Study of cement-based thermal storage materials with fly ash

Quanhai Fu; Huiwen Yuan; Yu Shi; Chunhua Lu; Zhongzi Xu; Yaru Ni

doi:10.1016/j.tca.2015.06.010

Study of cement-based thermal storage materials with fly ash

Quanhai Fu, Huiwen Yuan, Yu Shi, Chunhua Lu, Zhongzi Xu, Yaru Ni

College of Materials Science and Engineering

Nanjing Tech University

Research output: Contribution to journal › Article › peer-review

10 Scopus citations

Abstract

Abstract In this paper, we investigate mechanical and thermal properties of aluminate cementitious thermal energy storage material with fly ash. According to the specific requirement of application of thermal storage materials in solar thermal power generation, we selected 350°C and 900°C as the heat treatment temperatures. It can be seen that after heat treatment, the compressive strength and porosity of the cementitious materials are both optimized with the optimal fly ash amount of 15 wt%. Moreover, thermal conductivity and volume heat capacity of the composite pastes incorporated with fly ash are enhanced as well, which is more suitable for the application in solar energy storage. The microstructure, the evaluation of hydration products, and the pore distribution were obtained by SEM, XRD and MIP, respectively.

Original language	English
Article number	77257
Pages (from-to)	171-176
Number of pages	6
Journal	Thermochimica Acta
Volume	614
DOIs	https://doi.org/10.1016/j.tca.2015.06.010
State	Published - 30 Jun 2015

Keywords

Aluminate
Cementitious material
Fly ash
Thermal properties
Thermal storage material

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10.1016/j.tca.2015.06.010

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title = "Study of cement-based thermal storage materials with fly ash",

abstract = "Abstract In this paper, we investigate mechanical and thermal properties of aluminate cementitious thermal energy storage material with fly ash. According to the specific requirement of application of thermal storage materials in solar thermal power generation, we selected 350°C and 900°C as the heat treatment temperatures. It can be seen that after heat treatment, the compressive strength and porosity of the cementitious materials are both optimized with the optimal fly ash amount of 15 wt%. Moreover, thermal conductivity and volume heat capacity of the composite pastes incorporated with fly ash are enhanced as well, which is more suitable for the application in solar energy storage. The microstructure, the evaluation of hydration products, and the pore distribution were obtained by SEM, XRD and MIP, respectively.",

keywords = "Aluminate, Cementitious material, Fly ash, Thermal properties, Thermal storage material",

author = "Quanhai Fu and Huiwen Yuan and Yu Shi and Chunhua Lu and Zhongzi Xu and Yaru Ni",

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year = "2015",

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doi = "10.1016/j.tca.2015.06.010",

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TY - JOUR

T1 - Study of cement-based thermal storage materials with fly ash

AU - Fu, Quanhai

AU - Yuan, Huiwen

AU - Shi, Yu

AU - Lu, Chunhua

AU - Xu, Zhongzi

AU - Ni, Yaru

PY - 2015/6/30

Y1 - 2015/6/30

N2 - Abstract In this paper, we investigate mechanical and thermal properties of aluminate cementitious thermal energy storage material with fly ash. According to the specific requirement of application of thermal storage materials in solar thermal power generation, we selected 350°C and 900°C as the heat treatment temperatures. It can be seen that after heat treatment, the compressive strength and porosity of the cementitious materials are both optimized with the optimal fly ash amount of 15 wt%. Moreover, thermal conductivity and volume heat capacity of the composite pastes incorporated with fly ash are enhanced as well, which is more suitable for the application in solar energy storage. The microstructure, the evaluation of hydration products, and the pore distribution were obtained by SEM, XRD and MIP, respectively.

AB - Abstract In this paper, we investigate mechanical and thermal properties of aluminate cementitious thermal energy storage material with fly ash. According to the specific requirement of application of thermal storage materials in solar thermal power generation, we selected 350°C and 900°C as the heat treatment temperatures. It can be seen that after heat treatment, the compressive strength and porosity of the cementitious materials are both optimized with the optimal fly ash amount of 15 wt%. Moreover, thermal conductivity and volume heat capacity of the composite pastes incorporated with fly ash are enhanced as well, which is more suitable for the application in solar energy storage. The microstructure, the evaluation of hydration products, and the pore distribution were obtained by SEM, XRD and MIP, respectively.

KW - Aluminate

KW - Cementitious material

KW - Fly ash

KW - Thermal properties

KW - Thermal storage material

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U2 - 10.1016/j.tca.2015.06.010

DO - 10.1016/j.tca.2015.06.010

M3 - 文章

AN - SCOPUS:84934343976

SN - 0040-6031

VL - 614

SP - 171

EP - 176

JO - Thermochimica Acta

JF - Thermochimica Acta

M1 - 77257

ER -

Study of cement-based thermal storage materials with fly ash

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Keywords

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