Science And Technology Of Concrete Admixtures 〈360p 720p〉

As we move into the 21st century, admixtures are no longer just about strength; they are about . Concrete is the second most consumed resource on Earth, and its production is a major source of CO2cap C cap O sub 2 Modern science is turning to:

Combinations of water-reducing and setting-time controls. Science and technology of concrete admixtures

The solution came in 1981 with the invention of in Japan. These "comb-shaped" molecules revolutionized construction. They act like microscopic magnets, wrapping around cement particles and pushing them apart through electrostatic and steric repulsion. This allows concrete to be "fluidized" exceptionally well without adding extra water, leading to the creation of: As we move into the 21st century, admixtures

Using nano-silica or carbon nanotubes to fill microscopic pores, making concrete virtually impenetrable by water or salt. Self-Cleaning Surfaces: Adding Titanium Dioxide ( TiO2cap T i cap O sub 2 These "comb-shaped" molecules revolutionized construction