Do GRC Components of Different Weights Require Different Installation Methods?

The installation methods for GRC components vary significantly with weight. Based on weight, components are classified into three categories—light (≤50kg), medium (50-200kg), and heavy (>200kg)—using adhesive fixing, hanger connection, and a bolt anchoring + hoisting combination respectively. By precisely matching installation methods, Qinglong has achieved an installation pass rate of 99.8% for components of all weight categories, with safe and stable installation delivered in projects such as the Wuhan Hanxiu Theater and the Sanya Festival Square.

I. Light GRC Components (≤50kg): Primarily Adhesive Fixing

The installation of light components focuses on convenience and aesthetics. Installation method: components are fixed with polymer cement mortar or a special adhesive; the bonding surface must be cleaned thoroughly and coated with an interface agent, and the bonded area must be ≥70% of the component's contact area. Qinglong's special adhesive has a bonding strength ≥1.5MPa, meeting the load-bearing requirements of light components. Applicable scenarios: thin-walled components (thickness ≤20mm) such as decorative moldings, window surrounds, and small reliefs. In Qinglong's auditorium renovation project for the American International School of Guangzhou, light decorative moldings were fixed with adhesive, improving installation efficiency by 50%. Installation key points: after bonding, temporarily secure the component with supports (≥24 hours) to prevent displacement; Qinglong's temporary support spacing is ≤1.2m to ensure secure bonding.

II. Medium GRC Components (50-200kg): Primarily Hanger Connection

The installation of medium components balances stability and operability. Installation method: components are connected with stainless steel hangers (angle bracket type, support plate type); the number of hangers is ≥4 with spacing ≤600mm, and hangers are fixed to the wall/steel frame. Qinglong's stainless steel hangers have a pull-out resistance ≥3kN, matching the weight of medium components. Applicable scenarios: exterior wall cladding panels, medium Roman columns, and decorative components with spans ≤1.5m. In the medium GRC cladding panels of Qinglong's Jiahecheng Windsor Beijun project in Nanning, hanger connection achieved installation precision ≤±2mm. Installation key points: snap layout lines for positioning before installation and use a laser level to verify verticality and flatness; Qinglong's post-installation verticality deviation is ≤3mm/m and flatness deviation ≤2mm/m.

III. Heavy GRC Components (>200kg): Bolt Anchoring + Hoisting Combination

The installation of heavy components emphasizes safety and load-bearing capacity. Installation method: components are anchored with embedded bolts or expansion bolts, supported by large hoisting equipment (truck cranes, crawler cranes); the number of bolts is ≥6 with spacing ≤500mm. Qinglong's bolts have a pull-out resistance ≥5kN, ensuring load-bearing safety. Applicable scenarios: large Roman columns, double-curved curtain wall panels, and heavy components with spans >2m. The heavy GRC components at Qinglong's Wuhan Hanxiu Theater project (weighing over 500kg) were hoisted by crawler crane and anchored with embedded bolts, achieving stable installation with no hidden hazards. Installation key points: use dedicated hoisting tools (lifting beams, flexible slings) during hoisting to avoid component deformation, and conduct pull-out testing after installation; Qinglong's sampling inspection pass rate for installed heavy components reaches 100%. Project case: the heavy GRC roof components at the Hainan International Convention and Exhibition Center (300kg per piece) were installed with bolt anchoring and truck crane hoisting; after installation, they withstood strong winds without loosening, earning industry recognition.