How does thermal energy storage aggregate compare to control mortar?

The thermal behavior of the mortar containing thermal energy storage aggregate shows decrease in maximum temperature and temperature amplitude in comparison to control mortar. Average temperature fluctuation range of mortar having thermal energy storage aggregate was 10.8°C less in comparison to control mortar.

How does the thermal behavior of cement mortar affect indoor temperature?

The thermal behavior of the cement mortar plays a significant role in regulating the indoor temperature of the building. Several efforts have been made in recent years to improve the thermal properties of the cement mortar and cement plaster (Benazzouk et al., 2008, Du et al., 2021).

How do building elements store thermal energy?

To overcome these drawbacks of sensible thermal energy storage, the building elements are embedded with PCM. PCM stores thermal energy in latent form. In latent heat storage, the material stores thermal energy by undergoing phase transformation at an almost constant temperature.

How to increase thermal energy storage capacity of building elements?

The combination of building materials with PCMs is an efficient way to increase the thermal energy storage capacity of construction elements. Thereby, wallboards, floors, roof, concrete and other parts are integrated with PCMs in order to improve the thermal performance of the building.

Does the Order of material layers improve thermal energy storage performance?

The results revealed that optimizing the order of material layers can significantly improves the thermal energy storage performance of the wallboard in comparison to increasing thickness of the PCM layer.The maximum indoor temperature reduction is 3.1% and thermal amplitude reduction is 31%.

Do mortars need a high mechanical strength?

For such a reason, the research has moved towards the investigation on mortars for interior and/or exterior coatings, where high values of mechanical strength are not required.