Milestone Masonry

Efflorescence


A common problem with masonry is the appearance of efflorescence.
(Not to be confused with effervescence associated with fizzy tablets or carbonated beverages)
The condition occurs when soluble salts in the clay and mortar are deposited
on the surface of the brick. Newer masonry or very wet
masonry that has recently dried  from warmer weather or drying winds
are more susceptible to the formation of deposits.
The condition is superficial and doesn't hurt the brick.
Simply spraying the brick with water is enough to improve the appearance
although it may only be temporary and the brickwork may re-absorb the salts
only to reappear as the masonry dries.
If possible, use a brush to remove the dry deposits before wetting.
The condition seems to improve as the weather leaches out and diminishes
the amount of remaining salts.
 

 

Typical deposits left after brick dry out After a damp brushing.

Heavy deposits on red brick