How to Achieve Texture Effects on UHPC Shaped Surfaces Through Molds: Process Principles and Key Technologies

In the artistic expression of building envelopes, UHPC (Ultra-High Performance Concrete), with its outstanding mechanical properties and formability potential, is becoming the ideal medium for designers to achieve complex texture effects. As the "artistic bridge" for texture transfer, the precision of mold craftsmanship directly determines the surface quality of UHPC. As an industry player with 28 years of deep expertise in UHPC/GRC/GRG/GRP materials, Qinglong Group will analyze how to achieve ultimate texture effects on UHPC surfaces through molds, from the perspectives of mold craftsmanship principles and key technologies.

1. Craftsmanship Principles of UHPC Texture Molds: The Dialectical Relationship Between Material and Texture

The ultra-high density and flowability of UHPC allow every texture on the mold surface to be precisely replicated. The core of the craftsmanship lies in "reverse engineering"—converting digital textures into physical forms through the pre-design of the mold surface. Through practice at its Nanning production base, Qinglong found that the interfacial interaction mechanism between the mold and UHPC directly affects texture fidelity: when the mold surface roughness matches the UHPC particle grading, texture precision at the 0.1mm level can be achieved. This finding has been applied to the curved surface texturing of award-winning projects such as the Dongguan Women and Children's Activity Center.

2. Key Technological Breakthroughs in Texture Molds: Full-Chain Control from Design to Manufacturing

In selecting mold base materials, Qinglong adopts a "material matching" strategy: high-precision steel molds (surface finish up to Ra0.8) are used for fine textures, while flexible silicone molds (resilience rate ≤2%) are chosen for bionic textures. In the Nanjing East Road Century Plaza renovation project, gradient textures on translucent UHPC panels were achieved through composite mold technology, with the key lying in controlling the angle error of mold block design within ±0.5°.

The deep application of digital technology has reconstructed the path to texture realization. Qinglong's R&D center uses Rhino and Grasshopper parametric platforms to convert designers' hand-drawn textures into machinable CNC mold codes, combined with 3D scanning technology for reverse inspection of mold precision. This digital workflow raised the texture repetition precision of the UHPC facade of a commercial complex in Guangzhou to 99.2%, far exceeding the industry average.

3. Mold Solutions from a Full Lifecycle Perspective

As a National High-Tech Enterprise, Qinglong has always emphasized the balance between economy and environmental friendliness in molds. Through modular mold design, a single mold can be reused more than 30 times, reducing mold costs by 40% compared with traditional processes. In a landmark project in Saudi Arabia, biodegradable composite material molds were adopted, which both met complex texture requirements and complied with local environmental regulations, demonstrating the international adaptability of UHPC mold technology.

From the curved relief of grand theaters to the stone-like textures of commercial complexes, UHPC texture mold technology is redefining the artistic boundaries of building envelopes. Backed by 28 years of full-chain experience, Qinglong Group will continue to explore collaborative innovation between mold craftsmanship and materials science, providing designers with complete texture realization solutions from concept to implementation, and supporting the fulfillment of its mission of "Creating Aesthetic Architecture." In the future, with the integration of new technologies such as 3D-printed molds, the expressiveness of UHPC surface textures will achieve even greater breakthroughs.