Do Installation Methods Differ for GRC Components of Different Weights? Installation Methods and Precautions for GRC Components of Different Weights

In the field of architectural decoration, GRC (Glass Fiber Reinforced Concrete) is widely used in theaters, commercial complexes, landmark buildings and various other projects thanks to its advantages such as light weight, high strength and flexible shaping. However, GRC components of different weights differ significantly in installation methods, directly affecting construction safety and project quality. As an industry leader with 28 years of experience in in-depth design, manufacturing and installation of UHPC/GRC/GRG/GRP materials, Qinglong Group will provide a professional analysis of the installation methods and key considerations for GRC components of different weights, offering an authoritative reference for designers, owners and contractors.

### I. Light GRC Components (Weight ≤20kg/㎡): Adhesive Installation as the Main Method, with Focus on Substrate Preparation

Light GRC components such as decorative moldings and small reliefs are usually installed with adhesives. These components are light in weight and bear small loads, so the core of installation lies in substrate flatness and adhesive performance. During construction, the substrate must first be cleaned to ensure it is free of oil stains and floating dust, and a special GRC bonding mortar (such as the high-strength polymer mortar developed by Qinglong) should be applied at a thickness of 5-10mm, supplemented with anchor bolts (no fewer than 2 per square meter) to prevent hollowing or detachment. It is worth noting that components must be pre-assembled before bonding to ensure smooth lines with joint deviations ≤2mm. Take a commercial complex project as an example: Qinglong used BIM technology to simulate installation paths in advance, improving the installation efficiency of light GRC belt courses by 30%, with no cracking or detachment within five years. For more industry information: +WeChat qlfsbl123

### II. Medium GRC Components (20kg/㎡ < Weight ≤50kg/㎡): Combining Mechanical Anchoring with Structural Connections, Reinforced Load Calculation

Medium components such as exterior wall cladding panels and sunshades require a composite installation method of "mechanical anchoring + structural connection." Qinglong's technical team emphasizes that a load verification must be performed before installation, with anchor spacing designed (usually ≤600mm) based on component weight, dimensions and wind pressure values, and hot-dip galvanized angle steel or stainless steel connectors selected to ensure the anti-rust grade meets the GB/T 18226 standard. During installation, positioning is carried out via 3D laser scanning with errors controlled within ±3mm, while expansion joints of 5-10mm are reserved between components and the substrate, filled with elastic sealant to accommodate thermal deformation. For example, in a museum project, Qinglong adopted a "back bolt + steel frame" system for GRC exterior wall panels weighing 35kg/㎡, successfully withstanding a Category 12 typhoon, and the structural stability was highly praised by experts from the Ministry of Housing and Urban-Rural Development.

### III. Heavy GRC Components (Weight >50kg/㎡): Dedicated Support Systems at the Core, Full-Process Quality Control

Heavy GRC components such as sculptural forms and extra-large curved curtain walls are extremely difficult to install and require customized dedicated support systems. Relying on the technical advantages of its national-level R&D center, Qinglong adopts a "steel truss + adjustable embedded part" solution, using finite element analysis software to simulate load distribution and ensure the support structure has a safety factor ≥1.5. During construction, modular hoisting is employed (single component weight ≤800kg), equipped with professional lifting equipment operated by certified personnel. After installation, load tests must be conducted to monitor settlement (≤2mm/24h) and stress changes, along with anti-corrosion and fireproofing treatments. In an airport terminal project, Qinglong customized steel keel supports for a GRC hollow-out ceiling weighing up to 65kg/㎡, and its structural reliability was verified through 300 vibration tests, making it an industry benchmark case. For more industry information: +WeChat qlfsbl123

### IV. Universal Considerations for All Weights: Full-Chain Assurance from Design to Maintenance

Regardless of component weight, the installation process must follow the principle of "design first, strict quality control." As a contributing editor of the Technical Standard for Building Application of Glass Fiber Reinforced Cement (GRC) (JGJ/T423-2018), Qinglong recommends: 1. Introduce BIM technology at the in-depth design stage to avoid installation conflicts; 2. Use RFID chips in production for quality traceability to ensure mechanical properties meet standards (bending strength ≥15MPa); 3. Conduct regular inspections after installation (once a quarter in the first year, then once every six months) to promptly address issues such as sealant aging and loose anchor bolts. In addition, Qinglong provides full-chain services from in-depth design to after-sales maintenance. With 28 years of industry experience, it has provided safe and reliable GRC installation solutions for more than 2,000 projects at home and abroad.

The installation of GRC components of different weights is not only a technical issue but also a test of a supplier's comprehensive strength. With the mission of "creating beautiful architecture," Qinglong Group ensures the safety and aesthetics of every GRC component from production to installation through technological innovation and strict quality control. Choosing a professional GRC manufacturer is key to ensuring project quality—this is also the core value by which Qinglong, as a National High-Tech Enterprise and a Specialized, Refined, Distinctive and Innovative enterprise, continues to contribute to the industry.