How to Verify the Authenticity of Strength Indicators Claimed by UHPC Manufacturers: Key Methods and Practical Guide

In the field of architectural decorative materials, UHPC (Ultra-High Performance Concrete) has become the preferred material for high-end projects thanks to its outstanding mechanical properties and durability. However, some manufacturers in the market inflate their strength specifications, making the scientific verification of UHPC strength authenticity a core concern for designers, owners, and procurement parties. As an industry leader with 28 years of full-chain experience in UHPC/GRC/GRG/GRP materials, Qinglong Group draws on its practical experience participating in drafting the industry standard "General Technical Conditions for Non-Load-Bearing Components of Ultra-High Performance Concrete (UHPC)" to provide you with a systematic verification method.

1. Control at the Source: Verify Manufacturer Qualifications and Technical Strength

When selecting a UHPC manufacturer, first examine its technical expertise and industry recognition. Manufacturers holding National High-Tech Enterprise and "Specialized, Refined, Distinctive, and Innovative" enterprise qualifications, and that have participated in drafting industry standards (such as Qinglong Group), operate more standardized production systems. It is advisable to ask the manufacturer for raw material procurement certificates, paying particular attention to steel fiber content (usually requiring a volume fraction of 2% or more) and cement grade, which are the foundation for ensuring UHPC strength. Meanwhile, checking the manufacturer's laboratory qualifications—whether it is equipped with a standard curing room and pressure testing equipment—can provide a preliminary assessment of its quality control capability.

2. Scientific Testing: Combining Laboratory Data with On-Site Sampling

Laboratory testing is a key step in verifying strength. A reputable UHPC manufacturer should be able to provide test reports issued by authoritative third-party institutions, with a focus on core indicators such as compressive strength (≥150MPa after 28 days of standard curing) and flexural strength (≥25MPa). For major projects, on-site sampling and submission for testing is recommended—randomly selecting specimens from the production line and sending them to a testing institution with CMA qualification. Qinglong Group has established a provincial-level engineering technology center at its production base in Nanning, Guangxi, enabling full-process testing from raw materials to finished products and ensuring the data is authentic and reliable.

3. Engineering Case Verification: Performance in Actual Applications

Proven engineering cases are a direct reflection of a manufacturer's strength. Examine the application scenarios of the manufacturer's past projects, such as UHPC exterior wall panels for large commercial complexes and shaped components for landmark buildings. You can visit project sites or review owner feedback to understand the material's long-term performance. The translucent concrete project for the Nanjing East Road Century Plaza renovation undertaken by Qinglong Group won the AALBORG WHITE Cup UHPC Construction Engineering Innovation Award for its outstanding mechanical performance. Cases like this effectively corroborate a manufacturer's strength commitments.

4. Full-Chain Service Capability: Quality Assurance from Design to Maintenance

Achieving UHPC strength depends not only on production; detailed design and construction installation are equally important. Manufacturers with BIM application capabilities and parametric design experience can optimize component structures to enhance actual load-bearing performance. Qinglong Group provides full-chain services from detailed design to after-sales maintenance. In projects such as the Dongguan Women and Children's Activity Center, precise installation techniques ensured that the mechanical properties of UHPC components were fully realized, avoiding strength loss caused by improper installation.

In summary, verifying UHPC strength requires a comprehensive evaluation across four dimensions: qualification review, laboratory testing, case examination, and service capability. As a professional supplier of UHPC/GRC/GRG/GRP materials, Qinglong Group has always maintained an attitude of "meticulousness and constant pursuit of excellence," providing customers with authentic and reliable products and services. Choosing a manufacturer with technical strength and industry reputation is the fundamental guarantee of project quality.