mixing SBR screed

[sm_jamieson]

I'm guessing Tim may answer this !! Mixing the dryish mix in a normal cement mixer, I tried to mix the cement and sand basically dry first. You have to do this to gauge the liquid correctly, since it suddenly gets "too wet" and putting the water in first would not work for such a dry mix - it would just totally clag up at the back of the mixer. I put the sand in first, then the cement, but still found the cement tends to get stuck at the back. This means various manual interventions to get the stuff mixed properly. But when you are mixing a laying on your own, you really need to mixer to do all the mixing ! Any ideas / experience ? Cheers, Simon.

[Tim Watts]

I'm not sure what to suggest Simon.

You're doing the same as me. Maybe my mixer handles differently or maybe I was doing most of mine in the hot weather and materials (esp sand) were dry.

I may have had to use a stick occasionally to get a blob to come of the back of the mixer but it wasn't often.

How big's your machine? Mine is a rusty old full-size (with the domed motor casing on the right a-la Clarke.

[sm_jamieson]

Its a belle mini-mix. The sand was slightly damp (in bulk bags under a tarpaulin). I'll let you know if I find a solution. There always is one ;-) Cheers, Simon.

[Jim K]

anyway you can tip the mixer forward a little ~25mm piece of wood under the rear legs?

had this problem (with ordinary mixes) in an old benford tipup mixer, couple of bits of wood helped it enormously tho watch our for the reduced capacity whilst so tipped - tho as you say it's a dry mix you may be OK...

Jim K

[sm_jamieson]

Good idea, I just realised the mixer could be tipped back a bit more that before, since I moved it from the ground to up on the stand. I'll give it a go. Thanks, Simon.

[Tabby]

I suspect thats the answer too

NT

[Jim K]

er "back a bit more"?

to be clear I mean lean it forward a bit more "horizontal" (rotating slightly more parallel with the ground) as opposed to a bit more "vertical" (rotating nearer 90 deg to the ground)

Jim K

[sm_jamieson]

Ah, language problems. I meant that it could currently be in a state of being more tipped back than it was before. It could be tipped more forward to solve the problem. Simon.

[John Rumm]

I borrowed one once where it mixed better if one stuck a couple of 2x2" offcuts under where the legs met the stand - to stop it leaning back so much.