Civil Engineering - Waste Water Engineering - Discussion

A type of joint used for cast-iron pipe having hub-and-spigot ends. After the spigot-end of one pipe is placed inside the hub-end of the other, a rope of oakum or hemp is packed into the annular space around the spigot end until the packing is about 1 inch (2.5 cm) below the top. Then molten lead is poured into the annular space on top of the rope. Finally, the lead is pounded farther into the joint with a caulking iron.

Lead caulked joints are used for laying Earthern ware pipes. Earthenware is fired at 1900 degrees Fahrenheit, much lower than stoneware.

Lead caulked joints are used for laying.

Lead caulked joint to CI pipe.

So, the correct answer is option C.

Earthen ware pipes is correct. Agree with the given answer.

C. I. Pipe.

Fill lead in socket & spigot in ci pipe.

Yes, CI pipes can be jointed by looking lead joints.

Lead can be used to joint cast iron pipes.