The area shown in these steps is a small section of concrete adjoining a crossover

First determine the area of concrete you want to extend and mark for excavation. For concrete crossover extension  you  must prepare for min 150 mm thickness.
Now that the excavation is completed the next step is to drill holes in the existing concrete to hold the new concrete tight into the old concrete. The holes should be
drilled at a min of M12 to M16 diameter holes because this area is taking the wait of a car it needs to be stronger than normal concrete.

Now the holes a drilled the reio bar (reinforcement bar), a 16 mm Dow at a approximately 250 mm long. Fit the Dow into the drilled holes in your concrete and hit them firmly into position

Next get your mesh that you have it should be a size of F72 (that means a 7 mm bar at 200 mm square sections ) cut to the size needed with you bolt cutters

Lay the mesh in to position and tie the mesh to the Dow bars in the concrete with a recommended wire that you can get from your hardware store
Tie in a few places to keep it tight

Now let's put the boxing in to place to separate the new concreted area to the non concreted area as shown in pic 6 cut the timber to length between the curb and Chanel and the concrete path and fix with star pickets as seen below.

Let's work out how much concrete we need for the concreted area

First measure the length of the concreted area and the width and then multiply the 2 measurements together and the figure then needs to be multiplyed by the thickness of the concreted area as discussed earlier witch is 150 mm

This will give you the concrete volume needed .The concrete should be 25 mpa 80 slump

Tools required to complete this concrete project are;
a shovel,
a screed to help level the concrete mass
a mag trowel is to help push a level the surfaces
a 75 mm edger to form the perimeter of your concrete and leave a nice round edge
a Fuker joint trowel witch centers the expansion joint so if your concrete cracks, it will follow this line,
last but not least a pair of gumboots to protect from the chemicals in the concrete.

Let's finish the concrete with a broom finish nice and simple.