipped on the production line monitors 368 process parameters in real time, ensuring that any deviation is detected and corrected within 10 minutes.

Precision Control of the Batching Process

Dry material mixing time ≥120s, and mixing after water addition ≥180s; fibers are added in three stages to ensure uniform dispersion; temperature sensors monitor the material temperature in real time, keeping it at 20±2℃. This precision control is the foundation of performance consistency.

Technological Innovation in the Mixing Process

A planetary mixer is used with the linear speed controlled at 3m/s; vacuum mixing technology removes air bubbles, keeping air content ≤1%; this process ensures material compactness ≥98%.

Breakthrough in the Molding Process

Combined vibration + pressure molding is adopted, with a pressure of 0.5-1.0MPa; the CNC vibration table features adjustable frequency to ensure compaction; this process reduces product porosity to below 2%.

Scientific Optimization of the Curing Regime

Ambient-temperature curing for 24h + temperature-rising curing (2℃/h) + constant-temperature curing (90℃×48h) + cooling curing (1.5℃/h); this regime optimizes strength development.

UHPC production requires the support of a sound quality system. Through 28 years of accumulated experience, Qinglong has developed a mature process control system to provide customers with high-quality products of stable performance.