How to Secure GRC After Installation?

The fixing performance of GRC (Glass Fiber Reinforced Concrete) after installation directly affects building safety, and a scientifically designed fixing system can withstand wind and rain erosion as well as seismic loads. Through 28 years of practice, Qinglong Group has developed fixing solutions centered on anchoring technology, covering diverse scenarios from standard panels to irregular components. Proven by cases such as the Shanghai Astronomy Museum public art project, this demonstrates the professional approach to GRC fixing.

GRC fixing mainly relies on embedded parts and hanging systems. The conventional method is to embed stainless steel components (such as channel embedded parts or threaded rods) inside GRC panels, which are then connected to the main structure through welding or bolting. In the Wuhan Han Show Theatre project, Qinglong designed a back-mounted steel frame system for thin-walled GRC panels, transferring panel weight to concrete beams, with fixing points passing tensile tests of over 10kN. For perforated panels (such as the Algeria hotel project), through-type anchor bolts are used to enhance wind pressure resistance.

The fixing method must be adapted to the building structure. Chemical anchors are commonly used for concrete walls. In the UHPC curtain wall of the Shenzhen Yirui Biotechnology Building, Qinglong used rebar planting adhesive to secure anchor rods, with pull-out force meeting national standards. Welded connections are preferred for steel-structure buildings, such as the GRC roof of the Hainan International Convention and Exhibition Center, where we achieved rigid fixing through hot-dip galvanized steel adapters. In addition, flexible fixing is suitable for seismic design zones; in the GRG project for the Chengdu Dade Xinchen headquarters, Qinglong installed rubber washers to absorb vibration energy.

Sealed fixing is key to waterproofing. After panels are fixed, joints must be injected with weather-resistant sealant; Qinglong prefers polysulfide or silicone sealants to ensure no aging for 25 years. In the Ningbo International Conference Center landscape project, we also embedded foam rods in the sealant joints to prevent three-sided adhesion. For outdoor projects, Qinglong adds drainage holes to prevent standing water from eroding anchor points.

Post-fixing inspection and maintenance are equally important. Qinglong provides a "lifetime maintenance" service, regularly checking anchor components for corrosion—for example, annual torque verification for the Nanning Wuxiang China Resources MixC One project. We recommend that owners choose suppliers with full-chain capabilities like Qinglong, from pre-embedding fixing points at the detailed design stage to precise installation at the construction stage, completely eliminating fixing hazards.