Ground floor with mosaic tiling and external wall

The figure below shows a section of a solid ground floor with mosaic finish meeting an external brick wall.

        external wall (230 mm)
     |<---------->|
     |  plaster   |     skirting (mosaic, 100 mm)
     |            |  _/| 
     |            |_/__|__________ mosaic topping 12-15
     |            |....................... mortar 1:3, 25
     |            |ooooooooooooooooooo PCC 1:2:4, 100
     |   DPC      |=====DPM (polythene)===
     |            |xxxxxxxxxxxxxxxxxxx hardcore 150
  GL |            |///////////// compacted earth
     |  plinth    |
     |  foundation|
     +------------+

Details from the top down

• Mosaic finish: marble/china pieces in cement paste, 12-15 mm, with glass or brass dividing strips, ground and polished.
• Mortar bed: cement-sand 1:3, 25 mm, to level and bind.
• Concrete bed: PCC 1:2:4, 100 mm, laid over the whole room.
• Damp proof membrane: polythene sheet, joined to the wall DPC to give a continuous barrier.
• Hardcore: 150 mm of brick or stone ballast, rammed.
• Compacted earth fill in 150 mm layers.
• DPC: 25 mm of cement mortar (1:2) or 40 mm of cement concrete (1:1.5:3) with a waterproofing compound, at plinth level above the finished ground level (plinth usually about 450 mm).
• Skirting: mosaic skirting 100-150 mm high on the wall, flush with the plaster, to protect the wall and give a neat edge.