Bloody concrete companies

[saveasteading]

12 hours ago, JohnMo said:

not the cheap way to do anything. 

And yet... there is a premium for empty m3 in a big truck and the waste (and mess) or shortage can be costly.

 

Let's play.

1 barrowload. Shovel mix

2 barrows to 1m3   site mixer.

1 to 3m3. Volumetric

3+ ready mix.

 

A separate column for people unsure of quantities.

Site conditions and pour method  also change this.

@markcwith 3 wagons of volumetric.. what was the reason?

[saveasteading]

Just now, Oz07 said:

reckon they get told to because the mixes aren't upto spec.

Valid theory. It certainly reduces their risk for any future problem.

In reality, a lot of builders ask for extra water because it suits them and they don't know/ care that too much water is wrong.

[flanagaj]

Thanks all for putting my mind at rest.

[Nickfromwales]

4 hours ago, Russell griffiths said:

That’s the problem with those trucks you don’t know what you are getting until it’s in. 
3 x 8m trucks is 24m ask what a truck holds. 
unless you had 4 that is. 
I don’t like volumetric as I feel it never looks mixed properly. 

The 4th wagon of SCC was a lot thicker on the last one, and the guys on the dapple bar were sweating their arses off getting it to finish up. SCC starts to cure bloody fast!

 

 

[Nickfromwales]

2 hours ago, saveasteading said:

And yet... there is a premium for empty m3 in a big truck and the waste (and mess) or shortage can be costly.

 

Let's play.

1 barrowload. Shovel mix

2 barrows to 1m3   site mixer.

1 to 3m3. Volumetric

3+ ready mix.

 

A separate column for people unsure of quantities.

Site conditions and pour method  also change this.

@markcwith 3 wagons of volumetric.. what was the reason?

I saw volumetric being poured at a project in Ilford. That was for a technical raft foundation with stepped outer toes, crazy complicated.

 

Seemed to be a very good solution as calculating the volume required for that job would have been crystal ball o’clock.