|
Title |
Effect of Cementitious Composite on the Thermal and Mechanical Properties of Fiber-Reinforced Mortars for Thermal Energy Storage
|
|
Authors |
양인환(In-Hwan Yang) ; 김경철(Kyoung-Chul Kim) ; 최영철(Young-Cheol Choi) |
|
DOI |
http://dx.doi.org/10.4334/JKCI.2016.28.4.395 |
|
Keywords |
cement composite ; thermal energy ; residual compressive strength ; thermal conductivity ; specific heat |
|
Abstract |
The thermal and mechanical properties of fiber-reinforced mortars for thermal energy storage were investigated in this paper. The effect of the combination of different cementitious composite on the thermal and mechanical characteristics of fiberreinforced mortars was investigated. Experiments were performed to measure mechanical properties including compressive strength before and after thermal cycling and split tensile strength, and to measure thermal properties including thermal conductivity and specific heat. The results showed that the residual compressive strength of mixtures with OPC and graphite was greatest among the mixtures. Thermal conductivity of mixtures with alumina cement was greater than that of mixtures with OPC, indicating favor of alumina cement for charging and discharging in thermal energy storage system. The addition of zirconium into alumina cement increased specific heat of mixtures. Test results of this study could be used to provide information of material properties for thermal energy storage concrete.
|