A concrete form is just a box that holds wet concrete in shape until it sets. They are normally wood but I've seen metal forms a lot too. It has to be removable when the concrete hardens, usually by taking it apart. First, find your grade, that's the level you want the concrete to be at when it's finished. Drive some stakes around the area and suspend strings where the edges will be. Drive larger stakes along the strings. Fasten the boards to the stakes with the top edge on grade. Make sure to support it a lot along the board with additional stakes because concrete is very heavy. Add or remove fill in the form until you have the depth you want. Your ready to pour.
To build a single concrete step, you will need to prepare the area, create a form for the step, mix and pour the concrete, level and smooth the surface, and allow it to cure before removing the form.
Stone and an early form of concrete
To add a concrete step to an existing slab, you will need to prepare the surface by cleaning it thoroughly and applying a bonding agent. Then, build a form for the step, pour concrete into the form, and level it. Allow the concrete to cure properly before removing the form and finishing the step as desired.
They used concrete.
Use concrete to build a nice archway.
The volume of concrete used to build the Millau bridge is 85,000 m3 (cubic meters). The weight of this volume of concrete is 206,000 metric tons.
concrete
No one knows the exact amount of concrete used to build I-90. However, it did cost 1 billion dollars to build.
Want to replace an existing subsided external concrete step.
To learn how to build a concrete ramp, you can start by researching online tutorials or taking a class on concrete construction. It's important to understand the necessary materials, tools, and techniques involved in the process. Practice and hands-on experience will also help you gain the skills needed to successfully build a concrete ramp.
No, the Greeks were using bricks to build. It was the Romans that later on discovered the concrete.
Use materials other than concrete.