Yes they are designed that way. If you like you can pour without using chair but you have to make absolutely sure that the reo lays at the correct level in the concrete.
The amount of rebar depends on the thickness of what you are making. All three dimensions.
Concrete it self may not but most concrete structures .Has rebar in them and that can .
Depends on stress and loading. adding it is a safe bet
As much as the engineered load calls for to perform the task the cement is required to perform.
To lay rebar for concrete effectively, follow these steps: Determine the required rebar size and spacing based on the project specifications. Place the rebar in the correct position within the formwork, ensuring it is properly supported and secured. Use tie wire to connect and secure the rebar at intersections and corners. Use chairs or supports to lift the rebar off the ground to the desired height. Double-check the placement and alignment of the rebar before pouring the concrete. By following these steps, you can effectively lay rebar for concrete to ensure a strong and durable structure.
Rebar locators are used to find exactly where the reinforcing steel is located under concrete in existing materials. They are most often used for renovation or remodeling projects.
IF I WAS YOU I WOULD DO A PRESSURE TEST TO BE 100% SURE.
After filling a cinder block with cement and metal rebar, you need to ensure that all voids are filled and the mixture is properly consolidated to ensure structural integrity. Adding fiberglass fibers can help improve crack resistance and overall strength of the wall. Allow the cement to cure properly before applying any additional loads or finishing touches.
Rebar Detailing is a procedure of making shop drawings for the steel reinforcement for the development procedure. The Rebar Detailing procedure incorporates the position, bending shapes, amount, description, laps of the reinforcing steel and measurements. The Rebar Detailing Drawings are made to incorporate the separating, area, rebar size and lap of steel. The Rebar Detailing Services includes: Rebar Detailing Services, Rebar Shop Drawings Services, Rebar fabrication Services, Rebar Framing Plan Design, Rebar Structure Foundation, Rebar Pit Design, Rebar Framing Plan, Rebar Beam Design, Rebar Structure Steel Detailing, Structure Foundation Rebar Detailing.
As a guideline, 4 inches thick, but it would depend on what is going to be sitting on top of it. You may need thicker and/or to reinforce it with rebar.
RCC is able to withstand heavy loads - compression from the concrete, tension from the rebar - , it is relatively cheap and easy to fashion into custom shapes even on site.
The unit of measurement for rebar thickness, such as 14mm, is in millimeters (mm). This measurement refers to the diameter of the rebar.