Concrete Admixtures - Science And Technology Of

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

The heavy hitters, including superplasticizers for extreme flow or strength. The Future: Smart and Sustainable Concrete Science and technology of concrete admixtures

Combinations of water-reducing and setting-time controls. Using nano-silica or carbon nanotubes to fill microscopic

The history of admixtures is as old as the Roman Empire . Long before modern chemistry, Roman builders experimented with organic "potions" to make their concrete more workable and durable. They added , blood , and eggs to their mixes. These proteins acted as primitive air-entraining agents, helping the concrete withstand freeze-thaw cycles and making it easier for laborers to pour into the massive forms of the Pantheon. The Chemical Revolution: Master of Flow The history of admixtures is as old as the Roman Empire

Speeds up hardening for rapid repairs or winter pours.

Through the science of admixtures, what was once a gray paste has become a high-tech material capable of reaching the clouds, lasting centuries, and—hopefully—protecting the planet.

) so that sunlight breaks down pollutants on the building's surface.