Currently my wedding cake steps weight compartments are filled with pea gravel and water. I am considering filling them with quickcrete or portland cement to make them a bit heavier, and to reduce potential for spillage and algae growth inside compartments. Good idea? Bad Idea? If I do this, should I mix it first, or put it in dry and add water as I go?
Link is to a site with density info http://www.simetric.co.uk/si_materials.htm