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Study on the Phase Change Cement Based Material

Min Li1,2 and Long Hui 1
1. Jiangsu Key Laboratory for Construction Materials, Southeast University, Nanjing 211189, China
2. International Institute for Urban System Engineering, Southeast University, Nanjing 210096, China

Abstract—The hydrophilic of the phase change material (PCM) microcapsules was modified by surfactants (Sodium Dodecyl Sulfate, SDS). The microstructure of the cement paste with phase change microcapsules was observed by SEM. The result showed the modified PCM microcapsules affected the microstructure and the hydration heat. The cement strength declined after PCM microcapsules were added in the cement paste. With the increase of the content of the PCM microcapsules, the more the cement strength decreased. The modified PCM microcapsules make the mechanical properties of cement decreased less compared with the unmodified PCM microcapsules. The results showed that the phase change cement based material that we prepared have remarkable function of heat storage and decrease the peak temperature. 
 
Index Terms—microcapsule, phase change materials, cement paste

Cite: Min Li and Long Hui, "Study on the Phase Change Cement Based Material," International Journal of Structural and Civil Engineering Research, Vol. 5, No. 2, pp. 136-139, May 2016. doi: 10.18178/ijscer.5.2.136-139

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