What can be done to repair or resurface a concrete patio slab?

Ljm22036236
by Ljm22036236

Large kidney shaped patio slab has multiple cracks, gets worse each year due to freeze/thaw cycles here. Can it be resurfaced or covered, or is a complete replacement required? Looks to be 3" thick, but not sure if it was poured with mesh or bar in it. I estimate it is about 20+years old. It also had some surface flaking/deterioration from rain/snow/sun. Needs repair/face lift. Don't really want to spend thousands to replace w/new. Live in rural remote area of Mt so contractors are expensive.