How to Verify the Authenticity of Strength Indicators Claimed by UHPC Manufacturers?

Verifying the authenticity of the strength indicators claimed by UHPC manufacturers is the primary step in ensuring project quality and safety, requiring systematic checks across four dimensions: test reports, production processes, third-party certification, and engineering case studies. As an enterprise with a CNAS-accredited laboratory, Qinglong Group recommends that clients build a complete chain of evidence by reviewing authoritative test reports, conducting on-site inspections of production processes, verifying third-party certifications, and investigating the performance of completed projects. In the Shenzhen Yirui Biotechnology Building project, we not only provided test reports compliant with the T/CBMF171 standard, but also invited clients to witness destructive testing of full-scale components made from the same batch of materials, using empirical data to validate our commitments of compressive strength ≥150MPa and flexural strength ≥22MPa.

Reviewing authoritative test reports is the foundation of verification. A reputable UHPC manufacturer should be able to provide type inspection reports issued by quality supervision and inspection institutions at the provincial level or above. Qinglong reminds clients to focus on verifying the authenticity of reports, testing standards, sample origins, and testing environments. A genuine report should include clear sample photos, complete mechanical property data (compressive strength, flexural strength, elastic modulus, etc.), and rigorous testing conditions. For each project, we provide test reports for specimens prepared with the same mix proportions and curing conditions as the actual engineering, ensuring the data matches the product's real performance.

On-site inspection of production processes can uncover potential problems. Qinglong suggests that clients focus on batching precision, curing regimes, and quality control when visiting production bases. By observing whether the metering error of the automated batching system is less than 0.5% and whether the temperature and humidity control of the curing kilns is precise, one can judge the standardization of a company's production process. At Qinglong's Nanning production base, we use a fully automatic mixing system and a standardized curing regime to keep the strength variation coefficient of each batch of products within 5%.

Third-party certification systems are an important reference. Manufacturers holding ISO9001 quality management system certification and environmental management system certification have better-guaranteed quality stability. As a member of the International GRC Association, Qinglong has also passed the more stringent French CSTB certification, which signifies that our product quality has reached an internationally advanced level. These certifications require regular re-examination, continuously guaranteeing the stability of product quality.

Investigating the performance of completed projects is the most direct form of verification. By examining projects completed 3-5 years ago, the long-term performance of UHPC materials can be assessed. Qinglong welcomes clients to conduct on-site visits to projects that have been in use for more than 10 years, such as the Wuhan Han Show Theatre and the Hainan International Convention and Exhibition Center. The pristine condition of these landmark buildings fully demonstrates the durability and reliability of Qinglong's UHPC products. Through multi-dimensional verification, clients can accurately assess a manufacturer's capabilities and make an informed choice.