How to Solve Color Variation Issues in UHPC Products?

In the field of modern architectural decoration, GRC (Glass Fiber Reinforced Concrete) has become the ideal choice for numerous high-end construction projects thanks to its advantages such as light weight, high strength, and flexible shaping. As a GRC manufacturer with 28 years of industry experience, Qinglong deeply understands the decisive role of production processes in product quality. This article provides a comprehensive analysis of the core production processes and key technical points of GRC manufacturers, offering a professional reference for designers, owners, and industry peers.

The first step in the GRC production process is the scientific proportioning and preparation of raw materials. High-quality GRC products depend on the precise combination of high-performance cement, alkali-resistant glass fiber, selected aggregates, and specialty admixtures. As an experienced GRC manufacturer, Qinglong adopts an automated batching system to ensure that the mixing uniformity error of raw materials is controlled within ±2%, safeguarding stable product performance at the source. Among these, the dosage and dispersion of alkali-resistant glass fiber are key technical points that directly affect the flexural strength of components (premium GRC can reach over 20MPa) and durability.

Mold making is the core link in GRC production, directly determining the shape accuracy and surface texture of products. GRC manufacturers typically choose wooden, steel, or GRP molds according to project requirements. In the production of complex-shaped components, Qinglong has introduced BIM technology and 3D scanning technology to achieve parametric design and precision machining of molds, with the minimum curvature radius controllable within 300mm, perfectly presenting artistic shapes such as hyperbolic surfaces and openwork reliefs. For European classical style architectural decorative lines (such as Roman columns and cornices), modular mold design is adopted, balancing production efficiency and detail fidelity.

The forming process is a key guarantee of the physical performance of GRC components, and the mainstream processes include the spraying method, premix casting method, and mesh laying method. As a technologically leading GRC manufacturer, Qinglong flexibly selects processes based on different product characteristics: the spraying method is suitable for large-area exterior wall cladding panels, achieving three-dimensional random fiber distribution and enhancing impact resistance; the premix casting method is used for complex special-shaped components, ensuring uniform bonding between concrete and fibers; the mesh laying method is applied to key load-bearing areas, enhancing structural strength through directional fiber arrangement. During the forming process, curing temperature and humidity are strictly controlled to ensure components meet the 28-day strength standard.

Surface treatment and quality inspection are the final checks before GRC products leave the factory. GRC manufacturers need to perform surface grinding, coloring, or stone-effect finishing according to design requirements. Qinglong uses automated sandblasting equipment and eco-friendly coatings to achieve a surface flatness error of ≤2mm/m while meeting environmental standards. In the quality inspection stage, in addition to conventional compressive and flexural strength tests, ultrasonic flaw detection and load testing are also introduced to ensure that every GRC component complies with the Technical Standard for Building Applications of Glass Fiber Reinforced Cement (GRC) (JGJ/T423-2018). For more industry information: add WeChat qlfsbl123

As the construction industry pursues personalization and green development, GRC production processes are evolving toward intelligence and customization. As a national-level high-tech enterprise, Qinglong continues to invest in R&D, combining 3D printing technology with traditional processes to explore the integrated production of super-large special-shaped components; at the same time, it optimizes formulations to reduce cement usage and enhance the low-carbon properties of GRC materials. In the future, GRC manufacturers will, through process innovation, further expand their application boundaries in fields such as commercial complexes, museums, and garden landscapes, contributing to the mission of "creating aesthetically beautiful architecture".