2015年11月11日星期三

Coping with Spalled Bricks



If old bricks get damp along with the water freezes, it expands and pushes off their outer surface. If no action is taken the bricks sooner or later disintegrate entirely, though some kinds of brick are more susceptible to this than other individuals.
If the surface from the brick is only slightly damaged, a reasonably invisible repair may be produced by patching with mortar colored to match the surrounding bricks. In case you do this, you should be cautious not to cover more than the surrounding mortarLatex Adhesive.
To have the correct colour, it is possible to start off by experimenting using a concrete colorant. If you cannot get a close sufficient match, get a brick on the exact same variety and making use of a club hammer pound it into tiny pieces. (Ensure you wear goggles while you do that to prevent 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 a little PVA bonding agent.
Make sure the surface from the damaged brick is free of charge 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. Before you apply the mortar, cover the existing pointing using a thin piece of wood, held in spot temporarily.
two. Apply the mortar over the surface on the brick, till it really is level with all the surrounding brickwork.
When the mortar is 1st applied, it will likely be considerably darker than the surrounding bricks. Even so, as soon as it dries out, it is going to turn into lighter and blend in with the rest from the walkChina Contact Adhesive
When the surrounding bricks are old and irregularly shaped, never make the edges on the broken brick as well excellent.
If the damage is a lot more substantial then as opposed to wanting to patch the damaged brick, it would be far better to replace it having a matching a single.

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