scholarly journals The load dependence of the micro-hardness of the blast furnace slag

10.30544/512 ◽  
2020 ◽  
Vol 26 (3) ◽  
pp. 329-340
Author(s):  
Jozef Petrík ◽  
Peter Blaško ◽  
Vojtech Mikloš ◽  
Alena Pribulová ◽  
Peter Futaš ◽  
...  
Keyword(s):  
Blast Furnace ◽  
Energy Cost ◽  
Blast Furnace Slag ◽  
Environmental Problem ◽  
Indentation Size Effect ◽  
Grinding Process ◽  
Micro Hardness ◽  
Indentation Size ◽  
Load Dependence ◽  
Furnace Slag

Deposits of old blast-furnace slag are an environmental problem. The slag’s hardness is an important for calculation of the energy cost for crushing and grinding process. Due to its porosity, measurement of the (macro) hardness is. To adapt the dimensions of the indentations to the character of the slag, it is necessary to apply loads in the range of micro-hardness. The purpose of this paper is to evaluate the influence of load on the micro-hardness - the Indentation Size Effect (ISE) using Meyer’s, Hays-Kendall and PSR methods. ISE for all samples is “normal”, the slag’s basicity affects micro-hardness and ISE.

scholarly journals On the Load Dependence of Micro-Hardness Measurements: Analysis of Data by Different Models and Evaluation of Measurement Errors

2016 ◽  
Vol 61 (4) ◽  
pp. 1819-1824 ◽  
Author(s):  
J. Petrík
Keyword(s):  
Measurement Errors ◽  
Applied Load ◽  
Indentation Size Effect ◽  
Micro Hardness ◽  
Indentation Size ◽  
Load Dependence ◽  
Proportional Specimen Resistance ◽  
Dispersion Zone ◽  
The Relationship ◽  
Uncertainty Of Results

AbstractThe influence of applied loads between 0.09807 N and 0.9807 N on measured values of micro-hardness was evaluated by Meyer’s index n, proportional specimen resistance model (PSR) and Hays – Kendall methods, Total Dispersion Zone and Analysis of Variance (ANOVA). The measurement was repeated 6 times using the same hardness reference block with standard hardness Hc= 327 HV0.05 as a sample. The influence of the load on the measured value of micro-hardness is statistically significant, and the relationship between applied load and micro-hardness manifests reverse indentation size effect (ISE) for most of “measurements”. The high value of the uncertainty of results can affect the existence and nature of ISE, especially at low loads.

Study on the Shrinkage of a Full-Scale Wall Made with Blast Furnace Slag Fine Aggregates

CONCREEP 10 ◽  
2015 ◽  
Author(s):  
Tomiyuki Kaneko ◽  
Keiichi Imamoto ◽  
Chizuru Kiyohara ◽  
Akio Tanaka ◽  
Ayuko Ishikawa
Keyword(s):  
Blast Furnace ◽  
Blast Furnace Slag ◽  
Full Scale ◽  
Fine Aggregates ◽  
Furnace Slag

Influence of Melt Compounding on Blast Furnace Slag Filled PP Compounds: A Comparative Study

2017 ◽  
Vol 32 (4) ◽  
pp. 446-454
Author(s):  
A. Mostafa ◽  
G. Pacher ◽  
T. Lucyshyn ◽  
C. Holzer ◽  
E. Krischey ◽  
...  
Keyword(s):  
Blast Furnace ◽  
Comparative Study ◽  
Blast Furnace Slag ◽  
Melt Compounding ◽  
Furnace Slag

ON THE USE OF SLAG CEMENT COMPOSITIONS IN THE CONSTRUCTION OF WELLS

2017 ◽  
pp. 80-85
Author(s):  
V. P. Ovchinnikov ◽  
O. V. Rozhkova ◽  
N. A. Aksenova ◽  
P. V. Ovchinnikov
Keyword(s):  
Blast Furnace ◽  
Blast Furnace Slag ◽  
Elevated Temperatures ◽  
Cement Mortar ◽  
Setting Time ◽  
Rheological Parameters ◽  
Slag Cement ◽  
Furnace Slag

In the article studies of oil-filled compositions with the addition of blast-furnace slag for strength at elevated temperatures are presented. The rheological parameters of the slag cement slag cement mortar, as well as the setting time, were studied. Conclusions are drawn about the prospects of further study of slag cementcontaining compositions.

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