Posted: Sat May 23, 2015 12:07 pm
Hi, everyone, i am going to have some indian sandstone paving laid soon, but what i would like to know is can i just use a standard 3-1 mortar mix using normal builders sand which my builder says will be ok, but every where i read it says to use a 6-1 sharp sand and cement mix or a sort of half and half of the 2 sands. What is the reason for using sharp sand. Thanks.