Type 1 or recycled crushed for ground bearing slab?

[flanagaj]

Just a general question for those who have been there and done that.  I need to order 30m2 of type 1 or crushed concrete for the ground bearing slab.  That equates to 72 ton and type 1 is £33.50/ton

Recycled crushed will probably save me half that amount, but I wanted to ask what people's thoughts are on type 1 vs recycled.  The ground below is flinty as anything and then it goes to chalk, so I don't think there are any concerns about settlement.

[Nickfromwales]

15 minutes ago, flanagaj said:

Just a general question for those who have been there and done that.  I need to order 30m2 of type 1 or crushed concrete for the ground bearing slab.  That equates to 72 ton and type 1 is £33.50/ton

Recycled crushed will probably save me half that amount, but I wanted to ask what people's thoughts are on type 1 vs recycled.  The ground below is flinty as anything and then it goes to chalk, so I don't think there are any concerns about settlement.

Check with the SE, they will have specified?

[flanagaj]

21 minutes ago, Nickfromwales said:

Check with the SE, they will have specified?

Just checked and their spec just states hardcore (looks like a lifted and shifted spec) 

[Nickfromwales]

1 minute ago, flanagaj said:

Just checked and their spec just states hardcore (looks like a lifted and shifted spec) 

In that case you just need to choose for yourself, and ensure any details for layering / compaction are observed.

 

Have this chat BEFORE anyone starts work, not after............... 

[flanagaj]

9 minutes ago, Nickfromwales said:

In that case you just need to choose for yourself, and ensure any details for layering / compaction are observed.

 

Have this chat BEFORE anyone starts work, not after............... 

I'm going to do this job myself.  

[Nickfromwales]

Just now, flanagaj said:

I'm going to do this job myself.  

Use your rage to punch-compact the bastard  

[Mr Punter]

Crushed concrete / brick will be OK but not any old crap with plaster, wood, rubbish mixed in.

[saveasteading]

Crushed is fine if clean but there is a middle ground if a supplier will sell it graded a type 1.

 

 

BUT

30m2 x say 0.2 is 6m3.

X 2.4t/m3 is 14.4tonnes.

 

Think of it another way. Does this look big enough for 3 lorry loads, or more like one?

Edited 7 minutes ago by saveasteading