Effects of nano-silica and reactive magnesia on the microstructure and durability performance of underwater concrete

2021 ◽  
Author(s):  
In Kyu Jeon ◽  
Abdul Qudoos ◽  
Byeong Hun Woo ◽  
Dong Ho Yoo ◽  
Hong Gi Kim
Keyword(s):  
Nano Silica ◽  
Underwater Concrete ◽  
Reactive Magnesia ◽  
Durability Performance

Synergistic influence of micro-nano silica mixture on durability performance of cementious materials

2018 ◽  
Vol 164 ◽  
pp. 579-588 ◽  
Author(s):  
Aladdin M. Sharkawi ◽  
Metwally A. Abd-Elaty ◽  
Omar H. Khalifa
Keyword(s):  
Nano Silica ◽  
Durability Performance

Preliminary study on removal of nitrate nitrogen in aqueous samples by microbial nano-silica ball

2014 ◽  
Author(s):  
Jia Lu ◽  
Xiaohou Shao ◽  
Chao Yin ◽  
Xinyu Mao ◽  
Long Wang ◽  
...  
Keyword(s):  
Nitrate Nitrogen ◽  
Aqueous Samples ◽  
Nano Silica ◽  
Preliminary Study

Evaluating Micro-Structure, Hydration and Thermal Expansions of Cement Containing Nano-Silica

GIS Business ◽  
2020 ◽  
Vol 15 (1) ◽  
pp. 158-165 ◽  
Author(s):  
Dr. Sarvesh PS Rajput
Keyword(s):  
Portland Cement ◽  
Mechanical Characteristics ◽  
Microstructural Properties ◽  
Nano Silica ◽  
Micro Structure ◽  
Microstructural Characteristics ◽  
Mechanical And Microstructural Properties

This study reported that the addition of nano-silica enhances the mechanical characteristics of concrete as its compressive, flexural and tensile split strengths are increased. As a comparison mixture to equate it along with nano-modified concrete, ordinary samples of Portland cement (OPC) have been utilized. Herein, upto 6.0 percent of OPC has been substituted by nanosilica. In fact, the introduction of nanosilica improves mechanical and microstructural characteristics of concrete by significantly (28 to 35%). The finding therefore, indicated that partly replacing OPC with up to 5 percent nanosilica increases the mechanical and microstructural properties cured up to ninety days as opposed to the standard OPC mix.

Durability performance of silica fume Self-Compacting Concrete

2019 ◽  
Vol 164 (0) ◽  
pp. 193-213
Author(s):  
Taha E. Taha ◽  
Ahmed M. Tahwia ◽  
Ahmed H. Abdelraheem
Keyword(s):  
Silica Fume ◽  
Self Compacting Concrete ◽  
Durability Performance
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