Omega Owners Forum

Chat Area => General Discussion Area => Topic started by: Elite Pete on 22 July 2009, 17:42:12

Title: Concrete advice
Post by: Elite Pete on 22 July 2009, 17:42:12

I have been taking down my old hedge, digging up the roots and replacing it with a new fence a with concrete posts. Now the posts are 8ft tall and i've buried them 20" deep using post-crete but the last 3 I did last week are loose, the only difference between the last 3 and the first 9 was it started to rain while I was erecting them. I have just dug up one of the last posts to go in and the concrete seems easy to break, does anyone know if that is a result of the rain. Oh and i'm using 2 20kg bags of postcrete per post.

TIA :y

Title: Re: Concrete advice
Post by: Bourne on 22 July 2009, 17:50:24

2 20 kg bags per post! Christ! how big is the hole!Anyway, the blue circle post crete or the stuff you buy in Wickes etc doesnt ever go off like concrete. Its more like a dense chalk when it's cured.If it stays wet, its usually because you didnt mix it enough when it was in the hole.

Title: Re: Concrete advice
Post by: Jimbob on 22 July 2009, 17:53:26

Making sure the wife stays buried eh Pete?

Title: Re: Concrete advice
Post by: Elite Pete on 22 July 2009, 17:55:21

Quote

2 20 kg bags per post! Christ! how big is the hole!Anyway, the blue circle post crete or the stuff you buy in Wickes etc doesnt ever go off like concrete. Its more like a dense chalk when it's cured.If it stays wet, its usually because you didnt mix it enough when it was in the hole.

It is like dense chalk, very easy to break off the post. I have used 2 bags and a big hole due to it being very open because around the back, were opposite a school field.

Title: Re: Concrete advice
Post by: Elite Pete on 22 July 2009, 17:56:06

Quote

Making sure the wife stays buried eh Pete?

It would take more than a couple of bags to keep her down ::)

Title: Re: Concrete advice
Post by: RobG on 22 July 2009, 18:06:49

Forget postcrete. Best mix is 6/2/1. 20mm ballast/building sand/cement

Title: Re: Concrete advice
Post by: Bourne on 22 July 2009, 18:17:59

If It's going to get some abuse, best to use sand & ballast as Rob says. Nothing worse than looking at it later to find some little git has climbed on it and made it wonky.

Title: Re: Concrete advice
Post by: Marks DTM Calib on 22 July 2009, 18:53:00

Yep, 8:1 Ballast:Cement

Postcrete is shite and pricey

Title: Re: Concrete advice
Post by: Tony H on 22 July 2009, 18:59:13

Quote

Forget postcrete. Best mix is 6/2/1. 20mm ballast/building sand/cement

Good old home made concreate will even go off underwater :y

Title: Re: Concrete advice
Post by: Andy B on 22 July 2009, 19:23:35

I just used a couple of these when I put a post back in the other week ...... http://www.wickes.co.uk/Concrete/invt/220189 It's still up so far!  ::)  ::)  :y

Title: Re: Concrete advice
Post by: Marks DTM Calib on 22 July 2009, 19:43:47

A couple of these

http://www.wickes.co.uk/Ballast/invt/220111

and this

http://www.wickes.co.uk/Mastercrete-Cement/invt/220023

is cheaper.......thought you northerners were tight  ;D :D :y

Title: Re: Concrete advice
Post by: Andy B on 22 July 2009, 21:53:58

Quote

A couple of these

http://www.wickes.co.uk/Ballast/invt/220111

and this

http://www.wickes.co.uk/Mastercrete-Cement/invt/220023

is cheaper.......thought you northerners were tight  ;D :D :y

But mine was easier to use ... straight out of the bag into the hole - via the wheel barrow fro a mix ....  ;D  ;D