2015年11月19日星期四

Coping with Spalled Bricks



If old bricks get damp and also the water freezes, it expands and pushes off their outer surface. If no action is taken the bricks ultimately disintegrate totally, even though some forms of brick are much more susceptible to this than others.
When the surface on the brick is only slightly broken, a reasonably invisible repair might be produced by patching with mortar colored to match the surrounding bricks. In case you do this, you should be cautious to not cover more than the surrounding mortarLatex Adhesive.
To acquire the appropriate color, it is possible to start off by experimenting having a concrete colorant. In case you can not get a close adequate match, purchase a brick of the identical sort and employing a club hammer pound it into tiny pieces. (Be sure you put on goggles although you do this to stop brick chip-pings flying into your eyes.)
1. Next, mix the brick dust with some ready-mix bricklaying mortar. Mix up with water and add just a little PVA bonding agent.
Be sure the surface of the broken brick is totally free of any dust or particles of flaking bricks, then coat the exposed face with a light layer of dilute PVA Adhesive which helps the mortar to adhere. Just before you apply the mortar, cover the current pointing with a thin piece of wood, held in location temporarily.
two. Apply the mortar over the surface in the brick, until it's level using the surrounding brickwork.
When the mortar is very first applied, it will be significantly darker than the surrounding bricks. However, once it dries out, it'll turn out to be lighter and blend in using the rest from the walkChina Contact Adhesive
When the surrounding bricks are old and irregularly shaped, do not make the edges of the broken brick as well best.
When the harm is far more substantial then as an alternative to trying to patch the broken brick, it could be far better to replace it using a matching 1.

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