materials needed for making (lego type) concreate blocks

[lord mud of the flyes]

38 minutes ago, markc said:

Free standing gate? Rolling gate would be much easier than a swing gate in this case.

as above, a 205l barrel filled with concrete will be around 500kgs, that doesn’t give you much unless it’s a light gate, quite narrow or end of gate runs on a support wheel.

I dont understand what you mean; can you draw a diagram please

[lord mud of the flyes]

43 minutes ago, JohnMo said:

The steel of the barrel. Just throwing ideas out there, you have your plan I'll leave to get it done.

you are not surgesting that the wall of the barrel is going to be strong enough are you?

[saveasteading]

 2 x half gates will be more stable

 

Quick sum. All approximate.  45 gallons, 200 litres.

Concrete is 2200kg/m3.  so 440kg.

 

A big bag of ballast is 800kg. 

So with cement and water one bag will do 2 barrels, approx. If not quite, then chuck in some rubble.

Presumably you will cut the tops off the drums. 

 

 

 

[Onoff]

ChatGPT says:

 

[lord mud of the flyes]

15 hours ago, saveasteading said:

 2 x half gates will be more stable

 

Quick sum. All approximate.  45 gallons, 200 litres.

Concrete is 2200kg/m3.  so 440kg.

 

A big bag of ballast is 800kg. 

So with cement and water one bag will do 2 barrels, approx. If not quite, then chuck in some rubble.

Presumably you will cut the tops off the drums. 

 

 

 

So if i mix a 800kg bag of ballast with a bag of concreate and water; you think it will set? and hold the gate hinges?

[Onoff]

7 hours ago, lord mud of the flyes said:

So if i mix a 800kg bag of ballast with a bag of concreate and water; you think it will set? and hold the gate hinges?

 

It won't set particularly well and be a very weak mix if you're talking about a standard bag of concrete. For an 800kg bag of ballast you'd need x5 20kg bags for an 8:1 concrete mix or x10 20 20kg bags for a 4:1 mix.

 

You might achieve a circa 500kg barrel weight with a well vibrated mix, probably a bit under. 

[saveasteading]

7 hours ago, lord mud of the flyes said:

you think it will set? and

No and no.

 You don't need us here to tell you all these basic things. The Internet will tell you the cement to ballast mix, or look at rhe cement bag, or ask at the merchants when buying 8 bags for starters.

Report back on completion please.

You didn't say why you couldn't dig a hole for a post.

What will the gate be an opening in? Fence/ between buildings?

[torre]

Posts set in the ground will be so much simpler and safer. Your drum will tip.

 

If you really can't do that then for something temporary maybe drop a bulk bag of something cheap on each side and build a timber frame tight around it to support your gate.

 

No need to mix concrete and you can reuse the MOT/sand etc later.