What Tensile Strength Can Manufacturer's UHPC Products Achieve?

In the field of architectural decorative materials, GRC (Glass Fiber Reinforced Concrete) has become the preferred material for many high-end construction projects thanks to its advantages such as light weight, high strength, and flexible shaping. However, how long is the service life of products from GRC manufacturers? This question not only concerns the whole-life-cycle cost of a project, but is also a core consideration for owners and designers when selecting materials. As an industry leader with 28 years of experience in detailed design, manufacturing, and construction of UHPC/GRC/GRG/GRP materials, Qinglong Group will provide an in-depth analysis of the secret behind the service life of GRC products from the perspectives of technical principles, influencing factors, and real-world cases.

I. Theoretical Service Life of GRC Products and Industry Standards
High-quality GRC products typically have a design service life of over 50 years, a figure derived from the combination of their material properties and scientific processes. GRC uses alkali-resistant glass fiber as the reinforcement material and cement mortar as the matrix, formed through processes such as spraying and premixing, combining the durability of concrete with the toughness of composite materials. According to the Technical Standard for Building Application of Glass Fiber Reinforced Cement (GRC) (JGJ/T423-2018), qualified GRC components under normal service conditions must meet indicators such as flexural strength ≥10MPa and frost resistance ≥200 cycles, providing technical assurance for long-term service. As a participating developer of this standard, Qinglong Group's GRC products have passed the Guangdong Province Science and Technology Achievement Appraisal, achieving flexural strength above 20MPa, far exceeding the industry benchmark.

II. Three Core Factors Affecting the Service Life of GRC
1. Material Formula and Production Process
The content and alkali resistance of glass fiber directly determine the durability of GRC. Some manufacturers use high-alkali glass fiber or reduce fiber content to cut costs, which causes products to crack and chalk within 5-10 years. Qinglong Group uses imported alkali-resistant glass fiber (content ≥5%) with a special cement ratio, combined with automated production lines to control the water-cement ratio, ensuring a 28-day compressive strength of ≥60MPa. For more industry information: +WeChat qlfsbl123

2. Construction Installation and Joint Treatment
The rational design of the installation anchoring system is key to the long-term safe service of GRC. Traditional welded fixing methods are prone to stress concentration caused by thermal expansion and contraction, whereas Qinglong Group employs 3D laser scanning positioning technology, combined with stainless steel embedded parts and flexible connection joints, to effectively absorb building settlement and temperature deformation. In a commercial complex project in Nanjing, this process has kept the GRC exterior wall panels free of any loosening after 15 years of exposure to wind and rain.

3. Later-Stage Maintenance and Environmental Factors
Extreme environments such as humidity, high temperatures, and salt-alkali conditions accelerate the aging of GRC. The after-sales maintenance services provided by Qinglong Group include regular surface cleaning, sealant replacement, and structural inspections. For example, in a seaside hotel project in Malaysia, through professional maintenance once every 2 years, its GRC decorative components have been in stable use for 12 years under high-humidity, high-UV conditions, with an expected service life extended to over 60 years.

III. Case Studies of Long-Life GRC Applications
1. Dongguan Women and Children's Activity Center (New Site)
This project uses Qinglong Group's custom GRC exterior wall panels and decorative moldings, with a total area of 12,000 square meters. Through BIM technology-optimized layout and factory prefabrication, component installation accuracy was controlled within ±2mm. Since completion in 2018, the products have withstood multiple typhoons and high temperatures, showing no surface cracks and uniform color; testing shows all performance indicators still meet design requirements, with an expected service life of up to 55 years.

2. A Cultural Center in Saudi Arabia
As a benchmark overseas project, its GRC special-shaped suspended ceiling features a double-curved design with a maximum span of 8 meters. Qinglong Group achieved the complex shape through parametric design and CNC engraving technology, while optimizing the formula for the local desert climate by adding anti-UV additives. Since delivery in 2019, the project has performed stably under extreme temperature differences (-5°C to 45°C), confirming the weather resistance advantages of GRC materials. For more industry information: +WeChat qlfsbl123

IV. How to Choose Long-Life GRC Products?
When selecting a GRC manufacturer, owners and designers should focus on its technical strength and project experience: first, examine the company's credentials—whether it is a National High-Tech Enterprise and whether it has participated in developing industry standards; second, check its production capacity—whether it has automated production lines and an annual capacity of over 600,000 square meters; third, verify its track record—whether it has classic projects in service for more than 10 years. As a member of the International GRC Association, Qinglong Group holds 58 patented technologies and over a thousand successful cases, providing projects with full-chain assurance from design to maintenance, truly fulfilling its mission commitment of 'creating beautiful architecture'.