Concrete Limestone in a riding arena? (outdoors)?

hey yall. so... we cleaned out our outdoor riding arena... and let me tell ya. it looks 110% better! no more weeds... nothing! just the barrels, and the sand on the ground! :) so... have yall heard of Concrete... show more hey yall. so... we cleaned out our outdoor riding arena... and let me tell ya. it looks 110% better! no more weeds... nothing! just the barrels, and the sand on the ground! :)

so... have yall heard of Concrete Limestone?

http://www.copyright-free-images.com/ful...

it's soft, and i dunno how absorbent it really is.
Ohio Mulch and Comp. said this would be good for the outdoor riding arena... but i don't want something that is so absorbent to make it slippery and puddled.

i know this is confusing... so here is my question! :)

- Should we use Concrete Limestone or just stick with the sand that is in the arena?
(i don't know why the material is called CONCRETE limestone, considering it's soft...) :S

thanks and no rude comments please.

to make this question more fun,
- brag about your horse! :)
6 answers 6