What is water/cement ratio?
some of one and a bit of the other
Brush the dirt off the bag,the instructions are on the sack.
The water–cement ratio is the ratio of the weight of water to the weight of cement used in a concrete mix and has an important influence on the quality of concrete produced. A lower water-cement ratio leads to higher strength and durability, but may make the mix more difficult to place. I work for a construction company and i know that you always need water to mix with the concrete - in the winter you have to heat the water first and it costs more to get it poured than in the summer when you don't.
The whole process depends on what you are using the cement for. If you are cementing in fence posts, as an example, you mix one part cement, 7 parts sand, and about 2 parts gravel. mix that all dry first then add a little water at a time and mix thoroughly. Adding water in intervals so that the consistency is like wet sticky sand. (Not soupy). OK if you are making a deck or something to walk on, then you up the cement content by reducing the amount of sand per measure of cement. (3 parts sand to 1 part cement 2 parts gravel. Do the water mixing the same. Now if you're using Ready Mix. all you do is again just add a little water at a time-mix-add more water-mix until the consistency is like that of wet sticky sand. The dryer the mixture the harder the concrete will be once dry and hardened. The more water you put in the mix, the weaker you will be making your concrete. A wet sloppy/soupy mix is easier to pour but makes the cement float out on top of the pour and weakens the concrete after it has dried.
