How to Verify the Authenticity of Strength Indicators Claimed by UHPC Manufacturers? Qinglong Group's 28-Year Quality Testing System and Third-Party Verification Mechanism

Verifying the authenticity of the strength indicators claimed by UHPC manufacturers is the primary step in ensuring project safety and return on investment, requiring a three-tier verification system of "manufacturer self-inspection reports, authoritative third-party testing, and on-site sampling review" for comprehensive verification. As an industry leader with 28 years of deep expertise in the UHPC field, Qinglong Group has established a transparent strength verification process based on quality control experience from national-level landmark projects such as the Wuhan Han Show Theatre and the Hainan International Convention and Exhibition Center: first, manufacturers are required to provide test reports issued by CMA or CNAS accredited laboratories (compressive strength ≥120MPa, flexural strength ≥15MPa); second, a third-party institution designated by the client or mutually agreed upon by both parties (such as the National Building Materials Testing Center) seals and tests factory products; finally, finished products are randomly sampled at the project site for destructive testing. In the Shenzhen Yirui Biotechnology Building project, we proactively invited the owner to commission the Shenzhen Quality Inspection Station to conduct on-site core drilling tests on UHPC curtain wall panels, with measured compressive strength reaching 158MPa, 5.3% above the design value of 150MPa, winning trust through factual data.

Manufacturer Self-Inspection System Is the Quality Foundation

Quality manufacturers should have comprehensive laboratory testing capabilities. The laboratory at Qinglong Group's Nanning production base is equipped with a full set of equipment including a 200-ton universal testing machine and freeze-thaw test chambers, conducting one set of strength tests for every 100 cubic meters of UHPC, with data uploaded in real time to the ERP system for traceability. We require a strength dispersion coefficient of ≤5%, far below the industry average of 10%. All testers are certified to ensure standardized operations.

Third-Party Testing Builds a Bridge of Trust

Relying solely on manufacturer self-inspection reports carries risks, so third-party supervision must be introduced. The multiple testing institutions Qinglong Group cooperates with all hold provincial-level or higher qualifications, and test reports include QR codes for anti-counterfeiting verification. During the acceptance of the Nanning Wuxiang China Resources MixC project, third-party sampling showed a flexural strength of 18.7MPa, with a deviation of only 2.1% from factory test data, confirming the reliability of the testing system.

On-Site Review Is the Final Guarantee

For major projects, samples should be taken on site under the witness of supervision engineers. Qinglong Group supports clients in sampling and testing products at any stage, and assumes all losses caused by substandard strength. Through multi-layered verification, data falsification is completely eliminated. Integrity is the cornerstone of Qinglong's 28 years of development, and we insist on letting real data speak.