Detailed Explanation of the Key Steps in the Production Process of UHPC Exterior Wall Decorative Lines

【Craftsmanship in Construction: An Analysis of the Six Core Manufacturing Processes of UHPC Exterior Wall Decorative Lines】

Architecture is frozen art, and UHPC (Ultra-High Performance Concrete) exterior wall decorative lines are the finishing touch that gives a building its soul. As an industry leader with 28 years of experience in detailed design, production, and manufacturing of UHPC/GRC/GRG/GRP materials, Qinglong Group has always embraced the attitude of "meticulous craftsmanship and relentless refinement," taking this craft, which integrates technology and aesthetics, to the highest level. This article systematically breaks down the key manufacturing processes of UHPC exterior wall decorative lines, revealing how concrete is brought to artistic life.

### I. Detailed Design: Precise Transformation from Drawings to Components

The birth of UHPC exterior wall decorative lines begins with precise detailed design. Backed by the technical strength of its provincial-level R&D center, Qinglong Group employs BIM technology and parametric design software (such as Rhino+Grasshopper) to transform architects' creative drawings into production-ready 3D models. At this stage, key considerations include the mechanical performance of the lines, installation joints, and coordination with the building as a whole, while mold structures are optimized based on 28 years of engineering experience to ensure the precision of complex shapes (such as double-curved surfaces and openwork reliefs). Taking the Nanjing East Road Century Plaza renovation project as an example, through parametric segmented design, the installation error of light-transmitting UHPC lines was successfully controlled within ±2mm.

### II. Raw Material Configuration: The Core Code Behind UHPC's High Performance

As a UHPC manufacturer, Qinglong knows deeply that raw materials are the cornerstone of product performance. Special cement with a strength grade of ≥120MPa, silica fume, ultra-fine quartz sand, and copper-plated steel fibers are strictly selected and dry-mixed in precise proportions. The steel fiber volume content is controlled at 2-3%, ensuring that the flexural strength of components exceeds 20MPa, while particle gradation optimization reduces porosity and enhances durability. This step must be completed in a fully enclosed automated production line to prevent external impurities from affecting material homogeneity.

### III. Mold Making: The Key Vehicle for Replicating Artistic Details

The mold is the "skin" through which UHPC lines take shape. Qinglong adopts a combined process of high-precision steel molds and elastic silicone molds. For the complex textures of European classical lines (such as Roman columns and cornices), full-scale molds are produced using 3D scanning technology, ensuring texture depth errors of ≤0.5mm. The mold surface is specially treated to form a hydrophobic layer, which guarantees the surface finish of components and facilitates demolding. For standard lines in mass production, modular mold design is adopted, increasing production efficiency by more than 30%.

### IV. Casting and Molding: Precision "Casting" in a Controlled Environment

The pouring of UHPC slurry must be carried out in a workshop with constant temperature and humidity (temperature 20±2℃, humidity ≥90%). A combined process of vacuum pouring and high-frequency vibration is used to remove air bubbles and ensure the slurry fully fills every corner of the mold. For large-span lines, built-in steel reinforcement skeletons enhance structural stability, while embedded RFID chips enable full life-cycle quality traceability. After pouring, components undergo 72 hours of steam curing in curing chambers, allowing their strength to quickly reach 90% of the design value.

### V. Surface Treatment: Endowing UHPC Lines with a Premium Texture

Qinglong holds multiple patented technologies in UHPC surface treatment. According to design requirements, various effects can be achieved, including faux stone, faux metal, and fair-faced concrete: sandblasting creates natural textures, fluorocarbon coatings improve weather resistance, or light-transmitting aggregates are used to produce artistic translucent components. Taking the Dongguan Women and Children's Activity Center project as an example, a special coloring process gave UHPC lines a warm, jade-like texture, winning the Silver Award at the first GRC Building Engineering Innovation Awards.

### VI. Installation and Maintenance: The Last Mile of Full-Chain Service

As a UHPC manufacturer integrating construction and installation, Qinglong uses 3D laser scanning positioning technology together with customized stainless steel connectors to ensure the precision and safety of line installation. After installation, a 5-year after-sales maintenance service is provided, including regular inspection of anchoring systems, surface cleaning, and repairs. This full-chain service model vividly embodies Qinglong's mission of "Creating Aesthetic Architecture."

From design to installation, every step in the process of UHPC exterior wall decorative lines embodies Qinglong's 28 years of technical expertise. As a National High-Tech Enterprise and a participant in setting UHPC/GRC industry standards, Qinglong has always upheld the values of "honesty, perseverance, trust, and collaboration," providing real estate developers and architects with full-process solutions from concept to implementation. Looking ahead, Qinglong will continue to focus on innovation in UHPC/GRC/GRG/GRP materials, striving to become a world-class leading enterprise in architectural decorative material manufacturing, allowing more buildings to radiate unique aesthetic charm.