Today, chemical admixtures are classified into seven standard types, each serving a specific "superpower" for the builder:
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: Science and technology of concrete admixtures
Lowers water content while maintaining flow. Science and technology of concrete admixtures
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. Science and technology of concrete admixtures
Combinations of water-reducing and setting-time controls.