Last edited 12 Oct 2020



Ferro-cement is a composite material made up of mortar and light wire steel mesh. It is a highly versatile form of reinforced concrete.

The mesh is formed into the shape of the structure in thin sections, and should mesh uniformly throughout the cross-section. Rebar is sometimes used as a means of stiffening the structure. On both sides of the reinforcement layer the stiff mortar is applied to the required thickness. Care must be taken to completely cover with metal with mortar, or else the metal may be at risk of corrosion.

The strength of the ferro-cement is determined by the quality of the sand/cement mortar mix and the quantity of the reinforcing materials used.

Ferro-cement is typically used to relatively thin but strong surfaces and structures, such as for shell roofs, water tanks, and so on.

Due to the increased amount of labour required for the construction process, ferro-cement structures tend to be found in countries with low labour costs, such as in Asia and the Pacific regions.

The advantages of ferro-cement are as follows:

The disadvantages of ferro-cement are as follows:

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