Study on Thermal Stability and High Temperature Gas Production of Silicate Concrete

2018 International Conference on Advanced Materials, Intelligent Manufacturing and Automation

材料科学;机械制造;运输工程

Li, Liang^1 ; Zhang, Jijun^1 ; Zheng, Junfang^1 ; Zhang, Dongliang^1 ; Yuan, Xiaoning^1 ; Mao, Xianhe^1 ; Xu, Ying^1

Northwest Institute of Nuclear Technology, Xi'an

710024, China^1

关键词: Elevated temperature;    Gas chromatographs;    Gas compositions;    Gas extractions;    Gas productions;    High temperature;    High temperature gas;    Thermal analyzers;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/382/2/022076/pdf
DOI  :  10.1088/1757-899X/382/2/022076

学科分类：材料科学（综合）

来源: IOP

【 摘 要 】

In this paper, the thermal stability of ordinary silicate concrete is characterized by the synchronous thermal analyzer. Through the design of the heating gas extraction device, the gas production at elevated temperature of concrete is collected, and the gas composition and content were analyzed by gas chromatograph. The results show that the thermal loss of the concrete after drying is concentrated at 350∼700 °C, the weight loss is about 6%, the gas production at high temperature is mainly CO2, accompanied by a small amount of CO, SO2 and H2O, and the rate of gas production of concrete is about 33L/kg.