«интернаука» Научный журнал №28(157) Август 2020 г. Издается с ноября 2016 года Москва 2020 ббк 94 И73 Председатель редакционной коллегии: Еникеев Анатолий Анатольевич


Picture 2. The process of testing ash content of the



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28(157)

 
Picture 2. The process of testing ash content of the 
samples 
Three various moisture degree of the compounds 
were tested during the research in order to find most 
optimal one. Each ratio had 4 samples. Durability rates 
of each samples were gathered up and average durabil-
ity were taken as an overall result. The physical strength 
of the research samples was tested by measuring equip-
ment of the G.U.N.T Company, Germany, called 
WP300.20. The high measuring accuracy of the equip-
ment increased reliability of taken results. WP 300 has 
the functions of conducting various testing methods, 
such as tensile test and Brinell hardness test, and test 
like compression test, bending test, stamping test, shear 
test, disc spring and coil spring test can be conducted 
using the additional accessories[4]. 
 
Picture 3. Measuring equipment G.U.N.T. WP300.20 
The computer software of the equipment simplified 
testing procedure. The first step in testing is to choose 
test method and enter the values (form, height, width 
and etc.) of the sample. The next step is to put the sam-
ple to the specific area of the equipment and start the 
test. While conducting compression test manually the 
computer will collect all date coming from the machine 
and displays the results both in table and diagram form. 
The diagram beneath depicts durability of the sam-
ple to the physical force for 1mm
2
area. The highest 
point of the line, accounting for 3.38 N, indicates the 
maximum force involved in the test in order to destruct 
the sample. Which means the sample can resist to the 


Журнал «Интернаука» 
№ 28 (157), 2020 г. 
78 
amount of physical force less than 3.38N/mm
2
area. 
This is higher than usual briquette samples’ durability to 
1.5 times. 
Additionally, both of the research shows that coal 
briquettes had higher attributes than pure coal of Uzbek 
origin which has approximately 750kkal/per kilo which 
is almost 7 times lower than coal efficiency of the ones 
originated from Russia and Caucasus, which in turns 
gives motive to continue works on developing charac-
teristics of coal briquettes.

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