On a job I am working there is a number of garages that need to be built. The site has a clay soil with a medium-high volume change potential between 100-150mm and the ground bearing strength of the soil is 80-100KN/m^2. I was going to design a ground bearing slab 150mm thick with 150mm sub base. Because of the heave potential I was going to use either an A252 mesh 50mm cover from top of slab or place the A252 mesh centrally. But because of the heave potential I am not sure if I should use a block and beam floor instead what does everyone else think ?
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