Steel mesh = will enable the concrete to span across any soft spots in the ground below and provides some cracking control.
Short plastic/metal fibres = will not provide any structural capacity for soft spots. Provides excellent crack control and lessens the effect of cracks that do appear.
In short, mesh makes concrete stronger; fibres make concrete tougher.
If you have an excellent sub-base you can forgo the mesh and use some fibres, but for most agriculture applications where you haven't got access to CBR testing and heavy duty rollers, I'd stick with mesh and accept a few hairlines cracks will appear with time.
Five nature-recovery projects spanning nearly 100,000ha across the West Midlands, Cambridgeshire, the Peak District, Norfolk and Somerset have been announced by the government and Natural England today (Thursday, May 26).
This is the equivalent in size to all 219 current National Reserves.
The aim of the projects is to deliver nature recovery at a landscape scale, helping to tackle biodiversity loss, climate change and improve public health and well-being.
All five projects will make a significant contribution towards the national delivery of the international commitment to protect at least 30% of land and...