Preparation of grouts using ash and slag from combustion of coal–water slurry fuel

Coal waste recycling is of high priority of this day. A promising and approved solution is the use of coal slurry to prepare coal–water suspensions. The obtained coal–water fuels can be used at thermal and water power plants, while ash and slag from fuel combustion is suitable for preparation of grouts. The mineral compositions of ash and slag from combustion of coal–water slurry fuel in special vortex burner are analyzed. High content of silicon oxide and aluminum oxide in combination with low content of carbon conditions efficient use of ash and slag in production of construction materials, first of all, grouts, widely applicable in mining, backfilling, etc. This article describes the studies of rheological properties and strength of grouts made of ash and slag. Recycling of coal slurry, ash and slag from coal preparation plants and coal-fired electric power plants can considerably abate adverse environmental impacts and improve economics.

Keywords: grout, ash and slag, coal–water slurry fuel, fine dispersed coal waste, filter cake, mineral composition, rheological properties, viscosity, strength.
For citation:

Volkov M. A., Grinyuk A. P., Murko V. I., Khyamyalyaynen V.A., Baev M. A. Preparation of grouts using ash and slag from combustion of coal–water slurry fuel. MIAB. Mining Inf. Anal. Bull. 2020;(8):97-104. [In Russ]. DOI: 10.25018/0236-1493-2020-8-0-97-104.


The study was supported by the Russian Foundation for Basic Research, Project No. 20-43-420016/20.

Issue number: 8
Year: 2020
Page number: 97-104
ISBN: 0236-1493
UDK: 622.257.1:622.273.218
DOI: 10.25018/0236-1493-2020-8-0-97-104
Article receipt date: 12.05.2020
Date of review receipt: 19.06.2020
Date of the editorial board′s decision on the article′s publishing: 20.07.2020
About authors:

M.A. Volkov1, Manager,
A.P. Grinyuk1, Deputy Manager for Production and Technical Policy,
V.I. Murko1, Dr. Sci. (Eng.), Professor, Deputy Manager for Science, e-mail:,
V.A. Khyamyalyaynen2, Dr. Sci. (Eng.), Professor, Head of Chair,
M.A. Baev2, Senior Lecturer,
1 Branch of Sibniiugleobogashchenie LLC, Prokopyevsk, Russia,
2 T.F. Gorbachev Kuzbass State Technical University, 650000, Kemerovo, Russia.


For contacts:

V.I. Murko, e-mail:


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