[TowerTalk] concrete forms

[Alan NV8A]

My understanding is that -- in the US, at least -- the specified 
strength of concrete is achieved only after 28 days. What percentage it 
would have achieved after two days, a week, two weeks, etc., I don't know.

I have been quoted an 8-week delivery delay for the tower I have in 
mind, but I can get the base plate and bolts delivered ahead of time so 
that the concrete will have had at least the full four weeks to harden 
before I put any load on it.

Alan NV8A


On 07/31/06 11:23 am ADRIAN REES wrote:

> Over here in the UK, I am about to "plant" 4 towers, and pour C35 Grade Concrete in the bases. Anyone know what is the setting time for this stuff, and can it poured in one or two lots ? Getting this amount of concrete onto the site is not easy. I live up a mountain, with access limited to 4 Wheel Drive vehicles, and certainly a Truck will be near impossible to get on site, let alone a Ready Mix Concrete one ! So I may have to mix on site, and pour in batches.
>  
> Comments ?