cheapest way of repairing this path

[loltolhurst]

Hi,

diy amateur here.

I want to repair this path where the concrete top has come off. Can I just bung a thin layer back on or will it come off again in a month? It doesnt need to last forever but 2 years would be good. if its just concrete can i just buy some ready mixed stuff - should i add any pva? any other tips?

Thanks

[loltolhurst]

cheers for the advice so far