Microstructural and non-destructive investigation of the effect of high temperature exposure on ground ferronickel slag blended fly ash geopolymer mortars

2021 ◽  
pp. 103099
Author(s):  
Jhutan Chandra Kuri ◽  
Subhra Majhi ◽  
Prabir Kumar Sarker ◽  
Abhijit Mukherjee
Keyword(s):  
High Temperature ◽  
Fly Ash ◽  
High Temperature Exposure ◽  
Ferronickel Slag ◽  
Temperature Exposure ◽  
Non Destructive

scholarly journals Fly Ash Porous Material using Geopolymerization Process for High Temperature Exposure

2012 ◽  
Vol 13 (4) ◽  
pp. 4388-4395 ◽  
Author(s):  
Mohd Mustafa Al Bakri Abdullah ◽  
Liyana Jamaludin ◽  
Kamarudin Hussin ◽  
Mohamed Bnhussain ◽  
Che Mohd Ruzaidi Ghazali ◽  
...  
Keyword(s):  
High Temperature ◽  
Fly Ash ◽  
Porous Material ◽  
High Temperature Exposure ◽  
Temperature Exposure

scholarly journals Image analysis on disintegrated concrete at the post-heating stage

2020 ◽  
Vol 10 (2) ◽  
pp. 219-229
Author(s):  
A. H. Akca ◽  
N. Özyurt
Keyword(s):  
Compressive Strength ◽  
Image Analysis ◽  
High Temperature ◽  
Crack Growth ◽  
High Temperature Exposure ◽  
Single Lens ◽  
Temperature Exposure ◽  
Extent Of Damage ◽  
Damage In Concrete ◽  
Non Destructive

The relation between crack growth and reduction in the compressive strength after high temperature exposure and after air re-curing was investigated in this study. Concrete specimens were heated to 1000 ºC and they were subjected to air re-curing for 28 days. During re-curing period, their heated surfaces were monitored by using a digital single-lens reflex camera and the images were analyzed by using image analysis software. After cooling, the maximum reduction in the compressive strength of concrete was 49.5% and that of air re-cured concrete was 66.8%. Image analyses showed high correlations between crack growth and reduction in the compressive strength. This non-destructive method has the potential to represent the extent of damage in concrete after high temperature exposure.

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