Analysis of Protective Measures to Strengthen for GRC Curtain Walls in Coastal Areas

In the field of architectural curtain walls, the natural environment of coastal areas poses extremely rigorous tests on material performance. As an industry leader with 28 years of experience in detailed design, manufacturing, construction and installation, and after-sales maintenance of UHPC/GRC/GRG/GRP materials, Qinglong Group understands that the protection technology for GRC curtain walls in coastal environments not only concerns the lasting presentation of architectural aesthetics, but is also a core element in ensuring structural safety. This article systematically analyzes the full-cycle protection strategy for GRC curtain walls in coastal areas from four dimensions: material property optimization, structural design reinforcement, construction process upgrading, and maintenance system development.

Marine Climate Adaptation Improvement Technology for GRC Materials

The high-humidity, high-salinity environment of coastal areas is the main threat to GRC curtain wall materials. Drawing on 28 years of technical accumulation, Qinglong Group has developed a dedicated GRC formulation system for marine climates: by combining alkali-resistant glass fiber with low-alkalinity sulphoaluminate cement, the material's flexural strength is raised above 20MPa, while the incorporation of nano-scale silica fume and composite admixtures keeps the water absorption rate below 8% and reduces the chloride ion penetration coefficient by 40%. In accelerated aging tests at the Nanning production base, after 3,000 hours of salt spray testing in a simulated coastal environment, the formulation showed no obvious surface corrosion, with mechanical property retention exceeding 90%, far above industry standards.

Coordinated Wind Pressure Resistance and Seismic Solutions in Structural Design

Frequent typhoons present another major challenge for GRC curtain walls in coastal areas. Qinglong's technical team innovatively adopted a dual-engine model of "dynamic wind pressure load simulation + BIM parametric design", calculating wind pressure coefficients for curtain walls at different heights using fluid dynamics software and optimizing the anchoring system design in accordance with the Technical Standard for Application of Glass Fiber Reinforced Cement (GRC) in Buildings (JGJ/T423-2018). In a waterfront commercial complex project in Shenzhen, the stainless steel back-bolted connection joints used can withstand 1.5kPa wind pressure loads and 0.2g seismic acceleration, delivering 60% higher pull-out resistance than traditional hanging fixture systems, and successfully withstood Severe Typhoon Saola in 2023.

Anti-Corrosion and Precision Control Systems in Construction Processes

On-site construction quality directly determines the protective performance of GRC curtain walls. Qinglong has established a refined construction system of "factory prefabrication + on-site assembly": all GRC components undergo surface fluorocarbon coating treatment (dry film thickness ≥60μm) at the Guangxi production base, while 3D laser scanning positioning technology keeps installation errors within ≤2mm. For the high-humidity coastal environment, an innovative "dry-wet separation" construction method was developed, achieving water tightness at the 1000Pa standard through a dual waterproofing design of prefabricated drainage channels and sealant. In a cultural tourism project in Zhuhai, this process reduced the curtain wall system leakage rate to below 0.1%, far below the industry average.

Full Life-Cycle Intelligent Maintenance Solutions

Long-term protection is inseparable from a scientific maintenance system. Leveraging the technical strength of its national-level R&D center, Qinglong has built a maintenance model of "IoT + professional inspection": RFID chips embedded in GRC components provide unique identification, while sensors monitor temperature deformation and anchoring force data in real time; drawing on the Coastal GRC Curtain Wall Maintenance Manual formed from 28 years of engineering experience, full-cycle records are established with quarterly visual inspections and structural testing every three years. As Vice Chairman Unit of the China GRC Association, Qinglong participated in formulating the Technical Code for GRC Curtain Wall Maintenance, which has become an industry maintenance standard and provides technical support for more than 300 coastal projects nationwide.

From material R&D to engineering practice, Qinglong Group has always upheld the mission of "Creating Beautiful Architecture", transforming 28 years of full-chain experience into systematic protection solutions for GRC curtain walls in coastal areas. Whether it is the composite application of Ultra-High Performance Concrete (UHPC) with GRC, or the coordinated protection of Glass Fiber Reinforced Plastic (GRP) at special locations, these reflect Qinglong's technological innovation strength as a national "Specialized, Refined, Distinctive, and Innovative" enterprise. Guided by the vision of "becoming a world-class leading manufacturer of UHPC/GRC/GRG/GRP", Qinglong will continue to provide coastal buildings with protection solutions that combine aesthetic value with structural safety, keeping every building timeless and ever-new through the baptism of sea winds.