I hadn't heard of these before but they are recommended by various sites.
One example, from
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"The versatile Mesh-Up is available in three sizes:
* 2-inch Mesh-Up (Recommended for 3 to 5-inch concrete slabs) * 3-inch Mesh-Up (Recommended for 4 to 6-inch concrete slabs) * 4-inch Mesh-Up (Recommended for 6 to 8-inch concrete slabs) "
One thing that strikes me is that they seem to recommend the mesh being from
1" (25mm) below the surface. There were a couple of postings sugggesting that the mesh should be at least
50mm from top or bottom.
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gives multiple options in multiple materials - wire, concrete and plastic. Does anyone have a recommendation, or are they all much of a muchness?
TIA
Dave R