pre mixed cement just add water

mikeyboo

im just wondering are theses bag of cement that you just add water to,i have 6x3 timbers in the ground as main posts for a shed.. will these bags be up to the job for the job im doing?

who the fug

mikeyboo wrote: »

im just wondering are theses bag of cement that you just add water to,i have 6x3 timbers in the ground as main posts for a shed.. will these bags be up to the job for the job im doing?

My experience of timber buried in concrete was it rotted very quickly at the bottom, so I would think that is a bigger issue

red sean

You'll need to thoroughly soak the bottoms of the posts in creosote or some other good preservative first as mentioned above.
Also it needs to be a gravel/cement mix and not sand/cement you use.

mikeyboo

so no need for sand so?

red sean

Not enough strength in sand, you'll need gravel. Sand mix is ok for patching plaster or laying a few bricks.

Boiled-egg

Use a post holder bedded in concrete. Something similar to the picture

Boiled-egg

Sorry forgot to attach picture first time.😉

stoneill

You could use postcrete - formulated to set wood in concrete. OK for one or two posts but a bit expensive if you have a number of posts to do.