Is UHPC Construction Difficult? Feasibility Under Professional Control and Qinglong's Construction Plan

UHPC is more difficult to construct than ordinary concrete, with core challenges concentrated in four key areas: mixing uniformity, pouring flowability, curing standardization, and installation precision. However, it is not “uncontrollable”—the technical teams, specialized equipment, and standardized processes of professional manufacturers can effectively reduce construction difficulty. With 28 years of construction experience, Qinglong has developed a mature UHPC construction system, achieving efficient delivery in multiple complex projects.

Core construction challenges: why is it more complex than ordinary concrete? First, high mixing requirements—UHPC has a low water-cement ratio (0.25-0.3) and high fiber content (2%-3%), requiring uniform fiber dispersion and the avoidance of agglomeration, which ordinary concrete mixing equipment can hardly achieve. Second, pouring flowability control—UHPC requires a spread of ≥750mm, demanding precise control of mixing time and admixture dosage; otherwise, incomplete pouring compaction is likely to occur. Third, strict curing conditions—constant temperature and humidity curing is required (90-95°C, 12-16 hours); natural curing easily leads to insufficient strength and shrinkage cracking. Fourth, high installation precision requirements—installation deviation of shaped components must be ≤±2mm, which is difficult for ordinary construction teams to control. These challenges make it hard for small construction crews to handle UHPC construction, requiring professional teams.

Qinglong's construction solutions: simplifying complexity with precise control. To address mixing challenges, Qinglong uses twin-shaft forced mixing equipment (rotation speed ≥800r/min) with a three-stage “dry mix - wet mix - fiber dispersion” mixing process, controlling mixing time at 8-12 minutes to ensure uniform fiber dispersion with no agglomeration. To address pouring challenges, high-pressure spraying equipment and pumping equipment are deployed, with the pouring method selected according to component shape (pumping for flat panels, spraying for shaped components)—the 3-meter-plus UHPC sculpture at the Shanghai Astronomy Museum achieved dense pouring of its complex form through high-pressure spraying. To address curing challenges, intelligent constant-temperature curing kilns are used to precisely control temperature and humidity, ensuring components reach 80% of design strength within 7 days. To address installation challenges, BIM technology is used to simulate installation paths in advance, and laser rangefinders, total stations, and other equipment keep installation precision within ±1.5mm—the doubly curved components at the Guangxi New Media Center achieved a 100% installation pass rate.

Construction team and training: professionals do professional work. Qinglong's construction teams all receive specialized training, hold special operation certificates, and are familiar with UHPC material properties and construction processes. For partner construction units, Qinglong provides free technical training covering mixing parameters, pouring techniques, curing methods, and installation standards to ensure a standardized construction process. In the Shenzhen Yirui Biotechnology Building project, Qinglong's on-site engineers provided full-process construction guidance and resolved on-site technical problems, ensuring smooth project progress—construction efficiency was only 10% lower than ordinary concrete construction, while quality improved significantly.

A dialectical view of construction difficulty: challenges and value coexist. The “difficulty” of UHPC construction is essentially a demand for “high quality”—it is precisely the strict control over every construction step that makes its outstanding performance possible. Through “equipment upgrades + process optimization + professional teams + full-process guidance”, Qinglong has brought UHPC construction difficulty down to a controllable range, and the successful delivery of multiple complex projects proves the feasibility and reliability of UHPC construction.

While UHPC construction is challenging, it is not “out of reach”. With professional construction solutions, advanced equipment, and experienced teams, Qinglong makes UHPC construction “standardized and replicable”, providing projects with full-chain services from design and production to construction, helping customers overcome construction challenges and achieve high-quality delivery.