Marble Acid Rain Effects On Buildings
Acid rain damages buildings and structures because it dissolves the stone or corrodes the metal that is exposed to the weather.
Marble acid rain effects on buildings. James williams takes a tour. Acid precipitation affects stone primarily in two ways. The most notable effects occur on marble and limestone which are common building materials found in many historic structures monuments and gravestones. Grant memorial across the street from the capitol building shows the effects that acid rain has on bronze a metal alloy consisting of copper and a small amount of tin.
Acid rain effects on buildings. Its components can make paint to be peel stone construction appears old worn down which reduces the architectural value and beauty. When sulfurous sulfuric and nitric acids in polluted air react with the calcite in marble and limestone the calcite dissolves. Stone surface material may be lost all over or only in spots that are more reactive.
The green stains on the statue s marble pedestal come from dissolved and oxidized copper as it runs down from the statue to the ground. Acids have a corrosive effect on limestone or marble buildings or sculptures. Sulfur dioxide plus water makes sulfurous acid. How does acid precipitation affect marble and limestone buildings.
Before people became aware of the problems that acid rain caused they often used metals limestone and marble as building materials exposed to rain and fog. When sulfurous sulfuric and nitric acids in polluted air and rain react with the calcite in marble and limestone the calcite dissolves. Hidden camera investigation on what really happens to your car cbc marketplace duration. Acid deposition also affects human made structures.
Acid rain damage can be seen on many of the monuments in washington d c. In exposed areas of buildings and statues we see roughened surfaces removal of material and loss of carved details. Stone buildings and monuments in acid rain. It is well established that either wet or dry deposition of sulfur dioxide significantly increases the rate of corrosion on limestone sandstone and marble.
Marble and limestone have long been preferred materials for constructing durable buildings and monuments. Cbc news recommended for you. The saint louis art museum the parthenon in greece the chicago.