scholarly journals Experimental Study on Light Concrete Properties Using Bottom Ash of Thermal Power Stations

2018 ◽  
Vol 7 (3.2) ◽  
pp. 1
Author(s):  
Oksana Demchenko ◽  
Volodymyr Shulgin ◽  
Ruslan Petrash

This paper presents the most optimal compositions of light concrete utilizing bottom ash for manufacturing the energy efficient wall products. Bottom ash usage as a filler instead of quartz sand acts as utilization of wastes which has a positive impact on ecology. It’s been experimentally investigated the influence of the amount of cement and water on strength, density, water consumption, and thermal conductivity of light concrete manufactured using the bottom ash from thermal electrical stations as a filler. Using the STATISTICA 12 software there were obtained the precise values of coefficients that allow achieving the maximum strength. It’s been manufactured the energy efficient wall blocks based on bottom ash with the concrete compression strength class ofLC 20/22.  The conclusions quantify the results of these studies.  

Author(s):  
Uyat Bayanzul ◽  
Jadambaa Temuujin ◽  
Amgalan Minjigmaa ◽  
Amgalan Bekhbaatar ◽  
B Battsetseg ◽  
...  

In Mongolia coal fired thermal power stations produce over 90% of the country’s electricity. Three thermal power stations located in Ulaanbaatar city produce more than 80% of all electricity produced in Mongolia. The annual output of fly ash and bottom ash from these thermal power stations is about 600,000 tons. The thermal power plants in Ulaanbaatar city use coal from Baganuur and Shivee-Ovoo deposits. This research was conducted to compare morphologies of various fly ashes and pond ashes from TPS in Mongolia. Fly ashes from TPS4 and pond ashes from TPS3 and TPS4 of Ulaanbaatar city were characterized by x-ray fluorescence (XRF), transmission electron microscopy (TEM), laser particle size distribution analyzer, specific surface area measurement (BET), and scanning electron microscopy (SEM). The chemical compositions of the fly ashes and pond ashes indicate that they are class C ashes. Specific surface areas of the fly ashes and pond ashes varied from 1.04 to 25.2 m2/g. Radiation measurements that were performed by γ-spectroscopy indicate that the radium equivalent changed from 292 to 761 Bq/kg in the various ashes.  


2020 ◽  
Vol 67 (11) ◽  
pp. 800-804
Author(s):  
K. E. Aronson ◽  
B. E. Murmansky ◽  
V. B. Novoselov ◽  
Yu. M. Brodov ◽  
A. Yu. Sosnovsky ◽  
...  

Desalination ◽  
1999 ◽  
Vol 126 (1-3) ◽  
pp. 261-266
Author(s):  
A.S. Sedlov ◽  
V.V. Shischenko ◽  
V.F. Ghidkih ◽  
R.M. Chasiachmetov ◽  
Y.I. Pichushkin

Sign in / Sign up

Export Citation Format

Share Document