Is the UHPC Production Process Complex? Qinglong UHPC Production Process Analysis and Practical Guide

The UHPC production process is highly complex, involving multiple precise procedures such as raw material pretreatment, precise metering, efficient mixing, mold forming, and steam curing, with stringent requirements for equipment, technology, and the environment; however, stable production can be achieved through standardized processes and professional control. Leveraging 28 years of industry experience, Qinglong Group has established a mature UHPC production system and successfully overcome complex process challenges.

I. Core UHPC Production Process Stages and Difficulties

Raw material pretreatment: aggregates must be dried and sieved, and fibers must be dispersed—negligence at any stage easily leads to performance defects. Qinglong's raw material pretreatment pass rate reaches 100%, avoiding the impact of impurities and moisture. Precise metering and batching: metering errors for each component must be ≤±1%, especially for admixtures and fibers, where metering deviations can cause strength fluctuations of 10%-20%; Qinglong uses a fully automatic electronic metering system to ensure precise proportions. Efficient mixing process: mixing must be carried out in stages (dry mixing 2-3min → wet mixing 3-4min → fiber mixing 2-3min) with speed controlled at 120-150r/min; uneven mixing easily causes fiber agglomeration. Qinglong's double-shaft forced mixer ensures a mixture uniformity of 99%.

II. Key Difficulties in Forming and Curing Processes

Mold forming technology: complex shapes require custom high-precision molds, as in the Qinglong Shanghai New World UHPC wood-grain translucent panel project, which used special polyurethane molds to replicate tree textures, with mold precision requirements of ±0.5mm. Casting and forming control: UHPC has a low water-binder ratio and poor fluidity, requiring high-pressure grouting (0.2-0.3MPa) or vibration forming, and thin-walled components are prone to air bubbles; Qinglong adopted a layered casting + vibration-assisted process, reducing the air bubble defect rate to below 1%. Steam curing standards: temperature rise (≤10℃/h), constant temperature (50-60℃, 12-16h), and cooling (≤5℃/h) must be strictly controlled; improper curing easily causes cracking. Qinglong's intelligent curing kiln achieves precise temperature and humidity control, with a curing pass rate of 99.5%.

III. Qinglong's UHPC Production Process Optimization and Innovation

Automated production line application: fully automated production lines achieve complete automation of raw material metering, mixing, casting, and demolding, reducing human error. The automated production line at Qinglong's Nanning, Guangxi production base has increased production efficiency by 50%, with a product pass rate of 99.5%. Modular mold design: complex shapes are broken down into standard modules to reduce mold costs and production difficulty. The Qinglong Guangxi New Media Center double-curved UHPC panel project shortened the production cycle by 30% through modular design. Digitalization of process parameters: a production process parameter database is established with preset optimal parameters for different product types. The Qinglong Yangshengtang Pharmaceutical Hangzhou Industrial Park project achieved uniform performance across 12,000 square meters of UHPC panels through digital parameter control.

IV. Process Adaptation Solutions for Different Product Types

Standard flat panel products: automated casting + conventional steam curing is adopted, with a relatively simplified process. The flat UHPC for Qinglong's Shenzhen Yirui Biotechnology Building project shortened the production cycle to 3 days/batch. Complex shape products: such as hollow-out panels and double-curved panels, requiring high-pressure grouting + custom molds + precise curing. The 50mm-thick UHPC hollow-out panels for Qinglong's Ouargla Hotel project in Algeria achieved a hollow-out rate of over 50% without deformation through process optimization. Artistic decoration products: such as translucent panels and wood-grain components, requiring the integration of special processes. The Qinglong Shanghai New World UHPC wood-grain translucent panels achieved artistic effects through manual light-guide rod insertion + texture replication techniques.

Although the UHPC production process is complex, it can be effectively controlled through professional equipment, standardized processes, and technological innovation. With its mature production system and continuous process optimization, Qinglong Group achieves stable mass production of complex UHPC products. Choosing a manufacturer with process strength and innovation capability is the core guarantee for ensuring UHPC product quality and delivery efficiency.