Cement and perlite vs. cement and sand
I've been toying with the idea of using perlite instead of sand with cement. Ie. 1 part cement and 2 to 3 parts perlite to make a lighter mix and curing it as one does with the cement/sand mix. My objection to using a hypertufa recipe with peat is the cure time. I'm hoping I could cut down the cure time with the perlite. Has anyone tried this? What do you think?