Pouring of concrete in columns and walls if the height of these elements is large then it is recommended to place concrete in layers.
Pouring a concrete wall in sections.
Once you have mixed the cement in the cement mixer dump it into the wheelbarrow.
So that won t work for a slab this size.
Finish the surface of the wall as desired.
Pour in sections pour the concrete in small sections spreading the concrete by moving the chute back and forth and by having the driver pull forward as you go.
Roll the wheelbarrow of cement over to your wooden forms and pour the cement into the footing and form area.
If the wall exceeds four feet in height footings should be poured separately.
Ready mix concrete trucks the big concrete trucks that deliver concrete and spin usually have a three yard minimum order.
The smaller areas allow for more control and the ability to take the pressure off the entire piece holding large amounts of weight once it has dried.
Pour the retaining wall.
Follow the instructions on the bag of cement and mix accordingly.
Pouring concrete in sections can also extend the life of your poured surfaces as the weight from a huge slab is not weighing in on the center of the piece like on huge slabs.
Pour footings and wall.
Allow concrete to cure.
The layer thickness ranges from 300mm to 500mm and the time between successive layers should not exceed 30 minutes for normal weather condition and 20 minutes for hot weather condition.
Once the truck has reached the end of a section spread the concrete out evenly and a touch higher than the form with a concrete placer rake.