Synthesis and characterization of sustainable geopolymer green clay bricks: An alternative to burnt clay brick

2020 ◽  
Vol 259 ◽  
pp. 119659 ◽  
Author(s):  
Sahar Iftikhar ◽  
Khuram Rashid ◽  
Ehsan Ul Haq ◽  
Idrees Zafar ◽  
Fahad K. Alqahtani ◽  
...  
2005 ◽  
Vol 486-487 ◽  
pp. 403-406 ◽  
Author(s):  
Jung Whan Yoo ◽  
Jin Ho Jung ◽  
Hyung Tae Kim

Utilizing coal waste byproducts formed during mine development or use is important in solving environmental problems and recycling of waste materials. In this study, specimens prepared by mixing coal waste of 10, 20, 30, 40, and 50 % into clay brick have been investigated in terms of water absorption and compressive strength according to coal waste amounts and calcination temperature. As coal waste content increased water absorption increased and compressive strength decreased. When up to 30% coal waste was mixed into clay at 1300 oC, specimens satisfied 1st-class brick of Korea Standard requirements (water absorption 10%>, compressive strength 210 kgf/cm2<).


2020 ◽  
Vol 231 ◽  
pp. 117190
Author(s):  
Qasim Afzal ◽  
Safeer Abbas ◽  
Wasim Abbass ◽  
Ali Ahmed ◽  
Rizwan Azam ◽  
...  
Keyword(s):  

1996 ◽  
Vol 61 (10) ◽  
pp. 3572-3572
Author(s):  
Lawrence T. Scott ◽  
Atena Necula

2018 ◽  
Vol 2 (1) ◽  
pp. 7
Author(s):  
S Chirino ◽  
Jaime Diaz ◽  
N Monteblanco ◽  
E Valderrama

The synthesis and characterization of Ti and TiN thin films of different thicknesses was carried out on a martensitic stainless steel AISI 410 substrate used for tool manufacturing. The mechanical parameters between the interacting surfaces such as thickness, adhesion and hardness were measured. By means of the scanning electron microscope (SEM) the superficial morphology of the Ti/TiN interface was observed, finding that the growth was of columnar grains and by means of EDAX the existence of titanium was verified.  Using X-ray diffraction (XRD) it was possible to observe the presence of residual stresses (~ -3.1 GPa) due to the different crystalline phases in the coating. Under X-ray photoemission spectroscopy (XPS) it was possible to observe the molecular chemical composition of the coating surface, being Ti-N, Ti-N-O and Ti-O the predominant ones.


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