Effect of CNT/CNF on Thermal and Mechanical Properties of Cement Mortars

Abstract

The research integrates both phase change materials (PCM) and carbon nanotube (CNT)/carbon nanofiber (CNF) into cement mortars to improve their thermal and mechanical performances. The PCM will improve the thermal storage capability of the cement mortars, while CNT/CNF can improve their mechanical strength and thermal conductivity. Experimental results show that addition of 1 wt. % CNT and CNF into the cement mortars with 5 wt.% PCM can increase their compressive strength by 23% and 8% respectively, and increase their thermal conductivity by 26% and 9% respectively.