Research on Prevention Strategies and Technical Measures for Freeze-Thaw Damage of GRC Exterior Walls in Severe Cold Regions

In the construction field of severe cold regions, freeze-thaw damage to GRC exterior walls has long been a challenge plaguing the industry. As an industry leader with 28 years of full-chain experience in UHPC/GRC/GRG/GRP materials—covering detailed design, manufacturing, construction and installation, and after-sales maintenance—Qinglong Group deeply understands the importance of solving this problem for improving building quality and durability. This article provides designers and owners with professional solutions to GRC exterior wall freeze-thaw damage from two aspects: prevention strategies and technical measures.

The causes of freeze-thaw damage to GRC exterior walls in severe cold regions are complex, mainly and closely related to material performance, environmental factors, and construction quality. GRC, or glass fiber reinforced concrete, if not properly protected in low-temperature environments, is highly prone to cracking, spalling, and other problems caused by the expansion of freezing water. Qinglong Group, as a new-type decorative building materials enterprise and a manufacturer of customized UHPC/GRC/GRG/GRP products, has accumulated rich experience in addressing such problems.

To prevent freeze-thaw damage to GRC exterior walls in severe cold regions, we must first start from the material source. High-quality GRC materials are the foundation. For the GRC products produced by Qinglong Group, the quality of raw materials such as cement and glass fibers is strictly controlled; by optimizing mix proportions and production processes, the products achieve excellent frost resistance and durability. Meanwhile, the company holds multiple invention patents and utility model patents, and has participated in formulating the Technical Standard for Building Application of Glass Fiber Reinforced Cement (GRC) and several other national and industry standards, providing a strong guarantee for the quality of GRC materials.

In the detailed design phase, addressing the characteristics of severe cold regions, Qinglong Group's professional design team carries out special structural design. For example, drainage systems are rationally arranged to prevent water from accumulating inside GRC exterior walls, and integrated thermal insulation design is adopted to reduce the impact of temperature stress on GRC components. The company's BIM technology and parametric design capabilities can accurately simulate the stress conditions of GRC exterior walls under different environmental conditions, providing a scientific basis for design optimization.

Quality control during construction and installation is equally critical. Qinglong Group holds multiple qualifications, including Grade II professional contracting for building curtain wall engineering, and its construction team is highly experienced. When constructing in severe cold regions, operations strictly follow construction specifications to ensure that GRC components are installed firmly and reliably with tightly sealed joints. At the same time, attention is paid to controlling the temperature and humidity of the construction environment, avoiding construction under harsh conditions, so as to guarantee the construction quality of GRC exterior walls.

After-sales maintenance is an important link in preventing freeze-thaw damage to GRC exterior walls. Qinglong Group has established a comprehensive product after-sales service system, conducting regular inspections and maintenance on completed GRC exterior wall projects. Potential problems, such as crack repair and waterproofing treatment, are identified and addressed in a timely manner to extend the service life of GRC exterior walls. The company's after-sales team can respond quickly to customer needs and provide customers with professional service support.

After more than 20 years of development, Qinglong Group has always adhered to the philosophy of professional innovation and environmental protection, and is a National High-Tech Enterprise and a National Specialized, Refined, Distinctive, and Innovative Enterprise. The company's GRC products are widely used in real estate, municipal subway, utility tunnels, bridges, airports, and other fields, and are exported to overseas markets such as Malaysia, Vietnam, and Singapore. In numerous projects in severe cold regions, Qinglong Group's GRC exterior walls have won high recognition and praise from customers for their excellent performance and reliable quality. In the future, Qinglong Group will continue to focus on the development of UHPC/GRC/GRG/GRP materials, integrate resources, grow bigger and stronger, and strive to become an outstanding leading UHPC/GRC/GRG/GRP manufacturer in the world, contributing to the creation of beautiful architecture.