Mixing concrete- how long??

[KennyO]

Been mixing a wee bit of concrete with tractor mixer today- just a little hand load one. like this

Using premixed sand/ gravel and cement. Takes about 24 shovels of sand/gravel and a 25 kg bag of cement.

How long should I leave it mixing? I was leaving it about 10min mixing while I sorted out the previous batch.

 

[Penmoel]

Wow a Bamlett that brings back memories, mixed no end with one of those, top link end must be right length or it over tips and buggers the chain drive sprocket. Nearly cut the end of me finger of raising one of those legs that it stands on. Must admit was never sorry to see the second one go from here.

Sorry I digress

10 min should be fine as long as its a consistent mix, not to dry in the back, if the machine is leaning back to much and overfilled just as any mixer the back wont mix too well. Again as with any mixer water first in.

 

[KennyO]

Wow a Bamlett that brings back memories, mixed no end with one of those, top link end must be right length or it over tips and buggers the chain drive sprocket. Nearly cut the end of me finger of raising one of those legs that it stands on. Must admit was never sorry to see the second one go from here.

Sorry I digress

10 min should be fine as long as its a consistent mix, not to dry in the back, if the machine is leaning back to much and overfilled just as any mixer the back wont mix too well. Again as with any mixer water first in.

thanks

never knew water in first.

 

[Mydexta]

When you empty previous batch pour in a % of the water content of you're next batch . That way it cleans the drum a bit then when you start the next batch, make up to 50-75% water then add rest of mix. Add remaining water as needed.

 

[S J H]

When you empty previous batch pour in a % of the water content of you're next batch . That way it cleans the drum a bit then when you start the next batch, make up to 50-75% water then add rest of mix. Add remaining water as needed.

Same, and I'd put in 12 shovels of ballast, cut the bag in half with a saw, stick half in, then the rest of the ballast and the rest of the cement. It should be mixed near enough straight away.

 

[KennyO]

Same, and I'd put in 12 shovels of ballast, cut the bag in half with a saw, stick half in, then the rest of the ballast and the rest of the cement. It should be mixed near enough straight away.

That was the techinique I was using. However wasn't putting water in till last.

 

[S J H]

That was the techinique I was using. However wasn't putting water in till last.

If you put half the water in first it will mix quicker. Also if the mixer is dirty it will stick to the sides. Put some gravel or mot in the mixer to clean it.

 

[roscoe erf]

Same, and I'd put in 12 shovels of ballast, cut the bag in half with a saw, stick half in, then the rest of the ballast and the rest of the cement. It should be mixed near enough straight away.

What mix rate is that

 

[snowhite]

What mix rate is that

depends on how big the shovel is

 

[S J H]

What mix rate is that

That's 5 to 1.

 

[David.]

To be anything like premix C35 mix, needs to be nearly 3.5 to 1

 

[willie waver]

I mixed thousands of loads with one of those things in my youth. was a little barsteward for the chain coming off too

it was always, bucket of water in first, then the bag of cement, start it turning, then 13 shovels of sand and 26 shovels of chips. it pretty much was well mixed by the time I'd finished shovelling

 

[Penmoel]

I mixed thousands of loads with one of those things in my youth. was a little barsteward for the chain coming off too

and some say they had a misspent youth....


mine was the same as yours

 

[Sandy]

So what's the mix of C50

 

[Blue.]

We started with a Lawrence Edawrds like this

(except ours had a finger trapping tipper linkage) we wore the sprocket out and it was done for after that.

Replaced it with a teagle spiromix,far better mixer.

 

[Blue.]

So what's the mix of C50

400kgcement/cube.

 

[S J H]

400kgcement/cube.

Do you still mix your own @eulb or do you use readymix? I've had 3 loads in today and paid £77 per cube for c35. I can't see how it pays to keep mixing?

 

[Sandy]

Do you still mix your own @eulb or do you use readymix? I've had 3 loads in today and paid £77 per cube for c35. I can't see how it pays to keep mixing?

That's roughly £20 cheaper than here

 

[Blue.]

Do you still mix your own @eulb or do you use readymix? I've had 3 loads in today and paid £77 per cube for c35. I can't see how it pays to keep mixing?

Only mix small amounts with pan mixer now,I sold my wagon about twelve months ago.

Ready mix hasn't dropped but stone and cement have crept up,I was mixing c35 for £50/cube at one stage,saving £32/ cube

 

[Blue.]

That's roughly £20 cheaper than here

£10 cheaper than here.