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With a masonry chisel. It may be easier to cover it with a new surface.

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15y ago
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Q: How do you remove plaster from concrete block walls?
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How do you get masonry nails out of plaster without removing the plaster?

Masonry nails have very small heads, and are notoriously difficult to remove from plaster, concrete, and wooden walls. The best way to remove them, without removing the plaster, is to cut the head off so that it is flat to the wall. Then, fill in the hole and repaint, if necessary.


What insect burrows in concrete block wall?

Termites burrow into concrete block walls. Termites live in many types of structures. In addition to walls they also live in baseboards and slabs.


What is the thickness of a concrete hollow block?

The standard concrete building block for load-bearing walls is 8 x 8 x 16


Are poured concrete walls better than concrete block walls?

It depends on the application. For homes, masonry is fine as long as it is insulated well against the weather. Masonry rarely needs maintenance. Concrete walls are stronger and last longer than masonry but are more costly to construct. For basement walls, I suggest that you always use concrete walls. Above ground level, masonry is cheaper and strong enough for residential and commercial, multi-story applications. For retaining walls, 8" thick masonry works well up to about 8 feet of retained earth. Above that, the lower courses of block will get thicker to 12". You still need concrete footings for block walls.


What type nail is used to fasten boards to cinder block walls?

concrete nail


Are concrete blocks cheaper then a concrete slab?

That's sort of a strange question. A concrete slab is a horizontal surface -- it's meant to be a surface you stand on or build things on. Concrete blocks are usually used for vertical surfaces -- walls. I believe that poured concrete walls are more expensive than concrete block walls. You wouldn't use concrete blocks as a substitute for a concrete slab.


Why did they use plaster walls in the himeji castle?

The japanese put white plaster on the walls because it is fireproof


How do you plaster a swimming pool?

You drain the water then plaster the walls from inside


How do you keep concrete block walls from collapsing?

Prior to stuccoing the CBS you can install metal mesh or REBAR


What can block gamma ray?

Very thick earthen, rock, or concrete walls. Or, lead or gold shielding.


Enter your question here repairing plaster walls and repainting?

does it cover repairing plaster walls and repainting and fixng plumbing


Explain modular sizing of concrete block wall?

A detailed explanation of the sizing of modular concrete blocks for retaining walls and other projects is in the related links.