scholarly journals Effect of Combined Nanosilica and Microsilica on Resistance to Sulfate Attack

◽  
2016 ◽  
Author(s):  
Nader Ghafoori ◽  
◽  
Iani Batilov ◽  
Meysam Najimi ◽  
MohammadReza Sharbaf ◽  
...  
Keyword(s):  
Sulfate Attack

Effect of S2Cl2Addition on the Sulfate Attack of Hydrated Portland Cement

2009 ◽  
Vol 51 (3) ◽  
pp. 110-115
Author(s):  
H. Aygül Yeprem ◽  
Selahattin Gökmen
Keyword(s):  
Portland Cement ◽  
Sulfate Attack

Comprehensive resistance of fair-faced concrete suffering from sulfate attack under marine environments

2021 ◽  
Vol 277 ◽  
pp. 122312
Author(s):  
Chang Honglei ◽  
Jin Zuquan ◽  
Wang Penggang ◽  
Wang Jianhong ◽  
Liu Jian
Keyword(s):  
Sulfate Attack ◽  
Marine Environments

scholarly journals Prediction of concrete compressive strength due to long term sulfate attack using neural network

2014 ◽  
Vol 53 (3) ◽  
pp. 627-642 ◽  
Author(s):  
Ahmed M. Diab ◽  
Hafez E. Elyamany ◽  
Abd Elmoaty M. Abd Elmoaty ◽  
Ali H. Shalan
Keyword(s):  
Neural Network ◽  
Compressive Strength ◽  
Sulfate Attack ◽  
Concrete Compressive Strength

Phase composition depth profiles using spatially resolved energy dispersive X-ray diffraction

2004 ◽  
Vol 37 (6) ◽  
pp. 967-976 ◽  
Author(s):  
Andrew C. Jupe ◽  
Stuart R. Stock ◽  
Peter L. Lee ◽  
Nikhila N. Naik ◽  
Kimberly E. Kurtis ◽  
...  
Keyword(s):  
Phase Composition ◽  
Spatial Resolution ◽  
Zinc Coating ◽  
High Energy ◽  
Sulfate Attack ◽  
Energy Dispersive ◽  
X Ray Diffraction ◽  
X Ray ◽  
Spatially Resolved ◽  
Composition Profiles

Spatially resolved energy dispersive X-ray diffraction, using high-energy synchrotron radiation (∼35–80 keV), was used nondestructively to obtain phase composition profiles along the radii of cylindrical cement paste samples to characterize the progress of the chemical changes associated with sulfate attack on the cement. Phase distributions were acquired to depths of ∼4 mm below the specimen surface with sufficient spatial resolution to discern features less than 200 µm thick. The experimental and data analysis methods employed to obtain quantitative composition profiles are described. The spatial resolution that could be achieved is illustrated using data obtained from copper cylinders with a thin zinc coating. The measurements demonstrate that this approach is useful for nondestructively visualizing the sometimes complex transformations that take place during sulfate attack on cement-based materials. These transformations can be spatially related to microstructure as seen by computed microtomography.

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