Iam going to tile the kitchen and dining room floors with ceramic tiles.The floors are bare concrete (about 9 years old),the dining room is carpeted and the kitchen has vinyl tiles.I know i will have to remove all the adhesive from under the vinyl tiles but what do i then do to the bare concrete.The rapid set adhesive mentions the dreaded PVA word ,do i follow this advice?Thanks.

Check the instructions for preparation on your adhesive. Follow them to the letter and you'll be fine.

Thanks for the replies,i will follow the advice on the adhesive,it is a lovely flat concrete floor all the way through both rooms and i don`t think it will be necessary to screed it.I have done a fair bit of wall tiling but have allways used redimixed adhesive and this rapid set stuff is totally different. Thanks.