That's got to be recent as your sporting a lockdown hair style
If it was i should be locked up for that jumper...lol 1976
Concrete mixing ratios and quantities
- Thread starter oxfordshirestalker
- Start date
If it was i should be locked up for that jumper...lol 1976
paul dillon
Well-Known Member
Not sure how much you have to mix but I've bit the bullet have to pour around 7 cube around 40m from front of house to bases 2 No so got in Fiber concrete and a concrete pump coming a week on Saturday £285 for pump and cost of 1 load of concrete be finished with pump and mixer in about 20 mins but saves all messing about with mixing and barrows and will only take two of us ohh sorry three wife making bacon sandwiches and cold drinks
An 8 and 2 mix fills a barrow without slopping if it's wet concrete. 10 and two if its mortar.
9:1 is far too lean for concrete unless it's just for grouting holes and plugging old pipes. Wants to be 4:1.
I wouldn't try and mix my own ballast. It isn't just sand and shingle, it's a mixture of all grades in between as well.
9:1 is far too lean for concrete unless it's just for grouting holes and plugging old pipes. Wants to be 4:1.
I wouldn't try and mix my own ballast. It isn't just sand and shingle, it's a mixture of all grades in between as well.
Norfolk Horn
Well-Known Member
Well you have certainly made the right decision. You would need a small army to barrow and finish that sort of quantity.
Modern pump with wireless control the operator can place it just where you want it.
Concrete done properly is a skill which is very underrated, if you dont know what your doing and have the right equipment you can end up with a right old mess you have to live with.
dartmoordog
Well-Known Member
I see the big collar Tim, and I bet they are flares and stripe socks inside those wellies! 
I see the big collar Tim, and I bet they are flares and stripe socks inside those wellies!
Not much has changed.......apart from the socks....
Hand me downs lol....still got the mixer and my gauge shovel ( a spear and jackson)
paul dillon
Well-Known Member
Been in the Civil engineering for over 35 years laid lots of floors and bases not so nice this hot weather saying that not nice in the rain neither but its nice to be semi retired and have some contacts not to bad a slab one 5.4 x 5m the other 4m x 2m all the right kit and early morn so won't be to bad (unless pump breaks down
Some mixer lorries now have extendable conveyors instead of chutes which can be swung left and right and extend or retracted as they pour. The driver controls it with a remote. They reach a surprisingly long way. I've poured foundations with them. With a good driver on the control box it's pretty much a one man operation to rake out and trench tamp as you go. And no pump hoses to lug about.
Norfolk Horn
Well-Known Member
No pump hoses to lug about with the right kind of pump you just give the overhead type a gentle cuddle
Norfolk Horn
Well-Known Member
While your statement is true, accessibility and the over all area of the pour and finish required makes a tremendous difference to the kind of equipment that is required on each individual job.
Ok a set of footing with good access draw up and discharge. One man no fancy finish going to get covered up as in the case of footings.
Job done spot on
Large pour multiple loads, very restricted access or you cant get the lorry close to the work, add in a nice stiff slump or quiet a few columns to pour now that's a diffrent ball game.
Now with all due respect what I know about hedge laying is very very limited but I have been in this industry for more than 40 years starting as a apprentice carpenter and ending
up as a senior site manager for one of the biggest civil and building companies in the country.
Each tool or piece of plant has to be chosen by its merits for each specific job.
Just done a garage floor. A friend who has been in the building trade all his life and is 70+ was the team leader. We put some water in mixer, the some aggregate, then some cement all by shovel. More aggregate then the rest of the bag of cement and adding water along the way to suit. We used the mini belle mixer and he explained it's a half bag mixer(thats the now a current whole bags because they make them that way now) and you put aggregate in until it's full. We had 4 people in the team and could mix on site, 3 people would have worked. 2 basically laid it(tamping and screeding as they went), 1 person shoveling and 1 on barrow/helper. After all the tamping and screeding was done he troweled it off. Then he came back and floated off after about 3 hours later. The next morning he came back and sprayed the surface with water. We done a section about 3x4 m in about 2.5 hours. I had prepared other little pieces that i wanted concreted so as not to waste any concrete that was mixed but not used on the main project
SAUER20222250
Well-Known Member
OK, what about plasticisers, super plasticisers, reinforcing, steel or steel fibres or Poly fibres, retarders or accelerators or cement to water ratios? You will never get an even design mix out of a half bag mixer and you wouldn't believe the cement that goes in a cube of say 30N mix, some 350kgs/M. Buy it in and ask the sales contact for advice.
SAUER20222250
Well-Known Member
20kg cement a metre guys... Greek cement with varying strengths and have seen it still like putty after a week. These guys profits are in the least cement they can get away with.
What is your experience in all those materials? my guess the op has a home project which would not requite the above.
The hundreds and hundreds thousands of houses built by ground workers also (and still standing firm) gangs of bricklayers with lads behind the mixer getting it right day in day out with out the above.
I have dug footings, step footings, tied in to existing footings with roo bar all passed by a BI
Run the barrow from 6 yard truck mixers also on small footings mixed it ourselves....
Cut through back of peoples garages to barrow the gear out and in then Dad bricked up the hole afterwards.
Also kept 2 bricklayers, floor screeders going all out of a mixer...
Tim.243
SAUER20222250
Well-Known Member
Aye, true.....Edinburgh Castle is just sitting on one stone.
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