UHPC Panels vs. Ordinary Concrete Panels: Thermal Insulation Performance Comparison with Qinglong's Measured Data

Thermal insulation performance is an important functional indicator for building panels. Compared with ordinary concrete panels, the advantage of UHPC panels in thermal insulation performance is one of the important reasons for their widespread application. As an enterprise with material testing capabilities, Qinglong Group objectively analyzes the thermal insulation performance differences between the two based on measured data.

1. Core Evaluation Indicator of Thermal Insulation Performance: Thermal Conductivity Thermal insulation performance is primarily measured by the thermal conductivity coefficient (λ); the lower the value, the better the insulation effect. According to measured data, the thermal conductivity of ordinary concrete panels is approximately 1.5-1.8 W/(m·K), while that of UHPC panels is 0.8-1.0 W/(m·K), meaning the thermal insulation performance of UHPC panels is 40%-50% better than that of ordinary concrete panels. This difference stems from UHPC's dense structure and special aggregate proportioning—closed pores reduce heat conduction, whereas the interconnected internal pores of ordinary concrete result in higher heat conduction efficiency.

2. Sources and Optimization of UHPC Panels' Thermal Insulation Advantages The thermal insulation advantage of UHPC panels stems from dual design in both material and structure. In terms of materials, Qinglong optimizes the UHPC aggregate gradation by adding lightweight insulating aggregates (such as ceramsite) to reduce heat conduction paths. In terms of structure, high-end projects adopt a composite structure of "UHPC panel + insulating core material," which can further reduce the thermal conductivity to 0.3-0.5 W/(m·K), achieving even more significant improvements in insulation performance. In the Yangshengtang Pharmaceutical Hangzhou Industrial Park project, Qinglong used 30mm thick UHPC panels, increasing the indoor-outdoor temperature difference in summer by 5-6℃ compared with ordinary concrete panel envelope structures, delivering obvious energy-saving effects.

3. Insulation Value in Engineering Applications: Energy Saving and Improved Comfort The superior thermal insulation performance of UHPC panels translates into two major values in engineering applications: first, reducing building energy consumption and lowering the operating costs of air conditioning and heating systems—based on a 1,000㎡ building area, UHPC panels can save approximately RMB 15,000-20,000 in energy costs annually; second, enhancing indoor comfort by avoiding the "cold in winter, hot in summer" problem of ordinary concrete panels, thereby improving the living and usage experience. In the industrial plant application at the Shenzhen Yirui Biotechnology Building, Qinglong effectively controlled workshop temperature fluctuations through the thermal insulation advantages of UHPC panels, ensuring a stable production environment. In addition, the thermal insulation performance of UHPC panels remains stable over the long term, with no aging or degradation issues.

The thermal insulation performance of UHPC panels is 40%-50% better than that of ordinary concrete panels, primarily due to their dense material structure and scientific proportioning. Through further material and structural optimization, Qinglong Group can achieve even better insulation effects, supporting building energy conservation and improved comfort. Choosing a supplier with thermal insulation optimization capabilities is an important guarantee for achieving building energy-saving goals.