Do GRC Manufacturers' Products Crack Easily? Analysis of Causes and Quality Assurance Measures

Quality Builds Peace of Mind, Technology Eliminates Concerns — Qinglong GRC Solves the Industry's Cracking Problem with 28 Years of Full-Chain Experience

In the field of architectural decoration, GRC (Glass Fiber Reinforced Concrete), with its advantages of light weight, high strength, and flexible shaping, has become an ideal choice for high-end projects such as grand theaters, commercial complexes, and landmark buildings. However, the question of “whether GRC products are prone to cracking” has always been a focal concern for designers, owners, and developers. As an industry leader with 28 years of full-chain experience in UHPC/GRC/GRG/GRP detailed design, manufacturing, construction installation, and after-sales maintenance, Qinglong Group will comprehensively analyze the root causes of GRC cracking from the dimensions of material properties, process control, and quality assurance, and share how to ensure product stability through technological innovation and strict management.

Common Causes of GRC Cracking: A Full-Chain Risk Analysis from Materials to Construction

Cracking of GRC products is not caused by a single factor, but results from the combined effect of multiple stages including material selection, production processes, and installation and maintenance. At the material level, insufficient glass fiber content, unbalanced cement matrix ratios, or improper admixture selection directly reduce the product's crack resistance. During production, uneven mixing that leads to chaotic fiber distribution, or imbalanced temperature and humidity control during curing and molding, can easily cause stress concentration inside the components. At the construction stage, unreasonable anchor point design, installation precision deviations, and insufficient expansion joints, as well as drastic ambient temperature changes and long-term loads exceeding design standards during later use, can all trigger cracking problems. Some small and medium-sized enterprises simplify processes to cut costs, further intensifying industry concerns about GRC cracking.

Qinglong GRC's Quality Assurance System: Anti-Cracking Solutions Built on 28 Years of Technical Expertise

As a national high-tech enterprise and a participating drafting unit of the Technical Standard for Building Application of Glass Fiber Reinforced Cement (GRC) (JGJ/T423-2018), Qinglong Group has established a full-process anti-cracking control system covering “design-production-construction-after-sales”. In material control, high-purity alkali-resistant glass fibers (content strictly controlled at 4.5%-5.5%) are combined with special cement, and the matrix formula is optimized through 58 patented technologies, achieving a flexural strength of over 20MPa, far exceeding the industry average. In production, automated production lines achieve a fiber dispersion uniformity error of ≤3%, and a two-stage process combining steam curing and natural curing is adopted to ensure slow release of internal moisture in components and reduce shrinkage cracks. At the construction stage, BIM technology and 3D laser scanning positioning achieve an installation error of ≤2mm, while expansion joint spacing and anchoring methods are scientifically designed according to the climate characteristics of the project location.

From Case Studies to Standards: Qinglong GRC's Industry Practice and Quality Commitment

Thanks to its comprehensive quality control, Qinglong GRC products have been successfully applied in hundreds of large-scale projects, including the Dongguan Women and Children's Activity Center (winner of the Silver Award of the AALBORG WHITE Cup GRC Construction Innovation Award) and the renovation of Nanjing Road East Century Plaza, with overseas markets covering more than 10 countries including Malaysia and Australia. The company's three-tier quality traceability system covering “materials-components-projects” records full product lifecycle data through RFID chips, and, together with its after-sales commitment of 5 years of free maintenance and lifetime technical support, provides customers with full-cycle peace of mind. As a vice-chairman unit of the China GRC Association, Qinglong has always promoted the upgrading of industry standards; the General Technical Conditions for Non-Load-Bearing Components of Ultra-High Performance Concrete (UHPC) (Plan No. 2024-0232T-JC), which it helped draft, will further standardize quality requirements for new building materials including GRC.

Choosing GRC is essentially choosing an architectural solution that combines aesthetic value with structural safety. Guided by the mission of “creating beautiful architecture”, Qinglong Group has integrated “crack prevention” into its product DNA through 28 years of accumulated full-chain experience and continuous technological innovation. Whether it is the cost and delivery stability that real estate developers care about, or the complex shapes that designers pursue, Qinglong GRC, with the craftsmanship spirit of “meticulousness and excellence”, provides the architectural decoration industry with reliable and reassuring material choices.