Influence of polycarboxylate on thermal properties of cementitious solar thermal storage materials

摘要：

　　In the current study,influence of different contents of polycarboxylate on the mechanical and thermal properties of cementitious thermal storage materials was investigated.Compressive strength and thermal properties including thermal productivity,volume heat capacity and thermal expansion coefficient of hardened aluminate cement pastes with different contents of polycarboxylate were investigated to pursue the optimum material design for cementitious thermal energy storage system of solar parabolic trough power plant.The results show that polycarboxylate plays an important role on mechanical and thermal properties of cementitious thermal storage materials.After heat treatment at 350 ℃ for 6 h,compressive strength and thermal properties descended in a certain extent.XRD and FTIR were used to characterize the evolution of hydration products together.MIP was used to characterize pore distribution and porosity.

关键词： thermal energy storage cement polycarboxylate solid sensible heat

作者: H.W.Yuan Y.Shi C.H.Lu Z.Z.Xu Y.R.Ni X.H.Lan

作者单位: State key Laboratory of Materials-oriented Chemical Engineering, College of Materials Science and Engineering, Nanjing University of Technology, Nanjing, China

会议类型: 国际会议

会议名称: 2012 International Conference on Frontiers of Energy and Environmental Engineering(2012年第二届能源与环境工程前沿国际会议(ICFEEE2012))

会议地点: 香港

会议语种:英文

页码: 89-93

在线出版日期: 2012-12-01（万方平台首次上网日期，不代表论文的发表时间）