What Are the Production Processes of GRC Manufacturers: A Comprehensive Analysis and Discussion of Key Technologies

In the field of contemporary architectural decoration, material innovation and process refinement are at the core of shaping architectural aesthetics and functionality. As a dedicated player in the glass fiber reinforced concrete (GRC) industry, Qinglong Group, with 28 years of full-chain experience, deeply understands the decisive role of production processes in product quality. This article systematically analyzes the core production processes of GRC manufacturers, revealing the technical code from material proportioning to finished product delivery, providing professional reference for designers and owners.

GRC Production Process System: Precision Control from Raw Materials to Finished Products

The GRC production process is a deep integration of materials science and engineering technology, with its core lying in achieving lightweight, high-strength performance breakthroughs through the synergy of glass fibers and cement-based materials. The “four-step precision manufacturing method” adopted by Qinglong GRC has become an industry benchmark: first is the raw material pretreatment stage, where high-grade sulphoaluminate cement, alkali-resistant glass fibers (content ≥5%), and quartz sand are carefully selected, with three-stage screening ensuring aggregate uniformity; second is mix proportion optimization, relying on experimental data from the provincial R&D center to customize formulas for different application scenarios (e.g., exterior wall cladding panels require flexural strength above 20MPa, while landscape components require enhanced frost resistance); next is the forming process, using a dual-track mode of spray-up forming and premix casting—the former is suitable for complex curved shapes, while the latter ensures the structural stability of large-size panels; finally is the curing stage, where 28 days of constant temperature and humidity curing (temperature 20±2℃, humidity ≥95%) ensures a full hydration reaction and prevents later cracking.

Key Technological Breakthroughs: Innovative Practices in Digitalization and Eco-friendly Processes

Modern GRC production has upgraded from traditional manual operations to an intelligent manufacturing system. Three major breakthroughs by Qinglong in technological innovation deserve attention: first, the combination of parametric design and intelligent manufacturing—using Rhino+Grasshopper for 3D modeling, together with industrial robots to achieve precise casting of complex components, keeping the forming error of double-curved components within ±2mm; second, the application of green production processes—using recycled aggregates from industrial solid waste (at a dosage of up to 30%) and water-based release agents to achieve zero VOC emissions during production, a technology that won the Third Prize of the Guangdong Province Science and Technology Progress Award; third, the construction of a quality traceability system—by embedding an RFID chip in each component to record full-process data from material proportioning to curing cycles, providing data support for later maintenance. These technological innovations enable Qinglong GRC products to demonstrate outstanding performance advantages in large-scale projects such as airports and convention centers.

Process Selection and Project Matching: Technical Pathways Tailored to Requirements

Different architectural scenarios have differentiated requirements for GRC processes. For shaped decorative components of high-end buildings such as grand theaters and museums, Qinglong recommends the spray-up with vacuum dewatering process, which enables uniform distribution of glass fibers and achieves a surface flatness of 0.5mm/m; for standardized exterior wall panels of commercial complexes, automated assembly line production is adopted, with compression molding improving production efficiency and daily output reaching 300 square meters; while artistic sculptures in landscape settings mostly use a process combining hand lay-up with mechanical vibration, retaining the warmth of handcrafted art. Notably, regardless of the process used, Qinglong always complies with the Technical Standard for Building Applications of Glass Fiber Reinforced Cement (GRC) (JGJ/T423-2018) to ensure product performance and engineering safety.

As a participant in setting GRC industry standards, Qinglong Group knows well that process technology is the lifeline of its products. From raw material selection to finished product inspection, there are 28 quality control checkpoints; from the inheritance of traditional craftsmanship to continuous exploration of intelligent technology innovation, every advancement in the GRC production process embodies the ultimate pursuit of architectural aesthetics and engineering safety. In the future of architectural decoration, with the collaborative application of materials such as UHPC and GRG, GRC technology will continue to leverage its advantages in design freedom and cost-effectiveness, providing broader pathways for realizing beautiful architecture.