Analysis of Texture Implementation Methods and Key Technical Points for Biomimetic GRC Shaping

Analysis of Texture Implementation Methods and Technical Key Points for Biomimetic GRC Forms

When a building envelope breathes with natural texture, every line becomes a profound dialogue between material and art — biomimetic GRC replicates the beauty of nature through technology, redefining the vitality of architectural surfaces.

In contemporary architectural design, biomimetic aesthetics is becoming the core language for shaping architectural identity. As a technology leader in the field of new decorative building materials, Qinglong Group, drawing on 28 years of full-chain experience in UHPC/GRC/GRG/GRP materials, has deeply explored the texture realization techniques of biomimetic GRC forms, providing solutions that combine artistic expressiveness with engineering reliability for high-end settings such as grand theaters, commercial complexes, and landmark buildings. This article systematically analyzes the technical challenges and implementation paths of biomimetic GRC textures, offering designers and project owners a full-process technical reference from design to completion.

### I. Material Properties and Design Logic of Biomimetic GRC Textures

The core of biomimetic GRC forms lies in simulating the texture details of natural organisms or geological forms through material craftsmanship, based on the inherent advantages of GRC material (Glass Fiber Reinforced Concrete): the composite structure of glass fibers and cement matrix gives the material a flexural strength above 20MPa while maintaining a flexible forming thickness of 0.1-200mm, satisfying structural safety while providing ample shaping space for texture replication. During the detailed design stage, Qinglong Group builds parametric models based on the target biomimetic objects (such as bark textures, rock faults, water ripples, etc.), converting natural textures into quantifiable mold machining data through Rhino and Grasshopper software, ensuring a texture fidelity rate above 95%.

### II. Four Key Process Technologies for Texture Forming

**1. Mold Making: The First Guarantee of Texture Precision** Using a composite process of CNC engraving and 3D printing, mold base materials are selected according to different texture characteristics: shallow relief textures (such as leaf veins and water patterns) use high-density PU molds to ensure 0.1mm-level detail clarity; deep-texture forms (such as honeycomb structures and scale patterns) use fiberglass molds, achieving precise forming of complex cavities through layered curing technology. Qinglong's Guangxi production base is equipped with 5-axis linkage machining centers capable of completing the integral engraving of oversized molds up to 3m×6m in one pass, effectively avoiding texture misalignment at joints.

**2. Material Mix Ratio: Core Control of Texture Expressiveness** By adjusting the sand-cement ratio, fiber content, and additive formulations of cement-based materials, precise control of texture quality is achieved. For example, when simulating sandstone textures, quartz sand with a particle size of 1-3mm is combined with low-alkali cement, together with alkali-resistant glass fibers at 1.5% volume content, giving the formed surface a natural grainy feel; biomimetic wood grain requires adding iron oxide-based color powder to the slurry, creating gradient texture layers through layered pouring technology. The special retarder developed by Qinglong's laboratory can extend the initial setting time to 45 minutes, providing an ample operating window for texture detail processing.

**3. Forming Process: The Path to Achieving Texture Dimensionality** Differentiated forming methods are adopted for different texture characteristics: flat textures use vacuum casting to ensure the slurry evenly fills the mold texture; three-dimensional reliefs combine spray molding with manual shaping, with fiber mortar precisely sprayed into the mold cavity through high-pressure spray guns, followed by craftsmen's hand-carving of texture details. Qinglong's original "two-stage curing method" (24-hour low-temperature static curing + 7-day moist-heat curing) brings the component surface hardness to Mohs 6 or above, effectively preventing texture wear.

**4. Surface Treatment: The Final Presentation of Natural Texture** Multiple fine treatments are performed after demolding: high-pressure water jets (pressure controlled at 0.8-1.2MPa) are used to wash away surface laitance, highlighting the relief of textures; acid etching is applied to stone-imitating texture components to create a natural weathering effect; for metallic-textured biomimetic forms, nano-level coating technology achieves control of surface gloss. Qinglong's biomimetic GRC components have passed 1000-hour salt spray tests, with texture color retention of over 8 years.

### III. Technical Challenges and Solutions in Engineering Applications

In actual projects, biomimetic GRC forms often face three major challenges: texture consistency control of oversized components, texture continuity on complex curved surfaces, and the impact of installation precision on texture integrity. Qinglong addresses these by combining BIM technology with modular construction: full-scale 3D models are established during the detailed design stage, and complex forms are broken down into standardized modules, increasing mold reuse by 40%; on-site installation uses 3D laser scanning positioning with errors controlled within ±2mm, avoiding texture misalignment caused by installation deviations. In a cultural center project in Nanjing, Qinglong successfully realized a 36-meter-high biomimetic tree-shaped GRC curtain wall, with continuous bark texture splicing errors of only 0.5mm, making it a local landmark building.

As a national high-tech enterprise and a participant in the formulation of GRC industry standards, Qinglong Group has always upheld the mission of "creating aesthetically beautiful buildings," deeply integrating material technology with artistic aesthetics. Biomimetic GRC forms are not only a technical breakthrough but also a bridge for dialogue between architecture and nature. In the future, with the development of UHPC and GRC composite technology, we will achieve lighter, more durable, and more expressive biomimetic texture effects, providing unlimited possibilities for building envelope design. Choose Qinglong for full-chain assurance from design to maintenance, making every biomimetic form an artistic work that stands the test of time.