screeding mix

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guys... what mix to use for screeding over a concrete base??? what sand type and ratio and whether or not to use grano if so what ratio and with what sand.. any suggestions would be highly appreciated
 
i use half a bag of opc to 12 shovelfuls of sharp sand, i'd also slake the concrete with 50/50 sbr and water.
 
Pug said:
i use half a bag of opc to 12 shovelfuls of sharp sand, i'd also slake the concrete with 50/50 sbr and water.

Have you got a very ikkle shovel Pug as 12 of my shovelfuls to half a bag would be a bit weak, or do you just call these modern bags half bags unlike the proper bags we used when we were lads?
 
its a mans shovel andy! lol

perhaps i should explain my method, bearing in mind anything bigger than 20m2 gets premixed.

i use a baby belle mixer.

cut bag of cement in half. chuck it over the sharp sand, by spreading it on the sand its already slighty mixed before going into mixer, throw 12 shovelfulls of sharp sand and cement into mixer this equals approx 5:1 mix, tip out straight away even if its not completely mixed. you've still got to spread it and level it which'll finish the mix.

lay screed, take money, hit pub.

this is how i was shown by an irish screeder who'd been 50 (yes 50!) years in the trade.
 
If he was irish then it must be the truth ;D. 4:1 only knock up a barrow at a time in the mixer, brown sugar= succsess! ;)
 
Pug said:
its a mans shovel andy! lol

perhaps i should explain my method, bearing in mind anything bigger than 20m2 gets premixed.

i use a baby belle mixer.

cut bag of cement in half. chuck it over the sharp sand, by spreading it on the sand its already slighty mixed before going into mixer, throw 12 shovelfulls of sharp sand and cement into mixer this equals approx 5:1 mix, tip out straight away even if its not completely mixed. you've still got to spread it and level it which'll finish the mix.

lay screed, take money, hit pub.

this is how i was shown by an irish screeder who'd been 50 (yes 50!) years in the trade.


Makes more sense to me know Pug although I can't get twelve shovels of anything into by little Belle mixer unlike my loverly Winget 150T
 
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