Japan has developed concrete with a life span of 10,000 years.

< P > < FONT face = Verdana > According to Japan's Sankei Shimbun, the service life of widely used concrete is generally only about 100 years, while the service life of this new type of concrete named "EIEN" can be as long as 10,000 years. This new type of concrete, which is not easy to corrode, can be widely used in dikes, piers, tunnels and other projects.

< P > < FONT face = Verdana > The development of the new concrete was reportedly inspired by Chinese archaeological sites dating back more than 5,000 years. The history of modern concrete is only 200 years at most, but in the Neolithic Dadiwan site in China more than 5000 years ago, archaeologists found relics similar to concrete, whose durability attracted the attention of construction experts.

< P > < FONT face = Verdana > Research shows that the cracks on the surface of the excavated ancient "concrete" are filled by chemical reaction, which effectively prevents water and salt from penetrating into the interior, thus delaying corrosion. "EIEN" uses this principle to add special minerals to the material to produce the same chemical reaction on the surface of concrete.

< BR > (Please indicate the source for reprinting on China Concrete and Cement Products Website)