concrete mix ratio

[duff67k]

hi , can you please tell me what mix to use i am laying a hard standing 5" thick for a stable to go on and am not sure what ratio ballast Vs cement , please help ,,,thanks

 

[tawelfryn]

I would use 1 cement, 2 sand and 6 gravel for this, its what is called a C15P mix, and is usually used in foundations, so ample strong enough for what you want

 

[duff67k]

thanks mate ,my sand and gravel is coming in ton bags already mixed so what should that be 8 to 1 ?

 

[noseall]

6 parts sand and gravel mixed to 1 cement

 

[duff67k]

sorted , thanks very much

 

[2scoops0406]

For reference in future, this site has all the necessary recipes for whatever type of muck you want.

 

[Moz]

duff67k
anything larger than 3m by 3m you should use reinforced steel wire mesh ..set in the concrete

 

[Lemmie]

How lond does concerete take to set? (approx 3.5mx1.5mx0.30m)

 

[noseall]

its hard enough to walk on after 24hrs, but is far to "green" to fix to or do anything else. if you could leave it over a weekend then it wont scuff so badly if you need to work on it.

 

[duff67k]

thanx moz , didnt even cross my mind , thanx m8
john