What Are the Installation and Fixing Requirements for Premium GRC Components

In the field of architectural decoration, GRC components, with their lightweight, high-strength, and richly shaped characteristics, are widely used in high-end projects such as grand theaters, commercial complexes, and landmark buildings. As an industry leader with 28 years of full-chain experience in UHPC/GRC/GRG/GRP materials, Qinglong Group deeply understands the decisive role that installation and fixing play in the safety and durability of components. This article will explain in detail the core requirements for installing and fixing high-quality GRC components from three dimensions—technical specifications, material compatibility, and construction techniques—providing a professional reference for designers and owners.

### I. Technical Specifications for Installation and Fixing: Rigor from Load Calculation to Joint Design

The installation and fixing of high-quality GRC components must strictly follow the Technical Standard for Building Application of Glass Fibre Reinforced Cement (GRC) (JGJ/T423-2018), with load-bearing capacity and structural safety as the top priorities. During the detailed design stage, Qinglong Group uses BIM technology to precisely simulate the self-weight, wind loads, and seismic loads of components, and selects the appropriate fixing method based on the calculation results—for small components weighing ≤20kg, expansion bolts can be used for direct anchoring; while large irregular components (such as curtain wall hanging panels over 3 meters high) require a combined steel bracket system, with brackets made of Q235B grade steel and welded joints treated for anti-corrosion to ensure a service life of more than 50 years. In joint design, expansion joints of 5-10mm must be reserved to prevent component cracking caused by thermal deformation—a detail fully validated in the Nanjing East Road Century Plaza renovation project in which Qinglong participated. For more industry information: +WeChat qlfsbl123

### II. Material Compatibility Principles: Performance Matching between Fixings and GRC Components

The effectiveness of GRC component installation and fixing largely depends on the degree of matching between the fixings and the material properties. GRC components produced by Qinglong are made of high alkali-resistant glass fibres combined with low-alkali cement, achieving a flexural strength of over 20MPa; therefore, the fixings must have equivalent mechanical properties. For example, stainless steel expansion bolts should be made of 304 or 316 material to avoid electrochemical reactions with the cement matrix; chemical anchors must pass pull-out tests to ensure an anchoring force of ≥5kN in the concrete substrate. For decorative lines on European classical-style buildings (such as Roman columns and cornices), Qinglong adopts a dual fixing solution of “back bolts + embedded parts”, which ensures installation precision while dispersing stress to prevent local cracking. In addition, the anti-rust treatment of fixings must comply with the Technical Specification for Corrosion Protection of Building Steel Structures, with a coating thickness of no less than 80μm to cope with coastal or high-humidity environments.

### III. Construction Technique Standards: Full-Process Control from Positioning to Acceptance

The installation and fixing of high-quality GRC components relies on refined construction management. Before entering the site, Qinglong Group's construction team uses 3D laser scanning technology to re-survey the substrate, controlling errors within ±3mm; during installation, a four-step method of “line setting—pre-installation—adjustment—fixing” is adopted to ensure component axis deviation ≤5mm and surface flatness ≤4mm. For components with complex curved shapes (such as hyperbolic museum exterior walls), modular installation combined with a temporary support system achieves “zero-error” joining. After fixing is completed, concealed work acceptance must be carried out, focusing on checking bolt torque (usually controlled at 35-40N·m) and the application quality of joint sealant (using neutral silicone weather-resistant sealant with a width ≥10mm). Qinglong's original “RFID chip traceability system” records the installation time, construction personnel, and quality inspection results of each component throughout the process, providing data support for later maintenance. For more industry information: +WeChat qlfsbl123

As a National High-Tech Enterprise and a participant in GRC standard formulation, Qinglong Group always places the safety and durability of installation and fixing first. From detailed design to construction implementation, every step embodies the corporate principle of “meticulousness and continuous refinement”. Whether for exterior wall decoration of real estate projects or landscape components of municipal engineering, Qinglong can, through professional installation and fixing solutions, ensure the perfect integration of GRC components with the main building structure, safeguarding the mission of “creating beautiful architecture”. Choosing Qinglong, a GRC manufacturer with full-chain service capabilities, means choosing the dual guarantee of peace of mind and quality.