Is the UHPC Production Process Complex? An Analysis and Practical Guide to Qinglong's UHPC Production Process

The UHPC production process is highly complex, requiring multiple precise procedures such as raw material pretreatment, precise metering, efficient mixing, mold forming, and steam curing, with stringent requirements for equipment, technology, and environment. However, stable production can be achieved through standardized processes and professional control. Backed by 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 need to be dried and screened, and fibers need to be dispersed; negligence at any stage can easily lead to performance defects. Qinglong achieves a 100% pass rate for raw material pretreatment, preventing impurities and moisture from affecting quality. Precise metering and batching: The metering error of each component must be ≤±1%; especially for admixtures and fibers, metering deviation 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 for 2-3 min → wet mixing for 3-4 min → fiber mixing for 2-3 min) with the speed controlled at 120-150 r/min; uneven mixing easily causes fiber agglomeration. Qinglong's twin-shaft forced mixer ensures a mixture uniformity of 99%.

II. Key Difficulties in Forming and Curing Processes

Mold forming technology: Complex shapes require customized high-precision molds. For example, in Qinglong's Shanghai New World UHPC wood-effect translucent panel project, special polyurethane molds were used to replicate tree textures, with mold precision requirements reaching ±0.5mm. Pouring and forming control: UHPC has a low water-binder ratio and poor fluidity, requiring high-pressure grouting (0.2-0.3MPa) or vibration forming; thin-walled components are prone to air bubbles. Qinglong adopts layered pouring + vibration-assisted technology, reducing the air bubble defect rate to below 1%. Steam curing specifications: The heating rate (≤10℃/h), constant temperature (50-60℃, 12-16h), and cooling rate (≤5℃/h) must be strictly controlled; improper curing can easily lead to 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 have been built to automate raw material metering, mixing, pouring, and demolding throughout the process, 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. In Qinglong's Guangxi New Media Center double-curved UHPC panel project, modular design shortened the production cycle by 30%. Digitalization of process parameters: A production process parameter database has been established, with preset optimal parameters for different product types. In Qinglong's Yangshengtang Pharmaceutical Hangzhou Industrial Park project, digital parameter control achieved uniform performance across 12,000 square meters of UHPC panels.

IV. Process Adaptation Solutions for Different Product Types

Standard flat panel products: Automated pouring + conventional steam curing are used, with a relatively simplified process. In Qinglong's Shenzhen Yirui Biotechnology Building project, flat UHPC panels were produced with a cycle shortened to 3 days per batch. Complex shape products: Such as hollow-out panels and double-curved panels, requiring high-pressure grouting + custom molds + precise curing. Qinglong's 50mm-thick UHPC hollow-out panels for the Ouargla Hotel in Algeria achieved a hollow-out rate of over 50% without deformation through process optimization. Artistic decorative products: Such as translucent panels and wood-effect components, requiring the integration of special processes. Qinglong's Shanghai New World UHPC wood-effect translucent panels achieve artistic effects through manual light-guide rod insertion + texture replication processes.

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 has achieved stable mass production of complex UHPC products. Choosing a manufacturer with strong process capabilities and innovation is the core guarantee for ensuring UHPC product quality and delivery efficiency.