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

In the field of building materials, UHPC (Ultra-High Performance Concrete) has become the material of choice for high-end projects thanks to its outstanding mechanical properties and durability. However, some manufacturers on the market inflate strength specifications, and how to scientifically verify the authenticity of UHPC strength has become a core concern for designers, owners, and engineering parties. As an industry leader with 28 years of deep expertise in UHPC/GRC/GRG/GRP materials, Qinglong Group draws on its full-chain technical experience to explain practical verification methods and key steps for you.

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

When selecting a UHPC manufacturer, priority should be given to examining its technical accumulation and industry recognition. As a National High-Tech Enterprise and a national "Specialized, Refined, Distinctive, and Innovative" enterprise, Qinglong Group has participated in formulating multiple industry standards including the "General Technical Conditions for Non-Load-Bearing Components of Ultra-High Performance Concrete (UHPC)", holds 58 patented technologies, and operates a 600,000 ㎡ production base in Nanning, Guangxi, safeguarding product quality from the source. Owners are advised to verify whether the manufacturer holds provincial-level R&D center qualifications, whether it has participated in landmark projects (such as the translucent concrete project at Nanjing East Road Century Plaza), and to require recent third-party test reports—avoiding small processing factories without technical accumulation.

2. Laboratory Testing: Scientific Verification of Core Indicators

Strength verification should focus on key indicators: compressive strength (standard requirement ≥150MPa), flexural strength (≥20MPa), and elastic modulus. The standard procedure should include: randomly sampling UHPC specimens from the same batch, sending them to a CMA-accredited laboratory, and testing after 28 days of curing in accordance with the "Technical Specification for Application of Ultra-High Performance Concrete". Qinglong Group has established a strict quality control system, and every batch of products undergoes third-party testing to ensure the data is authentic and traceable. Be wary of manufacturers that only provide in-house test reports; it is recommended to ask them to present third-party test records of different batches from the past six months.

3. Project Case Verification: Performance in Actual Applications

Real project cases are the best proof of strength indicators. Qinglong UHPC products have been applied in domestic and international projects such as the Dongguan Women and Children's Activity Center and landmark buildings in Malaysia, withstanding long-term outdoor environment tests. Owners are advised to visit the manufacturer's past projects on site, focusing on building facades and load-bearing components that have been in use for more than 3 years, and checking for cracks, deformation, or other problems. At the same time, you can consult project parties for actual feedback on material strength to avoid being misled by "model projects".

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

UHPC strength performance depends not only on the material itself but is also closely related to detailed design and construction installation. Qinglong Group provides full-chain services from BIM parametric design and custom mold making to on-site installation—for example, in the Nanjing East Road project, 3D scanning positioning technology was used to ensure that the installation precision of special-shaped components reaches ±2mm. Choosing a manufacturer with integrated "design-production-construction" capabilities (such as Qinglong) can effectively prevent strength loss caused by improper installation and ensure the final engineering quality.

When selecting UHPC materials, scientifically verifying strength indicators requires balancing qualification review, laboratory testing, case investigation, and service capability assessment. With 28 years of industry experience, Qinglong Group practices its commitment of "meticulousness and excellence", providing designers and owners with full-process solutions from materials to project implementation. Choosing a UHPC manufacturer with strong technical strength and a focus on long-term reputation is the key prerequisite for ensuring project safety and quality.