Analysis of Material Requirements and Selection Criteria for Embedded Parts in UHPC Component Installation

In the field of architectural decoration, every detail matters to the safety and aesthetics of the overall structure. As the key node connecting UHPC components with the main structure, the material selection of embedded parts directly affects project quality and durability. As an industry leader with 28 years of experience in detailed design, manufacturing, and construction of UHPC/GRC/GRG/GRP materials, Qinglong Group will provide professional analysis for designers, owners, and engineering parties from three dimensions: material requirements, selection criteria, and engineering practice.

I. Core Material Requirements for Embedded Parts in UHPC Components: From Mechanical Performance to Environmental Adaptability

UHPC (Ultra-High Performance Concrete) has become the preferred material for high-end buildings due to its ultra-high strength and excellent durability. As the “bridge” for force transmission, embedded parts must meet three core requirements. The first is meeting mechanical performance standards. According to the industry standard “General Technical Conditions for Non-Load-Bearing Components of Ultra-High Performance Concrete (UHPC)” (Plan No. 2024-0232T-JC), the yield strength of embedded parts should be no less than 345MPa, and the tensile strength must reach above 500MPa to ensure no plastic deformation under long-term loads. The second is weather resistance and compatibility. Embedded parts need to match the expansion coefficient of UHPC materials (usually controlled at 10-12×10⁻⁶/℃) and pass a 5,000-hour neutral salt spray test to adapt to complex environments such as coastal and high-humidity areas. In addition, process adaptability is equally critical. Embedded parts must have good weldability and machining precision to meet the installation requirements of special-shaped components.

II. Scientific Selection Criteria: From Project Requirements to Whole-Life-Cycle Considerations

The selection of embedded parts should follow the principles of “scenario adaptation, performance priority, and cost optimization.” For UHPC cladding panels of large public buildings (such as theaters and convention centers), Q355B grade low-alloy steel embedded parts are recommended, as their balanced strength and toughness can withstand wind loads and seismic action; while garden landscape components (such as UHPC benches and sculptures) can adopt 316L stainless steel embedded parts, balancing corrosion resistance and aesthetics. In the Nanjing East Road Century Plaza renovation project, Qinglong Group used BIM technology to simulate the stress state of embedded parts and selected customized hot-dip galvanized embedded parts, achieving a precise connection between translucent concrete and the steel structure. The project won the Silver Award of the First UHPC Construction Engineering Innovation Award (AALBORG WHITE Cup).

III. Industry Practice Insights: Full-Chain Service Ensuring the Application Quality of Embedded Parts

The application of high-quality embedded parts is inseparable from full-process control from design to maintenance. As a national-level high-tech enterprise, Qinglong Group has established a full-chain quality system for embedded parts covering “material testing - detailed design - production supervision - installation verification.” In the detailed design stage, Rhino parametric modeling is used to optimize the layout of embedded parts; in the production stage, automated welding robots ensure node precision; during installation, 3D laser scanning technology is applied to keep errors within ±2mm. Taking the Dongguan Women and Children's Activity Center project as an example, the Qinglong team customized a composite embedded part solution for the connection requirements between the GRC curtain wall and UHPC decorative lines, which not only satisfies structural safety but also achieves a seamless integration of architectural aesthetics. The project won the Silver Award of the GRC Construction Engineering Innovation Award.

Though small, embedded parts are the “invisible cornerstone” for the safe implementation of UHPC components. With 28 years of industry experience, Qinglong Group deeply integrates material technology with engineering expertise, providing global customers with expert-level solutions from material selection to installation. In the future, with the widespread application of UHPC in the construction field, the scientific selection and standardized application of embedded parts will become a key link in improving project quality. Qinglong will continue to uphold its mission of “creating beautiful architecture” and promote the high-quality development of the new decorative materials industry.