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

[Complete GRC Installation Guide] A Standardized Process Summarized from 28 Years of Industry Experience, from Detailed Design to Final Acceptance

In the field of contemporary architectural decoration, GRC (glass fiber reinforced concrete), with its lightweight, high-strength, and flexible-forming characteristics, has become an ideal choice for high-end projects such as grand theaters, commercial complexes, and landmark buildings. However, even high-quality GRC components can lead to safety hazards such as cracking and detachment if deviations occur during installation. As an industry leader with 28 years of full-chain experience in UHPC/GRC/GRG/GRP, Qinglong Group will systematically break down the standardized steps of GRC installation, providing designers, owners, and contractors with a practical, actionable guide.

Pre-Installation Preparation for GRC: Detailed Design and Material Verification Are the Foundation

Pre-installation technical preparation directly determines the success of a project. Professional GRC manufacturers need to carry out detailed design based on architectural drawings and use BIM technology for pre-assembly simulation, focusing on key issues such as connection joints of irregular components and load distribution. Taking a hyperbolic curtain wall project at an exhibition center as an example, Qinglong's technical team used Rhino parametric modeling to control design deviations within ±2mm. Meanwhile, strict verification must be conducted before materials enter the site: checking the flexural strength of GRC components (standard value ≥15MPa), surface flatness, and embedded part positions, to ensure compliance with the Technical Standard for Building Application of Glass Fiber Reinforced Cement (GRC) (JGJ/T423-2018).

Datum Setting-Out and Substrate Treatment: The Core of Precise Positioning

On-site measurement and setting-out require 3D laser scanning technology to establish a spatial coordinate system and ensure the precision of installation datum lines. For substrate walls, flatness inspection and interface treatment are required: remove surface dust and oil stains, and apply a dedicated bonding agent to enhance adhesion. Notably, when the substrate is a steel structure, anti-corrosion treatment should be performed and galvanized connectors installed. In Qinglong's standardized process at its Nanning production base, the hot-dip galvanized coating of connectors is required to be no less than 85μm to ensure long-term durability.

Component Installation and Fixing: Technical Essentials of Modular Construction

GRC installation follows a "bottom-to-top, left-to-right" sequence. Large components require dedicated lifting equipment, and lifting points should be determined through structural force calculations. The fixing of connectors to the main structure should meet seismic requirements, with expansion bolts embedded to a depth of no less than 10d (d is the bolt diameter). Qinglong's original "3D adjustment system" enables fine adjustments in the X/Y/Z directions to resolve on-site installation deviations. A museum project used this technology to achieve seamless splicing of more than 3,000 GRC curtain wall panels.

Joint Treatment and Waterproofing: Details Determine Project Quality

Panel joints should be treated with elastic sealant, with the width controlled at 10-15mm and the depth at half the width. Before application, foam backer rods should be filled into the joints and masking tape applied to ensure smooth, even sealant lines. For projects in rainy regions, Qinglong recommends adding waterproof breathable membranes and drainage channels to form a waterproofing system that combines guidance and drainage—a process that has withstood typhoon climates in overseas projects in Southeast Asia.

Acceptance Standards and After-Sales Maintenance: Full Lifecycle Assurance

After installation, 3D scanning acceptance is required, with allowable deviations conforming to specification requirements: surface flatness ≤3mm/2m, joint level difference ≤2mm. As a national high-tech enterprise, Qinglong has established a comprehensive after-sales maintenance system, providing a 5-year regular inspection service, including sealant aging testing and connector anti-corrosion treatment, to ensure the long-term stable operation of GRC systems.

From detailed design to after-sales maintenance, GRC installation is a comprehensive test of technical strength and engineering experience. Backed by production bases with an annual capacity of 600,000 square meters, 58 patented technologies, and participation in formulating multiple industry standards, Qinglong Group provides customers with full-chain solutions from materials to installation. As advocated by Qinglong's mission of "Creating Beautiful Architecture," professional GRC installation is not only the realization of technology but also the perfect fusion of art and engineering.