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
mortar(Latex 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 walk(China 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.
没有评论:
发表评论