A Portland cement-based composite was made using a copolymer as one of the ingredients, and the potential of the composite for the production of non-structural masonry systems was evaluated. It was found that the composite had a similar performance to that of commercial cellular concretes. The results also indicated that the incorporation of fly ash into mortars decreased the thermal conductivity of the composite....
This paper investigates the effect sulphate exposure has on the thermal conductivity and mechanical strength of low density cement based foams, with and without microfiber reinforcement. This was done by exposing these cement foams to sulfphate over 90 days. The compressive strength and flexural toughness displayed a cyclic rise and fall for the plain sample, and the opposite for the reinforced sample. The thermal conductivity showed an initial rise, but then ...
Currently, there is no research into the accuracy of the transient plane source (TPS) method for measuring the thermal conductivity of thin films. The purpose of this study is to use numerical simulation to determine the accuracy of thermal conductivity measurements of thin films, with the TPS method. The values produced from the TPS method closely resembled those of the numerical simulation. The deviations from the numerical model were caused ...
Phase change materials (PCMs) are an attractive solution for reducing energy usage because of their efficient latent heat storage abilities. This paper examined chemical and physical properties of micro-PCMs before and after their integration with concrete samples. A Thermal Constants Analyser (TPS) measured the thermal conductivity of the PCM-concrete using the transient plane source (TPS) method. Results showed that overall, the thermal conductivity of the concrete was unchanged after the ...
The authors investigated the thermal conductivity and thermal diffusivity of two composite materials, marble and magnesium oxychloride cement. The transient plane source (TPS) technique was the method used to determine the thermal properties of the aforementioned composites. The thermal properties were studied in the temperature range from 30 to 150°C....
