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View Full Version : Pour concrete over existing tile floor


surfdad
Jul 15, 2012, 08:30 AM
need to pour concrete over existing step down slab , depth about 4.5" and size is 22x10. The existing slab is covered with ceramic tile ,is it possible to pour over with no major problems?

creahands
Jul 15, 2012, 10:27 AM
If outside water will get between tile and concrete. In winter, water will freeze and crack concrete.

There is an additive u can paint on existing slab,not on tile, and add to concrete mix for added strength. Use wire mesh in middle of depth.

Chuck