Discussion and Application Analysis of Key Technologies for Achieving High Openwork Rates in UHPC Shaping

**Key Technologies and Application Analysis for Achieving High Openness in UHPC Forms**

When architectural aesthetics and structural performance meet high in the sky, ultra-high performance concrete (UHPC), with its unique combination of strength and flexibility, is redefining the art of openwork in modern architecture. As an industry leader with 28 years of deep expertise in UHPC/GRC/GRG/GRP materials, Qinglong Group has deeply integrated materials science with engineering practice through full-chain technological innovation, making “light and transparent” and “strong and durable” no longer an either-or choice.

### I. Technological Breakthroughs in High-Openness UHPC Forms: From Material Innovation to Process Revolution

The core of achieving high openness rates lies in balancing material strength with structural stability. With a compressive strength exceeding 200MPa and excellent toughness, UHPC provides the foundation for complex openwork designs. Qinglong Group has elevated openness rates to levels unattainable by traditional materials through three key technological breakthroughs: first, multi-scale fiber blending technology optimizes the synergistic effect of steel fibers and ultra-fine silica fume, enabling the material to retain crack resistance even in openwork areas; second, parametric design and 3D-printed pre-forming technology achieve precise control of openwork patterns, with minimum openwork apertures as small as 5mm; finally, the patented “gradient pore structure” technology reduces material usage in non-load-bearing areas by 40% while ensuring structural safety, further enhancing the sense of openness and transparency.

### II. Application of Openwork Technology in Engineering Practice: Full-Chain Assurance from Concept to Completion

In the renovation project of Century Plaza on Nanjing East Road, the Qinglong team created China’s first large-scale openwork curtain wall system using UHPC translucent concrete technology. The project used BIM technology to simulate wind load forces on the openwork structure and adopted modular precast processes, keeping the installation error of individual openwork components weighing up to 800kg within 2mm. Throughout this process, Qinglong’s in-depth design capabilities and its production base’s annual capacity of 600,000 square meters worked in highly efficient synergy, satisfying designers’ aesthetic pursuit of “flowing light and shadow” while meeting the 150-year durability requirement through full-cycle quality control. Similar cases have been verified in projects such as the Dongguan Women and Children’s Activity Center, confirming the irreplaceability of UHPC in high-end public buildings.

### III. Industry Value of Openwork Technology: Redefining the Boundaries of Architectural Decoration Materials

The maturation of high-openness UHPC technology is driving the iterative upgrading of architectural decoration materials. Compared with GRC’s traditional linear moldings and GRG’s interior curved-surface applications, UHPC, with higher structural efficiency and richer expressiveness, fills the market gap for “ultra-light, ultra-tough, ultra-durable” decorative components. As a national Specialized, Refined, Distinctive, and Innovative enterprise, Qinglong Group participated in formulating the industry standard “General Technical Conditions for Ultra-High Performance Concrete (UHPC) Non-Load-Bearing Components”, incorporating the process parameters and quality control system of openwork technology into the specification and providing the industry with a replicable technical path. Whether for the irregular sunshades of commercial complexes or the artistic reliefs of cultural landmark buildings, UHPC—with its “invisible strength and visible lightness”—is becoming the “ideal canvas” for designers to realize their creativity.

From material R&D to engineering implementation, Qinglong Group has drawn on 28 years of full-chain experience to bring high-openness UHPC technology from the laboratory into practical application, not only expanding the boundaries of architectural aesthetics but also setting a new industry standard through technological innovation. In the future, with the deep integration of BIM technology and intelligent construction, UHPC openwork forms will unleash their potential in more fields, allowing buildings to truly achieve a “symbiosis of art and technology”.