cement or mortar or concrete?

[noseall]

okay thank you so i have the gerneral purpose cement purchased from b&q and i have some building sand also purchased from b&q what ratio should i do for just plastering the chimney wall. as the chimney wall was plastered before but the previous owner removed the plaster and now only bricks are showing but i have painted it in white color.

i know ratio is 4:1 sand and cement for general thing like brick layer but what should i do but plastering the chimney?

You really don't want to be (sand/cement) rendering an internal wall, especially one that has been painted.

PVA the wall and then either dab plasterboard to it and skim, or use an internal backing plaster-coat (thistle bonding coat, hardwall etc) and skim.

 

[richardmm]

You really don't want to be (sand/cement) rendering an internal wall, especially one that has been painted.

PVA the wall and then either dab plasterboard to it and skim, or use an internal backing plaster-coat (thistle bonding coat, hardwall etc) and skim.

okay noseall thank you thisi was wondering today if i get normal rocks and small stones normal from garden as my garden has too much of this and i mix cement with it will it turn to concrete?

if i know this then in future it will save me from buying aggregate product

 

[noseall]

okay noseall thank you thisi was wondering today if i get normal rocks and small stones normal from garden as my garden has too much of this and i mix cement with it will it turn to concrete?

if i know this then in future it will save me from buying aggregate product

If it's clean and mixed with the right 'fines' then yes. Sounds like a right ball-ache when you can just as easily buy a bag of ballast.

 

[richardmm]

If it's clean and mixed with the right 'fines' then yes. Sounds like a right ball-ache when you can just as easily buy a bag of ballast.

hello sir how are you today cousin told me he buy property maybe thinking but on building certificate he not see the middle wall from living room and sitting room removal ceritificate he ask me i know?

i said wait . now i ask you because i think you clever in this subject

why no certificiate for middle wall removal the picture shows beem in middle but i no see certificate?

i saw certificate of loft to attic doomer and rear shed but not this?

 

[noseall]

hello sir how are you today cousin told me he buy property maybe thinking but on building certificate he not see the middle wall from living room and sitting room removal ceritificate he ask me i know?

i said wait . now i ask you because i think you clever in this subject

why no certificiate for middle wall removal the picture shows beem in middle but i no see certificate?

i saw certificate of loft to attic doomer and rear shed but not this?

Ask your cousin to post a query and start a thread.

Most likely the beam/wall knock out job wasn't applied for, or that it was enveloped under one bigger single application?

 

[richardmm]

Ask your cousin to post a query and start a thread.

Most likely the beam/wall knock out job wasn't applied for, or that it was enveloped under one bigger single application?

yes there was kitchen extension so maybe that wall removal went part of kutchen? thank you very much

 

[richardmm]

You really don't want to be (sand/cement) rendering an internal wall, especially one that has been painted.

PVA the wall and then either dab plasterboard to it and skim, or use an internal backing plaster-coat (thistle bonding coat, hardwall etc) and skim.

noseall person hello

why cant i use cement and sand 1:5 ratio on the chimney?

the chimney has bricks but the pointing isnt the best but its not plastered i had spare cement so im thinking can i just put sand and cement mixture on it and smooth it out then paint it?

please reply

 

[CountryFan]

noseall person hello

why cant i use cement and sand 1:5 ratio on the chimney?

the chimney has bricks but the pointing isnt the best but its not plastered i had spare cement so im thinking can i just put sand and cement mixture on it and smooth it out then paint it?

please reply

It needs to withstand the elements so usually a 3:1 ratio is used.

 

[phatboy]

noseall person hello

why cant i use cement and sand 1:5 ratio on the chimney?

the chimney has bricks but the pointing isnt the best but its not plastered i had spare cement so im thinking can i just put sand and cement mixture on it and smooth it out then paint it?

please reply

You have building sand, where as you would need plastering sand. rendering (Which is what you propose) doing isn't going to look good until you have a decent amount of practise.

@Stuckinarut thinks you want to do the outside of the chimney, but if it's inside, 1:5 would be OK. But... it will look rough without an experienced hand.

 

[richardmm]

ok so i fi use cement and sand will it work and be smooth i will be careful applyoing it

 

[JohnD]

Opinions vary, but although I can plaster patches and chases, I find a larger expanse easier with a sand and cement render. It has a much longer workable period.

It is not smooth enough to paint (except in a shed or garage) and needs a finish skim later.

 

[Jurassicspark]

ok so i fi use cement and sand will it work and be smooth i will be careful applyoing it

Yes, but do finish it with a finishing coat.