Properties of mixtures of cement with various raw materials

International Conference Building Materials, Products and Technologies

土木建筑工程

Stank, T.^1 ; Neas, R.^1 ; Bohá, M.^1 ; Zezulová, A.^1 ; Rybová, A.^1

Research Institute for Building Materials, Hnvkovského 65, Brno

617 00, Czech Republic^1

关键词: Blended cement;    Calorimetric measurements;    Cement blends;    Heat evolution;    Hydration process;    Hydration products;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/379/1/012010/pdf
DOI  :  10.1088/1757-899X/379/1/012010

学科分类：土木及结构工程学

来源: IOP

【 摘 要 】

This paper presents possibility of utilization of selected Czech and Slovak industrial and natural raw materials in blended cement production. The cement blends were prepared using 75 wt. % of cement and 25 wt. % of a substituent. The paper is focused only on test results of the laboratory-prepared blended cements. The influence of admixture on hydration process was observed by calorimetric measurement of heat evolution during hydration process within 24 hours. The hydration products of water-cured samples for 28 days were determined by thermal analysis. Further properties, such as short and long-term compressive strengths and setting period, were determined.