How UHPC Exterior Walls Achieve Integrated Thermal Insulation: Energy-Saving Innovation and Qinglong Group's Composite System Technology

UHPC exterior walls achieve integrated thermal insulation through the path of "material compositing, structural innovation, and functional integration," organically combining the decorative surface layer, insulation layer, and structural layer. The "UHPC panel + insulation core + back panel" sandwich system developed by Qinglong Group achieves a heat transfer coefficient (K value) of 0.30-0.45 W/(m²·K), combining thermal insulation, decoration, and load-bearing functions. In the Nanning Wuxiang China Resources MixC project, we used composite panels consisting of a 20mm-thick UHPC surface layer + 100mm-thick rock wool + 10mm-thick calcium silicate back panel to achieve integrated insulation and decoration construction, shortening the construction period by 40% and reducing overall cost by 15% compared with traditional external wall external insulation systems. Integration is an inevitable trend of building industrialization.

Composite Structural Design Is the Technical Core

Thermal-break anchors (thermal conductivity ≤0.06 W/m·K) connect the inner and outer leaves to eliminate cold bridges. The insulation layer is laid continuously, with staggered joints at overlaps. Our patented "butterfly anchor" reduces thermal bridging effects by 80% while ensuring a pull-out force ≥6kN.

Material Selection and Performance Balance

Rock wool (Class A fire rating) or polyurethane (high thermal conductivity) is preferred for the insulation core. The thickness of the UHPC surface layer is determined by wind pressure calculations (typically 15-25mm). Through finite element thermal analysis, thickness ratios are optimized to meet the 65% energy-saving standard.

Production Processes Ensure Stable Quality

A continuous production line enables automated gluing, insulation laying, laminating, pressing (0.3-0.5MPa), and curing (80°C × 8h). We require panel edge flatness ≤1mm/2m to ensure seamless installation.

Installation Systems Simplify the Construction Process

Specialized hangers enable dry construction, and panel joints use sealant + airtight tape for dual waterproofing. In a passive house project in Shenzhen, our integrated panels achieved an installation efficiency of 120㎡/worker-day, three times that of traditional methods.

Integrated insulation elevates the value of the UHPC system. Through technological innovation, Qinglong Group provides customers with comprehensive solutions that are energy-efficient, aesthetic, and efficient.