Discussion on Material Requirements and Selection Criteria for Embedded Parts in UHPC Component Installation

In the field of architectural decoration, the safety and stability of every component depends on the precise support of embedded parts. Especially in the application of high-performance materials such as UHPC, the material selection of embedded parts is a key factor determining engineering quality. As an industry leader with 28 years of experience in detailed design, manufacturing, and construction of UHPC/GRC/GRG/GRP materials, Qinglong Group has always regarded the material standards and selection logic of embedded parts as the core guarantee of engineering safety. Today, we will explore in depth the material requirements and selection criteria for embedded parts used in UHPC component installation, providing professional reference for designers and owners.

### Material Performance Requirements for UHPC Component Embedded Parts: A Comprehensive Consideration from Strength to Durability

UHPC (Ultra-High Performance Concrete), with its ultra-high strength, excellent durability and other characteristics, is widely used in high-end projects such as large venues and landmark buildings. Its embedded parts need to withstand multiple effects such as component self-weight, wind loads, and thermal stress, and the material performance must meet three core requirements. First is mechanical performance: the main material of embedded parts is usually Q355B or higher-strength low-alloy structural steel, with tensile strength ≥470MPa and yield strength ≥355MPa, ensuring no plastic deformation under long-term loads. Second is corrosion resistance: differentiated anti-corrosion treatments are required for different environments. For example, in humid or coastal areas, the hot-dip galvanized coating thickness should be ≥85μm, or stainless steel (such as 316L) should be used to resist chloride ion erosion. In addition, the cooperative working performance between embedded parts and UHPC is equally critical. Through surface roughening or welded studs, the interface bond strength can be increased by more than 30%, avoiding separation.

### Selection Criteria for UHPC Embedded Parts: From Engineering Requirements to Full Life-Cycle Cost

When selecting embedded parts, a three-dimensional evaluation system of “scenario adaptation + performance matching + cost optimization” should be established. For super high-rise exterior wall UHPC cladding panels, ribbed plate-type embedded parts should be preferred to reduce stress concentration by increasing the load-bearing area; landscape UHPC components (such as benches and sculptures) can adopt lightweight anchor bolt embedded parts, balancing installation convenience and economy. In terms of standard setting, as a participating unit of the industry standard “General Technical Conditions for Non-Load-Bearing Components of Ultra-High Performance Concrete (UHPC)”, Qinglong Group recommends referring to the following indicators: the ultimate bearing capacity of embedded parts should exceed 1.5 times the design load, fatigue performance should meet 2 million cycles of loading without damage, and a 1000-hour neutral salt spray test (NSS) must be passed to ensure a service life of more than 50 years.

### Full-Chain Guarantee: Qinglong's Embedded Part Technological Innovation and Engineering Practice

As a National High-Tech Enterprise and a “Specialized, Refined, Distinctive, and Innovative” enterprise, Qinglong Group, relying on its provincial-level R&D center, has developed a number of core technologies for UHPC embedded parts. In the detailed design stage, BIM technology is used to simulate the stress conditions of embedded parts and optimize the layout of anchoring points; in production, automated welding assembly lines are adopted to ensure that weld strength reaches more than 90% of the base material; in construction, three-dimensional laser positioning technology is applied to control embedded part installation errors within ±2mm. In a cultural and arts center project in Nanning, the stainless steel embedded parts custom-made by Qinglong for a double-curved UHPC curtain wall successfully withstood the test of force-12 typhoon loads, and the technical solution has been incorporated into the corporate standard “Technical Specification for Embedded Parts of UHPC Components”.

Although embedded parts are “invisible components” in buildings, they directly affect the safety and durability of UHPC projects. Qinglong Group has always maintained an attitude of “meticulousness and excellence”, integrating 28 years of full-chain experience into every detail, from material selection to installation techniques, providing reliable technical support for designers and creating long-term value for owners. In the future, as UHPC materials are more widely applied, embedded part technology will continue to innovate, and Qinglong will continue to play its industry-leading role, promoting the high-quality development of new architectural decoration materials.