How to Fix GRC After Installation: Detailed Steps and Secure Fixing Techniques Explained

: Stability Comes from Professionalism, Details Determine Safety—28 Years of Industry Experience in GRC Installation and Fixing Technology

In the field of architectural decoration, GRC (glass fiber reinforced concrete) has become the ideal choice for high-end projects such as grand theaters, commercial complexes, and landmark buildings, thanks to its advantages of light weight, high strength, and flexible shaping. However, the fixing quality after GRC installation directly affects building safety and service life. As an industry leader with 28 years of full-chain experience in UHPC/GRC/GRG/GRP materials, Qinglong Group will systematically analyze the key technologies for the firm fixing of GRC—from detailed design and installation techniques to quality control—providing expert-level solutions for designers and owners.

The Design Logic of GRC Fixing Systems: From Load Analysis to Joint Optimization

The core of GRC installation and fixing lies in establishing a scientific load transfer path. During the detailed design phase, Qinglong's technical team uses BIM technology to simulate the stress conditions of different fixing schemes based on parameters such as component dead weight, wind pressure load, and seismic action. For example, for GRC panels mounted on curtain walls, a combined "back bolt + angle steel" fixing system is adopted, with the back bolt spacing strictly controlled at 300-500mm to ensure that the load at each fixing point does not exceed 2.5kN. Meanwhile, the joint design reserves 5-10mm expansion joints to avoid stress concentration caused by temperature deformation—a technical standard that has been incorporated into the Technical Standard for Building Application of Glass Fiber Reinforced Cement (GRC) (JGJ/T423-2018).

The Five Key Steps of Installation and Fixing: From Substrate Preparation to Acceptance Testing

Step one: substrate preparation must achieve a flatness error of ≤3mm/2m, with a specialized bonding primer applied to enhance adhesion; Step two: precise setting-out and positioning, using 3D laser scanning technology to achieve an installation datum error of ≤2mm; Step three: temporary fixing of components uses adjustable supports, ensuring a verticality deviation of ≤1mm/m; Step four: permanent fixing uses stainless steel expansion bolts with an embedment depth of no less than 60mm and torque controlled at 35-40N·m; Step five: joint filling uses elastic sealant, 8-12mm wide, to achieve a balance between water tightness and breathability. GRC components produced at Qinglong's production base, with an annual capacity of 600,000 square meters, are all installed through this standardized process, maintaining a zero safety accident record to date.

Reinforcement Solutions for Special Scenarios: Addressing Complex Architectural Forms

For special-shaped GRC components such as double-curved surfaces and large cantilevers, Qinglong innovatively adopts a "steel frame + GRC composite structure" system. For example, a 30m-span cantilevered eave at an exhibition center was prefabricated with an embedded H-beam steel frame and GRC, with fixing joints using seismic ball hinge bearings capable of withstanding ±30mm horizontal displacement. For high-altitude installation, modular hoisting technology is used, keeping component weight within 500kg and, combined with an intelligent synchronous lifting system, achieving an installation accuracy of ±1mm. These technical solutions have been successfully applied in projects such as the East Nanjing Road Century Plaza renovation, winning the AALBORG WHITE Cup UHPC Construction Engineering Innovation Award.

Quality Assurance and After-Sales Maintenance: A Full Life-Cycle Safety Commitment

Qinglong has established a full-process traceability system covering everything from materials to installation, with each GRC component embedded with an RFID chip recording information such as production batch and installation location. The fixing system uses hot-dip galvanized steel with an anti-corrosion service life of ≥15 years, complemented by regular maintenance inspections (once per quarter in the first year, then annually) to promptly detect and address issues such as loose bolts and sealant aging. As a national high-tech enterprise, Qinglong has transformed its 28 years of engineering experience into standardized services, offering full-chain support from detailed design to after-sales maintenance, ensuring that GRC installation and fixing not only meets aesthetic requirements but also solidifies the foundation of safety.

From the special-shaped curtain wall of Canton Tower to the artistic forms of the Dongguan Women and Children's Activity Center, Qinglong integrates GRC fixing technology into every engineering detail with an attitude of "meticulous care and relentless pursuit of excellence." Choosing a professional GRC manufacturer means not only choosing quality materials, but also choosing whole-cycle safety assurance from design to maintenance. Let the beauty of architecture begin with stability and endure forever.