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Successful Concrete Contractors San Jose
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Successful Concrete Contractors San Jose
By Helene Norris
The concrete contractors San Jose use this most durable of building materials to pour driveways, garage floors and patios. It is so lasting that buildings constructed of it during the time of the Roman Empire are still standing today. One example is the Roman Pantheon, which has the biggest solid dome of this material that was ever built without the use of reinforcement.
When the Roman Empire fell, many of the concrete structures located in the area did not. The material was not used much from then until the eighteenth century when it became popular again. It is mixed into a liquid and poured into wooden forms that hold it in place as it dries. Weight bearing structures such as bridges may be reinforced by adding rebar.
Often the words concrete and cement are thought to be interchangeable. However, cement is one of the components used to make the composite concrete. Other components are aggregates such as gravel or small pebbles and sand. Various proportions of these are used. Some structures require more strength and that is taken into consideration.
Their are famous dams and bridges that were built using this enduring material. It is popular for building foundations, bridges, highways and airport runways.
Color is added to the mix for decorative applications. Stamping, staining and polishing also add a decorative touch. Special molds can be used to make fountains, birdbaths and statues. It can be polished to look like the mirror finish found on marble.
The building material now generally known as Portland cement was created and patented in 1824 by Joseph Aspdin. Reinforced concrete, containing blood to allow it to resist frost, was invented by Joseph Monier in 1849.
Just as ingredients are varied depending on the kind of cake you are baking, the proportions of the ingredients are added in different amounts depending on needed strength. The aggregate that is added to the cement consists of large chunks of gravel or crushed limestone. Sand is another additive that is used.
Water is added to the other components and they are mixed. Prior to pouring the mixture, rebar or steel is position in the forms as needed. The wooden forms hold the mixture in place as it dries and are later removed. Weight bearing structures such as bridges, skyscrapers and highway overpasses need this extra reinforcement.
Chemicals are sometimes added along with the water. They are intended to slow down or speed up the rate at which the mixture hardens. A skilled contractor will know what chemical to use and how it will affect the structure being built. His experience in this is invaluable.
In cold climates excessive expansion and contraction of the material will occur. This is not a required consideration for building in San Jose. Saw cuts are made in each project to allow for some of this change to occur without damaging the road or driveway.
The
concrete contractors San Jose are adept at pouring garage floors, driveways, patios, fire pits and anything that can be made of this most enduring material. The homeowner can have a matching patio and garden walk. A driveway or flower garden can be made more attractive by the addition of a border. The possibilities for practical and decorative applications are endless.
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