Concrete Damage

Damage to concrete structure can be caused by the following (environmental) factors:

Physical factors: heat, changes in temperature, damp, wind, etc.
Chemical factors: acids, leaching of salts, organic substances, etc.
Biological factors: micro-organisms, fungi, algae's, moss, etc.
Mechanical factors: overloading, construction faults etc.

 

The damage that can arise due to these factors can be roughly divided into two groups, namely:

How is concrete repaired?

 


A.    Carbonation damage (concrete corrosion)
B.    Chloride damageConcrete can be repaired in two ways: by using shotcrete or manual repair using a skimmer, trowel and/or casting.

Before the concrete surface is covered again, the loose concrete must be removed using a demolition hammer until no further rusted reinforcing steel is present. Then the reinforcing steel is given a coating and can be finished with a repair mortar.