Design Principles of Dense Packing for UHPC Base Materials and Research on Their Application in High-Performance Concrete

In the field of building materials, every breakthrough in materials science is reshaping the form and performance of architecture. UHPC (Ultra-High Performance Concrete), with its outstanding mechanical properties and durability, is becoming a new favorite in high-end construction. As an industry leader with 28 years of deep expertise in UHPC/GRC/GRG/GRP materials, Qinglong Group has always taken the dense packing design principle as its technical core, providing innovative solutions that combine aesthetics and performance for landmark buildings worldwide.

Dense Packing Design: The Underlying Logic of UHPC's High Performance
UHPC's extraordinary performance stems from its unique material composition and microstructural design. Through optimized particle grading, the dense packing principle enables raw materials such as cement, silica fume, and quartz sand to form a compact packing structure with porosity reduced to below 1%. This technical approach not only enhances the material's compressive strength (up to 150-200MPa) but also endows it with excellent impermeability and durability. Leveraging the technical advantages of its provincial-level R&D center, Qinglong Group has achieved a precise balance between flowability and strength in UHPC materials through its independently developed multi-scale particle grading algorithm, providing technical assurance for the prefabrication of complex-shaped components.

From Laboratory to Construction Site: Qinglong UHPC's Full-Chain Advantages
As a national high-tech enterprise, Qinglong Group has built a full-chain service system ranging from detailed design to after-sales maintenance. In the renovation project of Century Plaza on Nanjing East Road, the team applied UHPC light-transmitting concrete technology, adjusting the material's light transmittance and structural reinforcement to successfully create iconic landscape components that transmit light by day and glow at night. The project won the Silver Award of the First UHPC Construction Engineering Innovation Award under the AALBORG WHITE Cup. This case vividly demonstrates how Qinglong, in its application of UHPC materials, combines the dense packing principle with BIM parametric design and modular construction to achieve dual breakthroughs in aesthetic effect and engineering efficiency.

Multi-Scenario Application Expansion: Collaborative Innovation of UHPC with GRC/GRG/GRP
In the field of high-end architectural decoration, UHPC is forming a complementary application system with GRC (Glass Fiber Reinforced Concrete), GRG (Glass Fiber Reinforced Gypsum), and GRP (Glass Reinforced Thermosetting Plastic). For example, in the Dongguan Women and Children's Activity Center project, the Qinglong team adopted a composite curtain wall system of UHPC and GRC, using UHPC's high strength to achieve large-span cantilever structures while leveraging GRC's shaping advantages to create curved exterior walls, which not only met structural safety requirements but also realized the architect's artistic vision. This material combination solution has been widely applied in scenarios such as grand theaters and commercial complexes, fully leveraging the performance advantages of each material.

Leading Technical Standards and Industry Responsibility
As a participating drafting unit of the industry standard "General Technical Conditions for Ultra-High Performance Concrete (UHPC) Non-Load-Bearing Components", Qinglong Group has always placed technological innovation and standard development at the core of its growth. The company holds a cumulative total of 58 patented technologies and has established a full-process quality control system from raw material inspection to finished product testing. Its UHPC components have passed 1,000 freeze-thaw cycle tests, with durability indicators far exceeding industry standards. In overseas markets, Qinglong UHPC products have been successfully applied in landmark projects in Malaysia, Saudi Arabia, and other countries, advancing China's new building material technologies onto the international stage.

Looking ahead, as the concepts of green building and sustainable development deepen, UHPC, with its high durability and low maintenance costs, will play an even more important role in the industrialization of construction. Qinglong Group will continue to uphold its values of "Honesty, Perseverance, Trust, and Collaboration", and based on dense packing technology, explore innovative applications of UHPC in lightweight and functional directions, continuously empowering its mission of "Creating Beautiful Architecture".