Hammer out any large cracks to expose a V-shaped channel using a hammer and rock chisel. Remove any large chunks of cement.
Clean the area with a broom and mop to remove any dirt or debris. Leave the surface of the concrete damp but without standing water.
Spread concrete paste over the surface of the concrete with a paint brush or broom.
Mix the concrete resurfacing material to a consistency slightly thinner than peanut butter.
Spread the material over the surface of the existing concrete pad to a thickness of 1/2 to 1 inch. Level the surface of the concrete out with a float. Smooth the top of the concrete after the surface water has evaporated and left the concrete with a dull gray appearance. Create a smooth finish with a trowel or drag a broom across the surface for a skid-resistant finish.