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| An Example Of Corrosion Of Reinforced Concrete |
The walls of concrete or steel structure applying the reinforcement that is not watertight can also bring up corrosion on the steel reinforcement, it allows the water outside the wall or wall d over inundated could enter into walls or concrete, and water until at place the steel reinforcement steel reinforcement therefore will react with the water coming from the outside of the wall and will embody the craftsmanship of corrosion. Before the steel reinforcement is used we must look at whether corrosion has occurred on the surface of the steel reinforcement effect of less good storage in the open air in a certain time span, if the steel reinforcement has been prominent redness of influence corrosion clean the surface so that the products of corrosion from the surface material is gone.
When the concrete reinforcement that will be used for the building structure is not protected, will bring up the risk of corrosion in steel reinforcement. Water that can be missed on the steel reinforcement and will cause corrosion in steel reinforcement are not protected because there are elements on the water will react with the steel that would cause the steel to be corrode. The corrosion that occurs on the steel reinforcement can bring up the cracking on the walls or concrete, this is due to the presence of a thickening on the surface as if the steel reinforcement influences the presence of corrosion products in the form of oxides. Concrete reinforcement that will be used for the building structure is not encrypted. Often we see a reddish yellow concrete such as rusty, but people rarely think of what actually happened.
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| Wujud Korosi Pada Beton Bertulang |
When this could have been caused by steel structure contained within the building corrode. Corrosion happens on steel reinforcement corrosion is uniform or commonly called the uniform corrosion. Normally, the steel reinforcement in the concrete will not corrode, because concrete on usually has a high PH (around 12.5), the nature of high PH or base/alkali on the concrete occurs when semen mixed with water. Wall or concrete that the steel reinforcement does not apply. Unless viewed from the tariff item, this incident will be dangerous building residents, imagine if this sort of thing not dealt with good and just considered it trivial, indeed within some months might not be going anything but where they have been most years, it is possible that unexpected things will happen.
There are beberrapa things that need to be done so that the steel reinforcement used in building structures do not undergo corrosion. When this will potentially cause the working of corrosion on steel or concrete structures, metal materials contained on such things. On the tub area shelter structure of crude oil, down from building offshore, in place of its muted water beaches and temperatures tend to be consistent or will potentially grow microbes actively realizing carbon dioxide and could lose The PH of the water.
Water can get into the concrete and the reinforcement via 2 system, via the water coming from the outside or the water vapor in the air through the pores of the concrete because the concrete is not waterproof. This thickening occurs when, at a severe level walls or concrete will not be able to stem the rate of thickening so it came to cracking in concrete walls or paermukaan.
Protect steel reinforcement that will be used. When steel reinforcement is already used on a building structure without specifically protected in the past, be carried out with the security deed system overlay surface buildings with paint. When the surface of the building it could not contact immediately with the weather can be painted with paint walls, but if the surface that will soon contact banguna with the weather must be coated with paint that is Weirs with the weather (weather shield).
A result of Reinforcement Steel Corrosion that is experiencing.
If we cannot expect all kinds of negative consequences which are already discussed above, occurs on the building of course we have to carry out the prevention so that such things cannot happen.
Sulfate ion from sea water will react with hydrates of portland cement can cause a decrease in the quality of the concrete, make the concrete to be weak/soft and brittle (brittle).
Prevention of corrosion in Steel Reinforcement.
Because of this, surface alkali nature of steel in concrete is embodied a passive layer of steel protected from that caused the outbreak. Great rates certainly must be issued to solve a case like this, because the building was already standing and corrosion that has happened has been severe. After that the steel reinforcement with paint protection, paint protection can hit rate is needed to protect steel reinforcement. Chloride ion can come from the external environment, such as seawater or workmanship hyrolysis auto catalysis of metal material itself that causes the steel to corrode.
The building's power will be reduced.
The result of the interaction of such things lead to concrete PH down (< 9) and this resulted in a decrease in the resistance of the passive layer on the surface of steel reinforcement.
There are various systems for corrosion on steel reinforcement.
One of the causes of damage to buildings was the sea corrosion on the surroundings of concrete and reinforcement. This type of corrosion, damage occurred on the reinforcement in the concrete. If that's not important is cluck monitoring on a regular basis, so that known if there is something not normal with the building. When this occurs in an area must reflect an aesthetic, perfection such as large companies, malls, Flyover, this identifies the area reduced its beauty. Work there are the remains of water hardness, tereaksikan on when mixing cement with water.
The Rust being formed on the reinforcement results in the development of the volume of the iron reinforcement such things. The occurrence of corrosion on a building can influence the period of use of the building such things, because the structural parts of the labor power decrease. carbonation occurs because the existence of the interaction of carbon dioxide (CO2) in the air/atmosphere with hydroxide ion in concrete.