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Various Benefits of Precast Concrete Construction ?
Precast concrete is a concrete construction product that is made using molds under controlled process conditions. They are later on shipped to the construction sites for use. This technique first evolved in 1904, helps in the creation of concrete products that are much better in uniformity and quality as compared to the usual concreted that is poured and cured on the construction site. Prefabricated concrete is made in the plants that maintain controlled conditions resulting in a much better strength and quality than concrete construction. As these products are produced in the precast molds, the concrete gets a chance to cure to the desired specifications. There are numerous advantages of using these precast concrete products in various constructions. As compared to the concrete construction, these precast concrete blocks have greater fire resistance, strength, resistance to chemicals, lower maintenance costs, easy and quick installation and aesthetics. The plants processing precast concrete products have a specialization in this process and can offer them in various sizes, shapes, finish or colors that are not possible in the usual concrete construction projects. The cost of construction also reduces significantly as molds can be easily reused again and again. Aside from this, precast concrete products are made for connecting with one another to make a structure, so they save lot of expenses on labor as well. They also save lot of construction time as they are just lifted and installed in place in a mechanized way. Precast concrete products are being used worldwide for various construction projects. Many high risers, houses, warehouses, building walls, pump stations, containers for storing waste, transportation structures like platform risers and terminal buildings are made using precast concrete. Many houses are now being made using precast concrete walls because they are more durable and entail low labor cost. The walls made using prefabricated concrete can last much longer than simple concrete construction due to their high resistance to elements. The walls that are made using prefabricated concrete can either be single layered or double layered according to the design requirements. The double layered walls are sometimes called sandwich walls because they have a wide layer of insulation in between the two concrete layers. As these walls are made to the exact specifications, they can be produced with the exact access openings for doors, windows or pipes.
Is a tent a shell structure?
Probably not. A shell structure is mostly considered one that can stand and resist forces of nature using its own intrinsic structure. A tent relies on poles or ropes or both to hold it up and as such, tents are defined as tensile or membrane structures. Please see the related link.
What is difference between pre tension and post tension precast girders of bridge?
A simple explanation: PRE tensioned- cables are tensioned, and the concrete is cast around it. The tensioning is done BEFORE casting the concrete (PRE = before). POST tensioned- cables are placed inside of ducts or are greased to prevent bonding to the concrete, the concrete is cast around the cables, and then the cables are tensioned after the concrete has reached a desired strength. The tensioning is done AFTER the concrete is cast (POST = after).
What is the maximum and minimum curing time of concrete?
minimum curing period of concrete is 21 days and maximum is 28 days
What is the average curing time for hollow concrete block?
21 days
How do you use the word precast in a sentence?
the consist of precast slabs fixed on concrete posts
Can precast concrete be cut to fit?
yes
How is precast concrete produced?
unlike standard concrete which is in a liquid form and poured were it is needed and formed, precast concrete is molded offsite into the form that is required and then shipped to the site where it will be set into place.
What has the author Martin J Gutzwiller written?
Martin J. Gutzwiller has written: 'Use of precast, prestressed concrete for bridge decks' -- subject(s): Bridges, Floors, Precast concrete, Prestressed concrete, Testing
What are Advantage and disadvantage of In-situ concrete slab?
disadvantage: - require more time to construct compare to precast concrete slab -more on-site labor required - require formwork advantage: -most commonly use -do not require storage for material (e.g. precast concrete slab need place to store)
What has the author A H Gustaferro written?
A. H. Gustaferro has written: 'Design for fire resistance of precast prestressed concrete' -- subject(s): Fire testing, Precast concrete, Prestressed concrete 'Fire resistance of prestressed concrete beams' -- subject(s): Concrete beams, Fire testing, Testing
Who was the Architect known for using precast concrete?
Frank Lloyd Wright
Why the precast girders are used instead of reinforced cement concrete girders?
becos precast girders are not cast in -site and therefore faster. they also available in standard size.
What is the Difference between precast and prefabricated concrete?
Prefabricated is a general term for anything that is assembled in a factory rather than on-site. Precast would be specifically applicable to anything that could be formed in a mold (concrete, perhaps glass, metal, etc.).
What can you do with concrete?
With concrete and precast concrete you can build fences, walls, concrete sound walls, pre-cast concrete perimeter walls, masonry walls, masonry screen walls and more! If you are interested in having a concrete or precast fence, perimeter, sound wall, masonry wall or masonry screen wall, then go to the links below for more information. Well you can make walls, houses, bricks and so on.
What has the author T Koncz written?
T. Koncz has written: 'Manual of precast concrete construction'
What is precast concrete?
precast concrete manufactring the members of construction out site - using concret material-
