Sewer Materials and Design

Front

What are asbestos cement sewers made from?

Back

Asbestos fibers, silica, and cement.

Front

What are the typical sizes of asbestos cement sewers?

Back

Sizes range from 10 to 100 cm in diameter and up to 4 meters in length.

Front

What are the advantages of asbestos cement sewers?

Back

Lightweight and easy to transport, easy to cut and assemble, smooth interior (Manning’s n = 0.011).

Front

What are the disadvantages of asbestos cement sewers?

Back

Structurally not very strong and susceptible to corrosion by sulphuric acid.

Front

What types of concrete pipes are available?

Back

Plain cement concrete pipes (up to 0.45 m diameter) and reinforced cement pipes (up to 1.8 m diameter).

Front

What is the advantage of reinforced cement pipes?

Back

They can withstand higher pressures and are stronger than plain cement pipes.

Front

What are the advantages of concrete pipes?

Back

Strong in tension and compression, resistant to erosion, and economical for medium to large sizes.

Front

What is a key feature of vitrified clay sewers?

Back

They are resistant to corrosion and have a smooth interior surface.

Front

What is the typical diameter range for vitrified clay pipes?

Back

5 cm to 30 cm.

Front

What are the characteristics of cast iron pipes?

Back

Strong, can withstand tensile, compressive, and bending stresses, and form a 100% leak-proof sewer line.