Achieving Gradient Effects in Colored UHPC Shapes: Technical Approaches and Application Cases

The gradient effect of colored UHPC shapes brings richer aesthetic expression to buildings, making it a popular choice in modern architectural design. Qinglong Group, with 28 years of experience in UHPC/GRC/GRG/GRP color R&D, has achieved precise rendering of gradient effects through technological innovation.

#Material Formulation Optimization: The Foundation for Gradient Effects Material formulation is the core foundation for achieving gradient effects in colored UHPC shapes. Qinglong Group uses highly weather-resistant mineral pigments with fine particle size and good dispersibility, ensuring uniform color distribution and natural gradient transitions; by adjusting pigment ratios, color concentration in different areas is precisely controlled, achieving smooth transitions from light to dark or from one color to another; an appropriate amount of dispersant is added to the UHPC material to promote uniform pigment dispersion and avoid color patches or bands; the ratio of cementitious materials to aggregates is optimized to ensure uniform material texture, providing a good carrier for color gradients. The colored UHPC hollow carved panels of the Nanning Liyuan Hotel achieved a gradient effect from light red to deep red through pigment ratio optimization, with natural and smooth transitions.

#Mold Zoning Design: Precise Control of Gradient Effects Mold zoning design is a key means of achieving gradient effects. Based on the gradient design plan, Qinglong Group divides the mold into multiple color zones, with each zone boundary set as a gradient transition band no less than 50mm wide to avoid abrupt color changes; pigment placement positions and thickness are preset within each zone of the mold, precisely controlling pigment dosage in different areas through markings on the mold; for complex three-dimensional gradient shapes, modular molds are used, with each module corresponding to one color concentration, forming an overall gradient effect after assembly. For the GRP (same-process extension) gradient shape of the Shanghai Pop Mart Nanjing East Road project, Qinglong achieved multi-color gradients through mold zoning design, with natural color transitions and outstanding aesthetic effects.

#Production Process Implementation: The Core of Realizing Gradient Effects Precise control of production processes allows gradient effects to be perfectly realized. Qinglong Group uses multiple processes to achieve gradient effects: for planar gradient shapes, the "layered material placement + vibration blending" process is adopted—colored UHPC materials of different concentrations are first laid in different areas of the mold, then moderate vibration allows the materials to blend naturally in the transition band, forming the gradient; for three-dimensional gradient shapes, the "segment-by-segment casting + color overlay" process is adopted—materials of different colors are cast in design sequence, with casting speed and time controlled to ensure natural color overlay transitions; steam curing is used, with curing temperature and time controlled to ensure color stability and prevent gradient effects from changing due to improper curing. The UHPC gradient decorative panels of the Meixi Lake Boston MIZU Salon achieved a natural gradient from white to gray through the layered material placement + vibration blending process, with no visible splicing marks on the surface.

#Quality Control and Effect Optimization: Guarantee of Long-Term Stability Quality control and long-term stability of gradient effects are key to project quality. Qinglong Group conducts rigorous testing of the gradient effects of colored UHPC shapes, using color difference meters to detect color differences between areas to ensure compliance with design requirements; color consistency testing is performed on mass-produced components to ensure uniform gradient effects across every component; UV resistance and anti-aging tests ensure long-term stability of gradient colors, with a 10-year fading rate of no more than 3%; gradient transition band width and color concentration are adjusted according to actual project needs to optimize gradient effects. The colored UHPC gradient components of Hainan Changying Global 100 Fantasy Park, through quality control and effect optimization, not only meet design requirements for gradient effects but also maintain stable colors during long-term use in high-humidity, high-salinity environments.

The gradient effect of colored UHPC shapes is achieved through the combined effect of material formulation optimization, mold zoning design, production process control, and quality testing. With 28 years of color R&D and production experience, Qinglong Group precisely controls every step, making gradient effects both beautiful and durable. Only by choosing a professional UHPC manufacturer can you obtain ideal colored gradient shapes and enhance the aesthetic value of your building.