Micro structure of concrete with nano materials gets changed like anything and is resulting tremendous increase in compressive strength apart from increase in specific surface area.
by mixing a nano-sized additive with cement.
Ordinary Portland cement is suitable. As per IRC 21, Portland Pozzolana Cement is limited for Plain Concrete only.
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the main difference is we will not at all use the ordinary port land cement in the geo polymer concrete mix simply we will use fly ash as a binder material and a chemicals such as sodium silicate and sodium hydroxide are used
Aggregate, Ordinary Portland Cement, sand, water
by mixing a nano-sized additive with cement.
Because they are more efficient.
no
yes
Ordinary Portland cement is suitable. As per IRC 21, Portland Pozzolana Cement is limited for Plain Concrete only.
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Ordinary structural concrete is characterized by its water-to-cement ratio. The lower the water content, all else being equal, the stronger the concrete
Examples: concrete, wine, soil, bricks, salad, soup, gasoline, etc.
Ordinary concrete itself does not cause lung cancer. However, the dust generated when cutting, grinding, or demolishing concrete can contain silica, which is a known carcinogen. Prolonged exposure to respirable crystalline silica can lead to serious lung diseases, including lung cancer. Therefore, proper safety measures, such as using masks and proper ventilation, are important when working with concrete.
concrete made upof ordinary portland cement gain strength in 28days
I think you are talking about embedding steel rods (rebars) in concrete, right? This would make the concrete much stronger. It is called reinforced concrete, and you can make all sorts of structures with it, something that you can't do with ordinary concrete. Though, I am not even sure anyone is using non-reinforced concrete nowadays.
Landmark legislation is a law signed into effect that is new or something that causes controversy. An ordinary legislation, on the other hand, does not cause a controversy.