Concrete Mix For Driveway Uk

If it looks like a watery slurry or the ridges don t stand up the mix is too wet.

Concrete mix for driveway uk.

A strong concrete mix would be something like 1 3 5 cement sand coarse gravel. An overly wet mix can lead to finishing problems and a weak surface. If the depressions between the chops fill with cement slurry the mixture is okay. For example a simple sand and cement mix should be at least 3 part sand the aggregate to one part cement.

6 parts pre mixed ballast. In this case both the sand and gravel are the aggregate. A driveway 6 metres long by 3 metres wide and 100mm thick will require roughly 2 cu. For driveway paving the slump or stiffness of the mix should be about 4 inches.

There are now several companies across the country which are happy to deliver fairly small amounts of ready mix. For large driveways you should certainly consider using ready mix concrete which can be delivered by lorry. Concrete paint or vapour barrier paint is an inexpensive option for a driveway resurfacing project and can be purchased in a variety of colours and styles. How to lay a concrete driveway.

2 parts fine aggregate sand 4 parts coarse aggregate. If you are using premixed ballast then. For foundations a mix of 1 part cement to 3 parts sand to 6 parts aggregates can be used. A mix which has the right amount of water is smooth and consistent not over wet and runny nor dry and crumbly.

In pre mix concrete the aggregate is already mixed with the cement. For information on testing fresh concrete see air contentand density unit weight. As a guide watch the ridges as the top of the heap is chopped. Concrete mix ratio for a c20 and c20p portland mix.

Vapour barrier paint is typically sprayed on the surface but can also be applied with a paint roller and brush. Laying a driveway is one of the most popular uses for ready mix concrete properly done a finished concrete driveway will be attractive strong and long lasting but getting to that point will take a fair bit of preparation and patience.