Three-quarter inch diameter pipe refers to the outside diameter. Different pipe types of the same outside diameter usually have different inside diameters. ASTM SCH 40 pipe of 3/4 inch diameter has an inside diameter of 0.824 inches. ASTM CL 200 pipe of 3/4 inch diameter has an inside diameter of 0.930 inches because of the thinner wall.
8 "
The minimum diameter of stirrups in reinforced concrete design typically depends on the specifications outlined in relevant building codes and standards, such as ACI, Eurocode, or local regulations. Generally, the minimum diameter is often set at 6 mm (1/4 inch) for normal conditions, but this can vary based on factors like concrete strength, exposure conditions, and the size of the main reinforcement. Always consult the applicable codes for precise requirements for your specific project.
Approx 10.3 US gallons.
The inside diameter (ID) is 8 inches. The nominal pipe size (NPS) and outside diameter (OD) depend on the thickness of the walls of the pipe.
30-inch (inside diameter) RCP has a wall thickness of 2.75 inches. Therefore, the outside diameter of 30-inch RCP is 35.5 inches.
1/12th inside diameter plus 1 inch for 'B' wall (most common type), additionally, pipe sizes are normally in 1/4 or 1/2 foot increments, so the closest size would be a 24 inch diameter with 3 inch wall (24/12=2+1=3) having a outside barrel diameter thickness of 30 inches for 'A' wall 1/12th inside diameter, 'C' wall is 1/12th inside diameter plus 1 3/4 inch
It could be 65" (b wall - 5.5" wall thickness), or 66.5" (c wall - 6.25" wall thickness).
2 1/2"
Less than an inch.
Three-quarter inch diameter pipe refers to the outside diameter. Different pipe types of the same outside diameter usually have different inside diameters. ASTM SCH 40 pipe of 3/4 inch diameter has an inside diameter of 0.824 inches. ASTM CL 200 pipe of 3/4 inch diameter has an inside diameter of 0.930 inches because of the thinner wall.
Assuming that the 14 inch box is square, you could fit a circle inside with a 14 inch diameter.
This all depends on the class of Reinforced Concrete Pipe (RCP) it is. Typically the manufactorers of RCP recommend one foot of compacted fill over a pipe for construction traffic. As long as the material is not wet I would drive over it any day.
8 "
you are going to want at least a 6 inch base of packed stone, then at least six inches of concrete reinforced with either rebar or highway rated mesh.
The inside diameter of the inner bull is 1/2 inch. The inside diameter of the outer bull is 1 1/4 inches.
The answer depends on what the "36 inch" measures: inside circumference, radius, diameter?