What Are the Steps of GRC Installation? Detailed Analysis and Operation Guide

Precision Installation, Crafting Architectural Beauty: A Complete Technical Guide to GRC Installation

In the field of modern 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 lightweight, high-strength, and design-flexible characteristics. As an industry-leading enterprise with 28 years of experience in GRC detailed design, manufacturing, and construction, Qinglong Group understands that scientific and standardized installation techniques are key to ensuring GRC components are safe, durable, and aesthetically presented. This article provides a systematic breakdown of the standardized steps of GRC installation, offering professional technical reference for designers, owners, and construction teams.

Pre-Installation Preparation for GRC: From Detailed Design to Material Acceptance

Meticulous preparation before installation is the foundation for avoiding construction risks. First, the BIM model must be refined, with on-site structural dimensions verified through 3D scanning technology to ensure precise alignment between GRC components and the building structure. In the Nanjing East Road Century Plaza renovation project, this step helped the Qinglong team achieve millimeter-level installation accuracy for translucent concrete components. When materials arrive on site, the flexural strength of GRC panels (should be ≥15MPa), surface flatness, and embedded part positions must be strictly inspected, while factory certificates and third-party test reports should be verified to prevent substandard products from entering the construction process. For different climate zones, temperature and humidity control plans must be developed in advance—for example, during rainy-season construction in South China, rain protection measures are required and the drying time of the base layer should be extended.

Core GRC Installation Process: From Base Treatment to Anchoring and Fixing

During base treatment, the wall surface must be flat and clean. For concrete substrates, a bonding agent should be applied to enhance adhesion, while steel structure substrates require proper anti-rust treatment. During the measurement and layout stage, a total station is used for positioning and marking out installation control lines, with particular attention to verifying the spatial coordinates of irregular components. In the Dongguan Women and Children's Activity Center project, Qinglong successfully solved the positioning challenges of a double-curved GRC curtain wall using Grasshopper parametric modeling technology. Mechanical anchoring is the preferred fixing method, with M12-M16 expansion bolts selected according to component weight; each anchor should have a tensile load capacity of ≥5kN, with spacing controlled at 500-800mm. For large components, a temporary support system must be installed and can only be removed after the structural adhesive has fully cured (usually 72 hours).

GRC Joint Treatment and Quality Acceptance: Details Determine Project Quality

Joint treatment is a critical process in GRC installation, directly affecting waterproofing performance and appearance. Before caulking, debris must be cleaned from the joints, which are then filled with polyurethane sealant; the sealant joint width should be controlled at 8-12mm, with a depth of 1.5 times the width, and the sealant layer must be full and continuous during application. Qinglong's original “three-layer sealing process,” applied in a commercial complex project in Guangzhou, achieved IPX7 watertightness for the GRC curtain wall. Key checks during acceptance include: component verticality deviation ≤3mm/2m, joint height difference ≤2mm, and anchor point spacing deviation ≤10mm, along with on-site water spray tests and pull-out force testing to ensure an anchoring force of ≥0.5kN per square meter.

Qinglong's Full-Chain GRC Installation Advantages: Professional Assurance from Design to Maintenance

As a national high-tech enterprise, Qinglong Group deeply integrates detailed design, manufacturing, and installation to form a unique full-chain service capability. With its independently developed lightweight GRC component technology (20% lighter than traditional processes) combined with a modular installation system, construction efficiency can be improved by more than 30%. For after-sales maintenance, Qinglong has established a nationwide response mechanism, providing structural safety tracking services for up to 15 years. Whether for super high-rise exterior wall panels or complex curved decorations, Qinglong consistently follows the philosophy of “meticulousness and constant improvement,” providing customers with one-stop solutions from technical consultation to finished product delivery, allowing the aesthetic value and structural safety of GRC materials to be perfectly presented.