How Much Better Is the Thermal Insulation Performance of UHPC Panels Than Ordinary Concrete Panels? Qinglong UHPC Thermal Performance Analysis

UHPC panels have a thermal conductivity of 1.5-2.0W/(m·K), delivering 25%-40% better insulation performance than ordinary concrete (2.5-3.0W/(m·K)). This is attributed to their dense structure (porosity ≤3%) and low water-binder ratio (0.18-0.20). However, UHPC has a relatively high heat capacity, with a thermal inertia index D value ≥4.5, providing good heat storage performance.

In practical applications, a 20mm thick UHPC panel has a thermal resistance of 0.01m²·K/W. Although lower than dedicated insulation materials, its excellent insulation performance combined with its decorative function gives it comprehensive advantages in curtain wall systems. By adding a composite insulation layer (such as rock wool), integrated insulation and decorative panels can be produced, achieving a heat transfer coefficient K value of 0.5W/(m²·K) or below, meeting ultra-low energy building requirements.

Thermal Conductivity Comparison

UHPC thermal conductivity: 1.5-2.0; ordinary concrete: 2.5-3.0; these figures demonstrate the advantage.

Thermal Inertia Index Analysis

Thermal inertia D value ≥4.5; heat storage coefficient S ≥20; these indicators reflect temperature regulation performance.

Composite Insulation Performance

K value ≤0.5 with composite insulation layer; these properties meet energy-saving requirements.

Practical Application Results

Interior surface temperature is 3-5℃ lower in summer; these effects improve comfort.

Insulation performance is one of UHPC's advantages. Qinglong UHPC products deliver significant energy-saving effects.