2. The invention of reinforced concrete appeared in modern times, and it is generally believed that it was invented in 1848. 1868, a French gardener, obtained a patent including reinforced concrete flowerpots and reinforced concrete beams and columns applied to highway guardrails.
3. 1872, the world's first reinforced concrete structure building was completed in new york, USA, and a brand-new era in the history of human architecture began. After 1900, reinforced concrete structures were widely used in engineering.
4. 1928, a new reinforced concrete structure-prestressed reinforced concrete, appeared after World War II and was widely used in engineering practice. /kloc-the invention of reinforced concrete and the application of steel in the construction industry in the middle of the 0/9th century made it possible to build high-rise buildings and long-span bridges.
Reinforced concrete is one of the most important building materials nowadays, but its inventor is neither an engineer nor an expert in building materials, but a French gardener named monineath. There is a big garden in monineath with beautiful flowers all year round, but the flower beds are often crushed by tourists.
6. To this end, monineath often thinks: "Is there any way to get people to step on the flower bed without being easily crushed?" One day, when monineath was arranging flowers, he accidentally broke a pot of flowers, and the flowerpot broke into pieces, but the soil around the flower root was just wrapped in a ball.
7. "oh! The roots of flowers and trees are criss-crossed and firmly connected to soft soil! " Inspired by this incident, he weaved the wire into a net like the roots of flowers and trees, and then stirred it with cement and sand to make a flower bed, which was really strong.