concrete benchtop method

The overall result of our very successful concrete benchtop.

Found the flattest surface in our house and measured twice and drew an outline of the desired bench and inset sink on the form ply, formed up the shape with scrap timber and more form ply for the edges that required a smooth finish.  Hung inch thick galvinised rio bar and 100 x 100 galvinised mesh for structural support. Exposed edges of bench had a bead of silicon smoothed to a curve with a finger to give a curved edge

Concrete mixed at 4 parts builders mix to 1 part cement, once laid the formwork was tapped with a heavy hammer for about 7 minutes to remove bubbles from the surface of the bench.

After 5 days of keeping the slab moist it was allowed to dry and lifted, very happy with the result, weight about 100kg.

Got a neighbour to help us lift it into place and after a bit of trimming with the massonite disk and grinder the sink slipped into place.



Silicone for the edges