A Review on Mechanical Properties of Geopolymer Composites for High Temperature Application

2015 ◽  
Vol 660 ◽  
pp. 34-38 ◽  
Author(s):  
Ikmal Hakem Aziz ◽  
Mohd Mustafa Al Bakri Abdullah ◽  
Heah Cheng Yong ◽  
Liew Yun Ming ◽  
Kamarudin Hussin ◽  
...  

Geopolymer is cementitious binder that has enormous potential to become an alternative to ordinary Portland cement (OPC). Geopolymer composites have the potential to substantially curb the carbon dioxide (CO2) emissions. Kaolin, metakaolin, slag and fly ash have been used as the prime materials for forming geopolymers composites. Geopolymers have been studied for the past decade due to its unique properties such as low shrinkage, substantially chemical resistance, and higher fire resistance. The geopolymer offer an innovative for coating application at higher thermal application. Based on historical review, geopolymer materials exhibit resistance to corrosion, abrasion and heat. This paper summarizes some research finding about alkali-activated binders over the past decades along with outlines of the potential of geopolymer composites for high temperature application.

2015 ◽  
Vol 660 ◽  
pp. 17-22 ◽  
Author(s):  
Emy Aizat Azimi ◽  
Mohd Mustafa Al Bakri Abdullah ◽  
Liew Yun Ming ◽  
Cheng Yong Heah ◽  
Kamarudin Hussin ◽  
...  

Geopolymer is an environmentally cementitious binder that does not require the existence of ordinary Portland cement (OPC). Geopolymer has many excellent advantages, including high early strength, low shrinkage, good thermal resistance and good chemical resistance. Based on previous research, geopolymer offered good resistance to corrosion, abrasion and heat. Fly ash, metakaolin, kaolin, and slag are regularly used raw materials for the preparation of geopolymer composites. Geopolymer composites also offer a potential environmental friendly product by reduce the carbon dioxide (CO2) emissions. This geopolymer material also offers an innovative and sustainable solution for maintaining infrastructure and also provides superior thermal, chemical and mechanical performance. This paper summarizes some research outcomes on alkali-activated binders along with the potential of geopolymer composites for thermal insulating applications.


1997 ◽  
Author(s):  
R. Spivey ◽  
S. Breeding ◽  
J. Andrews ◽  
D. Stefanescu ◽  
S. Sen ◽  
...  

2012 ◽  
Vol 586 ◽  
pp. 69-73
Author(s):  
Chia Chen Lin ◽  
Cheng Han Lee ◽  
Ren Kae Shiue ◽  
Hsiou Jeng Shy

High-temperature brazing molybdenum using palladium and titanium foils have been investigated in the experiment. Successful brazed joints are achieved from using the palladium filler foil. Brazed joints are fully dense and free of any intermetallic phase. Three point bending strengths of 246 and 233 MPa are obtained from joints using 100 m thick palladium filler foil brazed at 1580 and 1610 oC for 600 s, respectively. The application of palladium filler foil shows potential in brazing molybdenum for high-temperature application.


2021 ◽  
pp. 118607
Author(s):  
Yanyan Zhou ◽  
Yingjuan Yan ◽  
Yanyan Li ◽  
Xiang Li ◽  
Haoyang Wu ◽  
...  

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