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

In the field of architectural decoration, the safety and stability of every component depend on precise control of details. As the "invisible cornerstone" of UHPC component installation, the material selection of embedded parts directly affects the quality and lifespan of the entire project. As an industry leader with 28 years of deep expertise in UHPC/GRC/GRG/GRP materials, Qinglong Group has always upheld the mission of "Creating Beautiful Architecture," treating the material requirements and selection logic of embedded parts as a core technical link throughout the entire chain from detailed design and manufacturing to construction and installation. Drawing on engineering practice, this article systematically analyzes the material standards and scientific selection methods for embedded parts used in UHPC component installation, providing professional reference for designers, owners, and engineering parties.

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

UHPC (Ultra-High Performance Concrete), with its ultra-high strength and excellent durability, is widely used in high-end applications such as landmark buildings and commercial complexes. Its embedded parts must simultaneously meet three core requirements: load-bearing capacity, corrosion resistance, and long-term stability. First, mechanical properties are the foundation: embedded parts must have sufficient tensile and compressive strength to transfer component loads, typically using low-alloy steel of Q355B grade or above, or stainless steel, to ensure no plastic deformation occurs under extreme loads. Second, corrosion resistance is critical, especially in complex environments such as humid or saline-alkali conditions; embedded parts must undergo surface treatment processes such as hot-dip galvanizing and epoxy coating to achieve a corrosion-resistant service life of over 50 years. In the processing of embedded parts at its Nanning production base, Qinglong Group strictly implements the "Metallic Coatings — Technical Requirements for Hot-Dip Galvanized Coatings on Iron and Steel Products" (GB/T 13912) to ensure that coating thickness and adhesion meet the standards.

In addition, material compatibility must not be overlooked. The difference in coefficient of linear expansion between UHPC and embedded parts must be kept within a reasonable range to prevent cracking caused by internal stresses arising from temperature changes. Verified through extensive test data, Qinglong's technical team has shown that when embedded parts are made of alloy materials with a thermal expansion coefficient close to that of UHPC, the risk of interface cracking can be effectively reduced. This experience has been successfully applied in benchmark projects such as the Century Plaza renovation project on Nanjing East Road.

II. Four Key Dimensions of Embedded Part Selection: From Engineering Needs to Whole-Life-Cycle Cost

Scientific selection of embedded parts requires combining project characteristics, environmental conditions, and construction techniques. Qinglong Group has summarized a four-dimensional selection method of "load matching, environmental adaptation, installation coordination, and cost optimization." In the load-matching dimension, the load-bearing capacity of embedded parts must be calculated based on the self-weight, wind load, and seismic load of UHPC components; for example, embedded parts for large curtain wall panels must undergo pull-out tests to ensure the ultimate load-bearing capacity is no less than 1.5 times the design value. In terms of environmental adaptation, coastal projects should use 316 stainless steel embedded parts, while hot-dip galvanized carbon steel can be adopted in dry inland areas to balance performance and cost.

Installation coordination is the key to improving construction efficiency. The dimensional precision of embedded parts must precisely match the reserved holes in UHPC components. Through BIM technology, Qinglong has achieved parametric design of embedded parts and components, controlling installation errors within ±2mm; this technology significantly shortened the on-site installation period in the Dongguan Women and Children's Activity Center project. Cost optimization requires balancing initial investment with long-term maintenance — for example, using standardized embedded parts in non-critical structural areas while selecting customized connectors for special-shaped components, achieving "precise investment and maximum efficiency."

III. Industry Practice and Standard Leadership: Qinglong's Embedded Part Technology Innovation and Responsibility

As a participating unit in drafting the industry standard "General Technical Conditions for Ultra-High Performance Concrete (UHPC) Non-Load-Bearing Components," Qinglong Group has made embedded part technology innovation a key focus of corporate R&D. Relying on a provincial engineering technology center, the team developed "UHPC-embedded part interface enhancement technology," which increases interface bond strength by more than 40% by setting mechanical anchoring nodes and chemical bonding coatings on the surface of embedded parts. This technology has been applied not only in domestic projects, but has also been exported with Qinglong's UHPC products to overseas markets such as Malaysia and Saudi Arabia, becoming a typical case of China's new building material technology export.

Meanwhile, Qinglong always adheres to its values of "Honesty, Hard Work, Trust, and Collaboration," establishing a whole-process quality traceability system in embedded part production. From raw material inspection to finished product shipment, key data is recorded at every stage to ensure that products are traceable and quality is controllable. This rigorous attitude is one of the core reasons why Qinglong has become a strategic partner of renowned real estate groups such as Poly and China Overseas.

Though small, embedded parts are the "lifeline" for the safe implementation of UHPC components. While pursuing architectural aesthetics and functional innovation, only with professional technology as support and strict standards as the bottom line can the promise of "meticulousness and excellence" truly be fulfilled. Qinglong Group will continue to deepen its expertise in the UHPC/GRC/GRG/GRP materials field, providing the industry with safer and more reliable solutions through whole-chain service capabilities and technological innovation, working with partners to "Create Beautiful Architecture" and achieve landmark classics.