What Raw Materials Make Up UHPC and What Are the Approximate Proportions of Each Component? An Analysis of the Raw Material Composition and Mix Ratio Ranges of Ultra-High Performance Concrete

Against the backdrop of the growing integration of contemporary architectural aesthetics and functional requirements, GRC curtain walls have become an ideal choice for high-end building envelopes thanks to their lightweight, high-strength, and flexible forming characteristics. The integrated design of insulation systems, in turn, is the key path to achieving building energy efficiency goals. As an industry leader with 28 years of full-chain experience in UHPC/GRC/GRG/GRP materials, Qinglong Group will provide an in-depth analysis of the core points of integrated GRC curtain wall and insulation system construction, from technical principles to quality control, offering designers and owners solutions that combine safety, aesthetics, and energy efficiency.

GRC Curtain Wall and Insulation Integration: Collaborative Innovation in Building Envelope Technology

The integrated construction of GRC (Glass Fiber Reinforced Concrete) curtain walls and insulation systems essentially involves organically integrating the decorative surface layer with insulation functions through material compositing and structural optimization. Compared with the traditional separated approach of "curtain wall + insulation layer," the integrated solution can reduce construction procedures, lower the risk of inter-layer cavities, and improve the overall airtightness of the building. Qinglong's practice at its Nanning production base found that using specialized GRC insulation composite panels (such as those with built-in XPS or rock wool cores) can increase construction efficiency by 30% while meeting the heat transfer coefficient requirement of ≤1.0 W/(㎡·K) specified in the Design Standard for Energy Efficiency of Public Buildings.

Key Technical Path: From Material Selection to Construction Methods

The scientific matching of material systems is the foundation of integrated construction. Qinglong recommends prioritizing alkali-resistant glass fiber GRC panels with flexural strength ≥15MPa and water absorption ≤8%, paired with insulation core materials with thermal conductivity λ≤0.035 W/(m·K), achieving reliable bonding between the two through interface treatment technology. During the detailed design stage, BIM technology should be used for parametric modeling, focusing on optimizing insulation continuity at nodes such as internal and external corners and window sills to avoid thermal bridging. During construction, installation deviations of GRC panels must be strictly controlled (flatness ≤3mm/2m), and a dual anchoring method combining mechanical fixing and adhesive bonding should be adopted to ensure wind pressure resistance reaches Grade C3 or above.

Quality Control Key Points: Refined Management Throughout the Entire Process

Quality control of integrated systems must run through the entire cycle of design, production, and construction. During the production stage, Qinglong achieves precise proportioning of GRC panels (cement:sand:fiber=1:1.5:0.03) through automated production lines, with 28-day standard curing to ensure strength compliance; before on-site installation, 3D laser scanning positioning is required, with fine adjustment of panels achieved through adjustable connectors; during acceptance, key inspections include insulation layer thickness (allowable deviation ±5%), anchor point pull-out force (≥0.5kN), and sealant application quality. Notably, the Technical Standard for Building Application of Glass Fiber Reinforced Cement (GRC) (JGJ/T423-2018), compiled with Qinglong's participation, clearly stipulates that the fire rating of integrated systems should be no lower than Class B1, which is also one of the core indicators of quality control.

Industry Practice and Trends: From Technological Innovation to Value Creation

In a large convention and exhibition center project in Nanning, Qinglong adopted a GRC curtain wall and vacuum insulation panel (VIP) integrated system, achieving a 30% weight reduction and a 25% energy efficiency improvement in the building envelope. The processing precision of its double-curved GRC components was controlled within ±2mm, earning the "China Building Decoration Award." This case demonstrates the synergistic value of integrated technology in achieving both architectural aesthetics and energy efficiency goals. With the advancement of carbon neutrality policies, future GRC and insulation integrated systems will develop toward intelligence, achieving full life-cycle quality traceability through embedded RFID chips, while Qinglong's UHPC-GRC composite insulation panels under development are expected to extend system service life to more than 50 years.

As a national high-tech enterprise and a participant in the formulation of GRC industry standards, Qinglong has always upheld the mission of "creating aesthetically beautiful buildings," deeply integrating material innovation with engineering practice through 28 years of technical accumulation. The integrated construction of GRC curtain walls and insulation systems is not only a technological integration but also a practice of the concept of sustainable building development. Going forward, Qinglong will continue to focus on the R&D and application of UHPC/GRC/GRG/GRP materials, providing envelope solutions that combine artistic expressiveness and green performance for more landmark buildings.