What Are the Steps for GRC Installation? Qinglong GRC Installation Full-Process Standards and Practical Operation Specifications

GRC installation must follow the standard process of "construction preparation → substrate treatment → measurement and positioning → component hoisting → fixing and connection → joint treatment → finished product protection". Each step requires strict control of precision and quality to avoid installation deviations or safety hazards caused by improper operation. With 28 years of industry experience, Qinglong Group has established a standardized installation process to ensure uniform and controllable installation quality across all projects.

1. Construction Preparation: Preliminary Planning and Material Preparation

Technical disclosure and plan formulation: Organize the construction team to conduct technical disclosure, clarifying installation requirements, node detailing, and safety specifications; complex projects require dedicated installation plans. Before the double-curved-surface GRC installation at Qinglong's Guangxi New Media Center, three rounds of dedicated technical disclosure and simulation drills were carried out. Component and tool inspection: Check the model, dimensions, and quantity of GRC components to ensure there is no damage or deformation; check that hoisting equipment, connectors, measuring tools, etc. are intact and accurate. All Qinglong components are numbered and marked before leaving the factory, and the pass rate of secondary re-inspection before installation reaches 100%. Site environment preparation: Clean the installation site, erect scaffolding or suspended platforms, and keep construction passages clear; for work at height, safety protection measures must be in place. For Qinglong, work may only begin after the site cleaning and safety facility erection pass acceptance.

2. Core Installation Steps: Precise Execution and Quality Control

Substrate treatment: Clean the installation substrate (walls, steel structures, etc.) to ensure the surface is flat and firm; the substrate flatness deviation must be ≤3mm, with leveling treatment applied when necessary. After substrate treatment at Qinglong's Shenzhen Longhua Xiangshan Science and Technology Park project, the flatness inspection pass rate reached 100%. Measurement and positioning: Use laser levels, total stations, and other tools to snap installation datum lines and control lines, and mark component installation positions and connector fixing points. Qinglong adopts a "double-check system", requiring all measurement data to be reviewed and confirmed by two people. Component hoisting: Select appropriate hoisting equipment according to component weight and dimensions, hoist slowly to the installation position, and adjust the angle and position to ensure alignment with the datum lines. Qinglong assigns dedicated personnel to direct the hoisting of large components to avoid collision damage. Fixing and connection: Fix components to the substrate with connectors such as dry-hanging fittings and expansion bolts; the tightening torque must meet design requirements (standard stainless steel bolt torque ≥45N·m). At Qinglong's Guangzhou Dongzhu Shangdu project, multi-point hung GRC components all underwent pull-out force testing at connection points.

3. Follow-up Finishing Steps: Detail Treatment and Finished Product Protection

Joint treatment: Gaps between components are filled with special sealant; before filling, impurities in the gaps must be cleaned out to ensure the sealant is full and uniform with a flat surface. Qinglong uses weather-resistant sealant that withstands temperature changes and rain erosion, delivering excellent waterproof performance. Surface cleaning: Clean dust, stains, and installation marks from component surfaces, with touch-up painting or repair when necessary, to ensure a neat and attractive appearance. After construction, Qinglong conducts surface cleanliness acceptance with a pass rate of 99.5%. Finished product protection: Take protective measures to prevent components from collision and scratching, and forbid stacking heavy objects on component surfaces. Qinglong uses plastic film wrapping plus protective railing enclosures, achieving a finished product protection rate of 100%. Acceptance review: Carry out comprehensive acceptance of installation precision, firmness, and appearance quality; installation verticality deviation ≤2mm and flatness deviation ≤3mm. Qinglong's Shenzhen Pingshan High-tech Zone project passed installation acceptance in one attempt and was recognized by the Luban Award.

4. Adapted Process Adjustments for Different Scenarios

Exterior wall curtain wall installation: Add lightning protection connection and waterproofing test steps. For the installation of the 120,000-square-meter GRC roof at Qinglong's Hainan International Convention and Exhibition Center, lightning protection grounding tests and water-spray waterproofing tests were strictly executed. Interior decoration installation: Simplify the hoisting process and focus on finished product protection and environmental cleanliness. For interior GRC installation at Qinglong's Huawei Songshan Lake Terminal project, a dust-free construction mode was adopted to reduce impact on the surrounding environment. Landscape component installation: Strengthen foundation fixing to suit outdoor environments. For the GRC landscape pavilion installation at Qinglong's Yiyang County Xin River Ecological Restoration project, the foundation was fixed with embedded steel structures to ensure wind and seismic resistance.

Standardized execution of the GRC installation process is the core of ensuring quality and safety. Through comprehensive process control, professional technical support, and strict acceptance standards, Qinglong Group ensures that every installation step is compliant and controllable. Choosing a manufacturer with standardized installation capabilities can effectively avoid installation risks and enhance overall project quality.