What's the difference in the three ? When/why would you use one and not the other...?
I am going to create a little drainage area around my downspouts with river rock type pebbles and one of the above cements as a base to carry the water away and on to an underground drain pipe grid.
Which of the three 'cements' would be best and why ? there will be little stress on these "spillway" type slopes leading to the in-ground drains
Thanks, Tim
p.s. Live in Phoenix...no freeze thaw here in winter