Have never laid cavity block, only 9inch solids however i have a job on where the client has asked me to lay some. Im capable enough to build walls and small garages with 9inch solids but wanting to know would there be much difference between the 2 type blocks laying them.
cavity block or solids.
- Thread starter 2019
- Start date
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As Notch, never seen them over here; you would of course lay them open-side down.
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L
Leofric
Why do they want to use hollow blocks ?
https://www.buildingmaterials.co.uk...eral+2898506001+pla-1100700384544&fl=1000&ci={creative}&network={adtype}&msclkid=9b969bca9e1419382082c780ad52fd53&utm_source=bing&utm_medium=cpc&utm_campaign=Shopping%20Campaign&utm_term=1100700384544&utm_content=All%20products
Do you mean these? They allow the use of rebar in the wall.
Do you mean these? They allow the use of rebar in the wall.
L
Leofric
I have seen farmers use them in sheds with steel bars in the holes filled with concrete but wondered what 'normal' building would require them.
Used some many years ago to build a small retaining wall, I found no difference than laying normal blocks except mortar needs to be a bit stiffe due to weight/bedding area being greater than normal blocks
An example of how to lay the bed joints.
https://www.bing.com/videos/search?...E8F6ED295E99F4B26D1BE8F6ED295E99F4B&FORM=VIRE
https://www.bing.com/videos/search?...E8F6ED295E99F4B26D1BE8F6ED295E99F4B&FORM=VIRE
L
Leofric
' An example of how to lay the bed joints.' - and how not to do perpends !
At first, I was wondering how they managed to spread the mortar on such a narrow (1"?) edge of the block. But then look carefully and you see they do it by running the trowel on its side along the block.
Yes, the perps do look very casual, but probably most blockwork walls would be rendered so maybe rain penetration is not a problem.
Yes, the perps do look very casual, but probably most blockwork walls would be rendered so maybe rain penetration is not a problem.
Their blocks are a bit thinner, smaller and lighter than ours, and the centre is thicker at the top to make it easier to pick up one handed. The real strength of this type of blockwork is the rebar and concrete grout infill. When pumped in wet it finds it's way into any gaps in the perps.
In places like California many of these block walls are facework. With all the earthquakes there isn't much brickwork. The standard of work is really high, you have to remember that this is a competition, so they are only meeting lowest standards.
In a block wall one block out line shows up more than one brick in a wall.
In a block wall one block out line shows up more than one brick in a wall.
my house is built with the inner leaf being hollow blocks, with webs. They're dense concrete, very hard and heavy. One of the old builders who worked on the development told me it was because it's a 3-storey house more than 10m and lightweight blocks were assessed not strong enough.
They were a bit of a pig to drill or chase before i had an SDS+
In Italy they use something similar made of clay, and I was told that UK traditionally uses more solid clay bricks because our clay contains more shale oil, so once in the hot kiln, they contain some of their own fuel which makes them cheaper to fire than if you had to pay for it.
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