Do you want to mix cement but not sure how to do it? this clip shows you how using sand, cement and water, I don't use pre-mixed material and just add water this is how it should be done, In the video I will be using a four to one measurments or in other words four shovels of sand to one shovel of cement powder 100kgs sand 25kgs cement powder, each job that requires cement needs different meaurments for my job here it is used to render a wall in this garden but if you are using the material for brick laying you would have a 3 to 1 mix, I should say that you should never mix on a road as you will be in trouble from the municipality as it will stain the tarmac but here every one does it and cleans up after, If it is your first time doing this job you might need some help taking turns as mixing on your own even a small amount like this will hurt your back by the evening so take turns and take your time, The main mixing is at the begining when the sand and cement are dry you will see a change of colour from red and grey to only grey and is done by making small piles, adding water is only to wet the material but this is a heavy job, instructions are in the clip of what I am doing and some tips, you could ask a builder to do the job for you who may employ a labourer to do the mixing but if you have the time and tools do have a go yourself it can be fun you will need a flat shovel a bucket, a wet wheelbarrow and a trowel, in the clip I dont show how i clean up but i do think it is a very important step of the job when a few hours have passed do the twist dance on all of the areas where you mixed this will crumble any spots into dust which can then be then swept up, do not use water as this will stain a larger area, then in the evening weep one last time OH that is if your not going to use 8'x 4' hard boards or thick plastic sheets you would clean them in the same way, be very sure you mix enough to do the job you are doing as if you should make to much you could be left with a hard problem to take to the local dumping ground, That's How to mix sand and cement by shovel