About 100 years → more than 200 years!New technology makes reinforced concrete live longer

A Japanese company has developed a new technology to reduce the number of bubbles in reinforced concrete, which it claims can extend the service life of reinforced concrete from about 100 years to more than 200 years.

Traditionally, air bubbles form when concrete is poured, resulting in holes on the surface of concrete after it has solidified.In the years of wind and rain, rain and salt will infiltrate into the concrete from the holes and corrode the steel, resulting in concrete cracks and other problems, affecting the service life.

Japan's IHI has developed a new technology to reduce air bubbles in concrete, the yomiuri shimbun reported Thursday.The company used special equipment developed independently to vibrate the concrete before pouring and apply pressure to expel air, reducing the number of holes caused by bubbles by about 70%.

Tests have shown that the penetration rate of concrete poured this way, such as rainwater, has slowed significantly, and the company believes the new technology could extend the concrete's service life from about 100 years to more than 200 years.The company plans to use the new technology in infrastructure such as tunnel sidewalls, as well as sell the equipment and technology.

Japan built a lot of infrastructure during the past period of rapid economic growth, and by 2033, 63% of its roads, Bridges and 42% of its tunnels will be over 50 years old, the report said.New technology is expected to help tackle the problem in the future, reducing the cost of maintaining and updating infrastructure such as roads, Bridges and tunnels.

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