Helpful advice from Belle in how to get your concrete mix right first time
posted in Helpful advice with concreting equipment on 20 June 2018
The correct mix ratio (cement: sand: stone) depends on the type of application; harder concrete requires more cement, rougher applications require more aggregate. The ratios given below are guidelines: best proportions may depend on the quality of sand/stone used.
First put in the water - around 7 litres (1½ gallons), using more or less depending on the type of mix required. Add some aggregate before adding cement, to avoid sticking. Work consistently to the ratio of ingredients for whatever type of concrete mix you are working to.
|Rough Mass Concrete||1||4||8|
|Waterright floors, tanks, pits, etc||1||1.5||3|