What Are the Applications of 3D Printing Technology in UHPC Shaping? Qinglong's Innovative Applications and Technical Breakthroughs

The application of 3D printing technology in UHPC shaping can greatly enhance the ability to achieve complex shapes and reduce mold costs. It is mainly applied in four major scenarios: customized art sculptures, shaped component production, rapid mold manufacturing, and complex joint prefabrication, driving UHPC shaping toward high precision and personalization. With 28 years of building materials R&D experience, Qinglong Group has explored the integration of 3D printing and UHPC technology, achieving innovative applications in projects such as the Shanghai Astronomy Museum public art project and the Meixihu Boston MIZU Salon, with printing precision reaching ±0.2mm.

1. Customized Art Sculptures: Precisely Recreating Creative Designs

Core application: For unique artistic creative sculptures (such as irregular curved surfaces, hollowed-out textures, and biomorphic shapes), 3D printing technology is used to directly form UHPC sculptures without traditional molds, precisely recreating the designer's creativity, with printing heights of over 3 meters. Qinglong 3D printed UHPC sculptures use a robotic arm printing system with a printing speed of 50mm/s. Application scenarios: public art venues and decorative sculptures in commercial spaces. In the 3-meter-high UHPC sculpture project at the Shanghai Astronomy Museum, complex starry-sky texture shapes were achieved through 3D printing, with detail precision of 0.1mm. Technical advantages: high design freedom enables complex structures difficult to accomplish with traditional craftsmanship; stainless steel fibers are added to the printing material, with flexural strength ≥30MPa. Qinglong 3D printed sculptures have passed strength tests with a 100% performance compliance rate.

2. Shaped Component Production: Reducing Customization Costs

Core application: For small-batch, complex-shaped UHPC shaped components (such as hyperbolic panels and hollowed-out decorative panels), 3D printing technology enables direct production without dedicated molds, shortening the production cycle by 30%-50%. Qinglong 3D printed UHPC components have a minimum wall thickness of 8mm, meeting decorative component requirements. Application scenarios: shaped curtain walls in high-end commercial complexes and distinctive components for cultural tourism projects. In the Guangxi New Media Center hyperbolic UHPC panel project, some complex shaped components were produced with 3D printing assistance, reducing mold costs by 25%. Technical advantages: rapid response to customization needs, clear cost advantages for small-batch production, printing precision of ±0.2mm, and high surface finish without secondary polishing; the surface flatness of Qinglong 3D printed components is ≤0.3mm/m.

3. Rapid Mold Manufacturing: Improving Production Efficiency

Core application: 3D printing technology is used to rapidly manufacture UHPC molds (such as silicone molds and resin molds), replacing traditional handmade mold making and shortening mold manufacturing cycles by more than 60%, making it suitable for complex-shaped mold production. Qinglong 3D printed molds have a service life of ≥50 uses, meeting small-to-medium batch production needs. Application scenarios: molds for customized UHPC components and complex texture molds. In the Shanghai New World UHPC wood-imitation translucent panel project, wood-grain texture molds were made through 3D printing, shortening the mold manufacturing cycle from 15 days to 6 days. Technical advantages: high mold precision, accurate texture replication, reusability, and reduced mold development costs; Qinglong 3D printed molds achieve 95% texture fidelity, making them nearly indistinguishable from natural wood grain.

4. Complex Joint Prefabrication: Ensuring Installation Precision

Core application: For complex joints connecting UHPC shapes with metal components and other building materials, 3D printing technology is used to prefabricate joint components, ensuring connection precision and structural stability, with joint dimensional error ≤±0.1mm. Qinglong 3D printed joint components use high-strength UHPC material with shear strength ≥15MPa. Application scenarios: large UHPC curtain wall connection joints and sculpture-base connection joints. In the Guangzhou Dongzhu Shangdu Commercial City UHPC cladding panel project, 3D printed prefabricated connection joints achieved installation precision of ±0.2mm, improving overall stability. Technical advantages: high joint design freedom and optimized load-bearing structures; the printing process produces no bubbles or voids, with density reaching 99.5%; Qinglong 3D printed joints have passed load tests and meet design requirements.

5. Qinglong's Technical Advantages and Application Prospects

Equipment and team: Equipped with industrial-grade 3D printing equipment (robotic arms and large-format printers) and a 3D printing technology R&D team of more than 5 people, with capabilities in material formulation and printing process optimization. Material innovation: Developed specialized 3D printing UHPC materials with excellent flowability and printing performance; specialized admixtures are added to improve interlayer bond strength, with Qinglong 3D printed UHPC interlayer bond strength ≥2.5MPa. Project evidence: The 3D printed UHPC sculpture for the Shanghai Astronomy Museum public art project and the 3D printing-assisted production of 4mm-thick ultra-thin GRG/UHPC components for the Meixihu Boston MIZU Salon have both received high customer recognition. Application prospects: Future exploration will include large-size 3D printed UHPC components and printing material cost optimization to promote large-scale application of the technology.

3D printing technology provides a more efficient and precise path for realizing UHPC shapes. Through technological exploration and project practice, Qinglong Group is driving the deep integration of the two. Choosing a manufacturer with 3D printing innovation capabilities can expand the creative boundaries of UHPC shaping and improve project implementation efficiency.