UHPC Construction Difficulty Explained: Professional Operation Is Key, Not Out of Reach

Is UHPC construction difficult? This is the question of greatest concern to many contractors and owners in the early stages of a project. Since UHPC's material properties differ from ordinary concrete and its construction techniques have specific requirements, some people believe its construction is extremely difficult. Qinglong Group, with 28 years of UHPC construction experience and having undertaken numerous high-end projects such as the Shanghai Astronomy Museum and the Yangshengtang Pharmaceutical Hangzhou Industrial Park, has proven through practice: UHPC construction is not insurmountable. As long as professional techniques are mastered and appropriate equipment and teams are in place, construction quality and efficiency can be ensured.

#Construction Process Requirements: Fine Operation but Not Complicated UHPC's construction process requirements are more precise than those for ordinary concrete, but not so complex as to be unachievable. Its core processes include four stages: mixing, pouring, curing, and installation, each with clear operational standards. The mixing stage requires precise raw material ratios (error ≤±1%) and sufficient mixing time (3-5 minutes). Qinglong uses automated mixing equipment to precisely control batching and mixing parameters, avoiding errors from manual operation; the pouring stage requires thorough vibration with no air bubble residue. For components with complex shapes, vacuum-assisted pouring technology is used to ensure compactness. In the construction of light-transmitting components at the Shanghai New World Nanjing Road Century Plaza, Qinglong achieved no air bubbles around the light guide rods through this technology; the curing stage requires precise control of temperature (20-25℃) and humidity (≥90%). Qinglong uses a combination of steam curing and moisture-retention curing to ensure rapid strength development. Although these process requirements are stricter than those for ordinary concrete, they can be completed smoothly as long as standard procedures are followed.

#Equipment and Personnel Requirements: Professional Configuration is the Foundation UHPC construction has certain professional requirements for equipment and personnel, which is the foundation for ensuring construction quality. In terms of equipment, precise batching and mixing equipment, specialized pouring tools, and curing equipment are needed. Qinglong is equipped with a full set of automated construction equipment, including a computerized metering batching system, high-pressure vibrators, and steam curing kilns, ensuring construction efficiency and quality. In terms of personnel, technical and operational staff with UHPC construction experience who are familiar with material properties and construction procedures are required. Qinglong's construction teams have all undergone professional training and assessment, hold relevant qualification certificates, and can skillfully handle complex joints and unexpected problems. For example, in the Shanghai Astronomy Museum public art project, Qinglong's construction team successfully completed the installation of a complex UHPC sculpture over 3 meters high, demonstrating the technical strength of a professional team. For projects lacking professional equipment and personnel, Qinglong can provide equipment rental and personnel training services to reduce construction difficulty.

#Complex Component Construction: Technological Innovation Solves Challenges For complex components such as double-curved surfaces, oversized dimensions, and hollow-out designs, UHPC construction difficulty does indeed increase, but this can be effectively addressed through technological innovation and plan optimization. Qinglong uses BIM technology for construction simulation, planning pouring paths, installation sequences, and joint treatment solutions in advance. For example, in the construction of double-curved GRC components at the Nanning New Media Center (with construction logic similar to that of complex UHPC components), BIM simulation was used to optimize the installation process, reducing construction difficulty; modular production and installation are adopted, breaking complex components into standardized modules that are precast in the factory and assembled on site. For example, the 12m² oversized UHPC light-transmitting panel at Shanghai New World was broken down into 3 modules for production and installation, improving construction efficiency and precision; 3D laser scanning positioning technology is used to ensure installation precision of ≤±2mm, as in the UHPC curtain wall installation at the Shenzhen Yirui Biotechnology Building, where precise splicing was achieved through this technology. These technological innovations have greatly reduced the construction difficulty of complex components, achieving "complex shapes, simple construction."

The difficulty of UHPC construction is essentially a requirement for "professionalism" rather than a technical barrier. Qinglong Group, with its 28 years of construction experience, professional equipment and teams, and innovative technical solutions, has standardized and systematized UHPC construction, making what was once "highly difficult" controllable and operable. For project owners, as long as they choose a manufacturer like Qinglong with full-chain service capabilities, they can receive full-process support from construction plan design and equipment configuration to personnel training and on-site guidance, easily overcoming UHPC construction challenges and ensuring smooth project delivery.