What is ferrocement roof?
What is ferrocement roof?
Ferrocement is one of the most suitable construction materials for roofing systems is Precast or cast in situ form. It offers high strength, resistance against ingress/seepage of water, high crack resistance and can offer solution with reduced weight & cost. Casting with or without mould is possible.
What is ferro cement concrete?
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.
How is a concrete roof constructed?
A concrete roof is exactly what it sounds like: a solid slab of concrete capping the top of your house. Then a concrete mixture is poured, spread through the framework and reinforced with steel bars, which serve as a kind of skeleton for the cured concrete.
How thick should a concrete roof be?
The flat concrete roof itself can be up to 7 inches thick although the greater the thickness, the more the concrete will need be poured in increasing numbers of layers, with each one needing to dry before the next is poured. The roof needs to be thick in order to provide insulation and proper protection.
What is filler slab?
Filler slab is alternate slab construction technology where part of concrete in bottom of slab is replaced by filler material. So this portion concrete is replaced by low cost, light weight filler material like mangalore tile, clay pots etc.
What are ferrocement channels?
Ferrocement channels are prefabricated and cured for a period of 2-3 weeks, after which they are ready for roof construction. Roofing is constructed with these channels by installing them in series directly on end beams or wall supports without the use of any intermediate beam.
What are the advantages of Ferro cement?
Ferro concrete has relatively good strength and resistance to impact. When used in house construction in developing countries, it can provide better resistance to fire, earthquake, and corrosion than traditional materials, such as wood, adobe and stone masonry.
Which is not advantage of ferro cement structure?
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 labors required.
Why have a concrete roof?
Extremely Durable – A concrete tile roof can last more than 50 years, especially when installed in the right climate. These roofs can withstand hail, high winds, rot, insect damage and even fire. Once you install a concrete tile roofing system, you will never have to install another type of roofing again.
How long can a concrete roof span?
Spans normally range from 15 to 50 feet, but may be extended by post- t e n s i o n i n g . Joists may have openings in the ribs to accommodate mechanical s y s t e m s. Slabs between the joists can readily accommodate duct openings or sleeve s.
What can ferro cement be used for in a building?
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 .
Can a ferro cement wall be anchored to concrete?
As far as concrete is concerned, ferro-cement is one of the most versatile methods available. Your ferrocement project wants to be anchored to metal that you can cover in concrete. If making a wall, make sure that your foundation has some rebars sticking up out of it every couple of feet that you can tie the wall’s frame to.
How is the strength of ferro cement determined?
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.
What are the disadvantages of ferro concrete construction?
The disadvantage of ferro concrete construction is the labor-intensive nature of it, which makes it expensive for industrial application in the western world.
