Add water while mixing until desired consistency. Despite popular belief, there is no exact formula. It not like cake mix.
That depends on the mix, there are hundreds of different mixes of concrete. A basic mix of concrete (say a blended RC25 mix) has 1000kg of sand, 1000kg of stone, 150kg of OPC cement, 125kg of GGBS slag, 1.3lt of WRA and 75lt of waters PER CUBIC METER. Regards Colin, a Tarmac concrete batcher.
Lean mix concrete is used for substructures like foundations,piles,etc.,Ready mix concrete is used for superstructures and also for mass construction.Generally, quality of ready mix concrete is good when compared to the lean mix concrete.Workability of lean mix concrete is high when compared to RMC.
Basic components in concrete are,cementFine aggregatesCoarse aggregateswater.
Concrete mix is made from (sharp)sand, cement, aggregate and water. The ratios depent on the usage
1:2
Concrete mix is made from (sharp)sand, cement, aggregate and water. The ratios depent on the usage
Concrete :- a mix of cement, sand, water, and gravel. Mortar :- a mix of cement, sand, and water
Concrete :- a mix of cement, sand, water, and gravel. Mortar :- a mix of cement, sand, and water
The strength of concrete depends on the mix used to make it- ratio of cement, sand, gravel and water. If the mix does not produce a concrete that is strong enough, the concrete will break.
Its the process of selecting suitable ingredients of concrete and determining their relative amounts with the objective of producing a concrete of the required, strength, durability, and workability as economically as possible, is termed the concrete mix design.
The concrete mix should be a 5:1 Cement to water ratio. make sure you mix thoroughly when adding water. Look up "Concrete slump test"
That depends on exactly what use that particular concrete mix is for.