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GUIDED BY :-
PRESENTED BY :-
PREETHA PRABHAKARAN
AKHIL SAJU
INTRODUCTION
1. Ferro-cemnt is a relatively new material consist of wire meshes and cement mortar.
2. Developed by P.L.Nervi,an Italian architect in 1940.
3. Widely used due to the low self weight,lack of skilled workers,no need of framework etc….
4. Quality of ferrocement works are assured because the components are manufactured on machinery set up and execution time at work site is less.
5. Maintenance cost is low.
6. Ferro-cement construction has come into widespread use only in the last two decades.
What is Ferro-cement?
• Highly versatile form of reinforced concrete.• Its a type of thin reinforced concret
construction,in which large amount of small dia wire meshes uniformly through out the cross section.
• Mesh may be metal or suitable material.• Instead of concrete portland cement mortar is
used.• Strength depends on two factors quaility of
sand/cement mortar mix and quantity of reinforcing materials used.
Typical cross section of ferro-cement structure.
Constituent Materials
1. Cement2. Fine Aggregate3. Water4. Admixture5. Mortar Mix6. Reinforcingmesh7. Skeletal Steel8. Coating
REINFORCING MESH
Advantages• Basic raw materials are readily
available in most countries.• Fabricated into any desired shape.• Low labour skill required.• Ease of construction,low weight
and long lifetime.• Low construction material cost.• Better resistance against
earthquake.
Disadvantages• Structures made of it can be punctured by
collision with pointed objects.• Corrosion of the reinforcing materials due to the
incomplete coverage of metal by mortar.• It is difficult to fasten to ferrocement with
bolts,screws,welding and nail etc…..• Large no of labours required.• Cost of semi-skilled and unskilled labours is
high.• Tying rods and mesh together is especially
tedious and time consuming.
Ferro-cement Construction
•Fabricating the skeletal framing system.
•Applying rods and meshes.•Plastering.•Curing
Applications• Housing.
• Marine.
• Agricultural.
• Rural Energy.
• Anticorrosive Membrane Treatment.
• Miscellaneous.
Housing Applications
Marine Application
Aggricultural
Rural Energy
Cost Effectiveness Of Ferro-cement Structures
• The type of ecnomic system.
• Type of applications.
• Relative cost of labour.
• Capital and local tradition of construction procedure.
• Doesn’t need heavy plant or machinery.
• Low cost of construction materials.
Recent Applications
• Residential And Public Buildings.
• Industrial Structures.
• Agricultural structures.
• Transportation Structures.
Residential And Public Buildings
Industrial Structures
Agricultural Structures
Transportation Structures
CONCLUSION• Ferro-cement come into wide spead use only in the last
two decades and still in its infancy.Sufficient design information is available and adequate field experience has been acquired to enable safe design and construction of many types of ferro-cement structures.
• Whether it can economically compete with alternate materials depends on the type and location of application.
• For industrially developed countries,ferro-cement seems economical for medium storage tank.roof shells,boat,tank and the ease of forming complicated shapes and lighter weight of ferro-cement can be safely exploited.
REFERENCES1. Jouranl of Ferrocement ISSN 0125-1759 CODEN
JOFEDZ.
2. Book Review Of Ferro-cement and Laminated Cementatious by Batson.G (2000).
3. Economical Construction Techniques for Walls by P.K Adlakha.
4. Ferro-cement Application In The Developing Countries by M.Nervi.
5. www,forintek.ca/acessed 12th Feb2007.
6. www,Architectureforhumsnity.com/acessed 10th Feb2007.
THANK YOU