While
concrete has been used to build structures as far back as the Roman Empire
advances in the last couple of centuries have made it possible to create
today’s impressive concrete structures. In
fact it was during the 19th century that one of the most significant
technological advancements was made with the development of reinforced concrete
in 1849.
François
Coignet, a French industrialist and pioneer in structural, prefabricated and
reinforced concrete was the first person to use iron-reinforced concrete “as a
technique for constructing building structures.” One of his significant projects was to build a
four-story reinforced house in the suburbs of Paris in 1853. He describes the process as more of a method
to keep the walls in monolithic construction from overturning rather than as a technique
that provides strength to the structure.
Just
a year later, William B. Wilkinson, an English builder, reinforced both the
concrete roof and floors in a two-story house he built. From an engineering standpoint, “his positioning
of the reinforcement demonstrated that, unlike his predecessors, he had
knowledge of tensile stresses.”
Within
a couple of decades, Joseph Monier, a French gardener and one of the principal
inventors of reinforced concrete exhibited his invention at the Paris
Exposition of 1867. That same year he
received a patent for iron-reinforced troughs for horticulture that consisted
of mixing a wire mesh to a mortar shell.
He was given another patent for a more advanced technique of
“reinforcing concrete columns and girders with iron rods placed in a grid
pattern” in 1877.
It
is believed Monier understood that reinforcing concrete would improve its inner
cohesion. “The important point of
Monier's idea was that it combined steel and concrete in such a way that the
best qualities of each material were brought into play”. Monier is credited with designing the first
iron-reinforced cement bridge built in 1875 and constructed at the Castle of
Chazelet. Please read our next post to
learn more about the developments of reinforced concrete and how the technology
help to spur the building boom of the 20th century.
The Conco Companies are a leading
supplier of concrete services for the Western U.S. and got our start in the Bay
Area in 1959 by offering clients the best value on a wide range of concrete
services and products. Since that time,
we have taken a leading role as one of the top concrete contractors in the
region. Our offices serve California, Colorado, Oregon, Washington and Nevada.
Sources: en.wikipedia.org/wiki/Reinforced_concrete,
en.wikipedia.org/wiki/Joseph_Monier
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