Join us at the International Thermal Conductivity Conference (ITCC) and the International Thermal Expansion Symposium (ITES).
With little information available about the thermal conductivity of sprayed concrete, this article investigates sprayed concrete aging from five hours after casting to 20 days. Thermal conductivity was measured. Thermal conductivity was found to be higher at an early age and decreased as the concrete aged. Thermal conductivity is found to have an exponential relationship with density, regardless of mix constituents....
The expanding production of polymeric materials is causing plastic waste to become a growing concern. This study aimed to fabricate cement and mortar composites that contained plastic in an attempt to extend the life of non-reusable plastics. The thermal conductivity of the composite material was measured using the transient plane source (TPS) technique. Results showed that as expected, thermal conductivity decreased as the plastic content in cement and mortar composites ...
Ice surfaces dictate energy usage in skating rinks because they are the largest heat exchangers in the building. This study aimed to improve the concrete material used in ice rinks to maximize the performance of their refrigeration systems. The TPS method measured the thermal conductivity and thermal diffusivity of the improved concrete using the Transient Plane Source (TPS) method. Results indicated that adding iron ore to the concrete might improve ...
It is important to understand the thermophysical properties of concrete when it is quickly heated, such as at the Cape Canaveral Air Force Station. In this experiment, the transient plane source (TPS) method measured the thermal conductivity, thermal diffusivity, and specific heat of four concrete samples taken from the Launch Complex 17 at Cape Canaveral. The samples were measured from room temperature up to 300 °C over intervals of 50 °C. Results showed ...
When testing the thermal conductivity of moist specimens, an analysis of heat and mass transfer must be conducted. Thermal conductivity measurements require a temperature gradient within the sample, however when measuring moist materials, the temperature gradient causes the moisture to be transported and dispersed within the material. During testing, phase changes can also be experienced, which may lead to latent heat. For this experiment, the thermal properties of moist autoclaved ...
