The use of shale ash in dry mix construction materials

3rd International Conference on Innovative Materials, Structures and Technologies

Gulbe, L.^1 ; Setina, J.^2 ; Juhnevica, I.^2

SIA Sakret 'Ritvari', Rumbula, Stopinu novads

LV-2121, Latvia^1

Institute of Silicate Materials, Riga Technical University, 3/7 Paula Valdena Str., Riga

LV-1048, Latvia^2

关键词: Bulk density;    Cement mortars;    Cyclone ashes;    Dry mixes;    Mortar properties;    Salt solution;    Sulphates;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/251/1/012013/pdf
DOI  :  10.1088/1757-899X/251/1/012013

来源: IOP

【 摘 要 】

The research was made to determine the use of shale ash usage in dry mix construction materials by replacing part of cement amount. Cement mortar ZM produced by SIA Sakret and two types of shale ashes from Narva Power plant (cyclone ash and electrostatic precipitator ash) were used. Fresh mortar properties, hardened mortar bulk density, thermal conductivity (λ10, dry) (table value) were tested in mortar ZM samples and mortar samples in which 20% of the amount of cement was replaced by ash. Compressive strenght, frost resistance and resistance to sulphate salt solutions were checked. It was stated that the use of electrostatic precipitator ash had a little change of the material properties, but the cyclone ash significantly reduced the mechanical strength of the material.