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The goal of this study was to obtain information on thermal properties of three types of concrete over a wide temperature range (20°C to 800°C). The three types of concrete are: high-strength concrete (HSC), self-consolidating concrete (SCC) and fly-ash concrete (FAC). The thermal data collected included thermal conductivity, specific heat and thermal expansion of the concrete samples using the TPS method. The effect of steel, propylene and other hybrid fibers ...
The thermal and mechanical properties of 4 different types of concrete were studied in the temperature range of 20°C to 800°C. Thermal properties studied include: thermal conductivity, specific heat and thermal expansion. Data generated from the testing of these samples using the TPS method were used in order to generate simplified expressions of thermal and mechanical properties as a function of time....
Outlines the problems with measuring the thermal conductivity of low-density insulating materials and addresses this by proposing a three layer method for the accurate measurement of thermal conductivity. This method involves a sample being placed between two conducting brass plates (one heated via hot plate) and monitoring the temperatures of these two plates as the experiment progresses. Mathematical equations are derived in order to make an accurate model for thermal ...
This paper highlights the use of the transient plane source (TPS) technique to test the thermal properties of porous building materials, such as autoclaved aerated concrete and calcium silicate boards reinforced by cellulose fibers. Transient methods relay multiple thermophysical parameters, such as thermal diffusivity, specific heat, and thermal conductivity, all in one measurement – a highly sought after trait. Measurements were performed to compare the transient method to other methods of ...
