Concrete washout facilities

[flanagaj]

To date, the bricklayers and myself included have simply washed mixers out and discarded the washout water onto the ground.  I am curious as to what others do as most of the options available for capturing washout are for large sites where they can have dedicated washout bins and recycle the water.  For a domestic self build, that approach is not obviously not viable.

We don't have any water courses / drains in the vicinity and water table is 60ft below.   

[Mr Punter]

For concrete I use a sheet of 18mm OSB and some 4 x 2 to form a tray, lined with polythene.  Let the concrete go off, then break it up and use it as hardcore.

[flanagaj]

36 minutes ago, Mr Punter said:

For concrete I use a sheet of 18mm OSB and some 4 x 2 to form a tray, lined with polythene.  Let the concrete go off, then break it up and use it as hardcore.

Ok, thanks.  What about washout water from mixers and concrete readymix trucks?

[Mr Punter]

Just now, flanagaj said:

Ok, thanks.  What about washout water from mixers and concrete readymix trucks?

 

Just get them to hover over your tray and crap the contents out.  It is a bit messy but it will be fine.  Water dries up, concrete sets and can be broken up.

[Conor]

I made sure the washout area was a spot that would be later paved / concreted over. Each time there was a dump of concrete or cement, I'd rake it out flat and level. Ended up covering a good 20m²+ and 100mm+ thick by the time we were done. Concrete pumps produce a lot of waste!

[JohnMo]

We had huge pumping lorry 4 times, so a lot of wash water and unused concrete. Basically got it dumped on our driveway, then broke up before it fully set where it was bit thick. All of it is under our drive way.