PSI - Issue 70

R. Greesan et al. / Procedia Structural Integrity 70 (2025) 666–673

672

Fig.5 FTIR of PCM Composite

3.4. Compressive Strength The strength parameters are studied with compression testing machine and the mortar cubes are subjected to find the compressive strength with various percentage levels of PCM and it is shown in Fig.6. Percentage level of PCM was taken in X and the compressive strength values are represented in Y axis to monitor the strength values. The casting process of Ceno PCM mortar samples are done at 10% interval and for getting the accuracy of optimum value, the trial mix of 15% and 17.5% are also casted. Among those trial mixes, the higher result of 18.5N/mm² and 22.9 N/mm² was observed as initial and final strength values at the level of 17.5 % of Ceno-PCM when compared to others. For all the composition of Ceno PCM, the increase in compressive strength was achieved with proper curing time of 7days for initial strength deterninationa and 28days for final compressive strength. Whereas furthermore increase in value of PCM may give reverse effect, beyond the optimum value.

22.9

22.7

10 15 20 25

22.1

21.75

19.45

18.75

18.65

18

17.7

15.45

0 5

0%

10% 15% 17.50% 20% Initial Strength (N/mm²) Final Strength (N/mm²)

Fig.6 Compressive Strength of Conventional Vs Ceno PCM Mortar

4. Conclusion In all the literature studies the use of Phase Change Material may results in reduction of energy usage in building components. In our research PCM experimentation was concluded with following major findings. • Implementation of PCM into the construction sector was achieved with synthesis technique.The experimental work was conducted using an adaptable synthesis method called ultrasonication, which involves combining paraffin, Cenosphere, and TiO2. • The characterization results from SEM, XRD, and FTIR analyses confirm that the mixture is correctly