For installing a precast concrete plant heavy and sophisticated machines are necessary which requires a high initial investment a large scale of precast construction projects must be available to ensure sufficient profit.
Hollow core precast concrete floor panels disadvantages.
Hollowcore planks can be attached to cmu walls steel beams or precast walls beams.
When precast structures are to be installed it is evident that the amount of scaffolding and formwork is considerably reduced.
A hollow core slab also known as a voided slab hollow core plank or simply a concrete plank is a precast slab of prestressed concrete typically used in the construction of floors in multi story apartment buildings the slab has been especially popular in countries where the emphasis of home construction has been on precast concrete including northern europe and former socialist countries of.
Precast concrete floor slab is the most fully standardized precast concrete elements.
Our nicore hollow core concrete is a precision manufactured precast prestressed concrete plank produced with high strength 5 000 psi minimum concrete.
As the heroes of flooring roofing bridges and mezzanine systems there are 7 main advantages of precast hollowcore slabs.
Disadvantages of precast concrete.
They are used for making floor and roof slabs.
Large span length with tubular hollowed out voids spanning the slabs full length these concrete slabs present a dramatic decrease in weight without sacrificing strength and durability.
Rapid construction on site high quality because of the controlled conditions in the factory prestressing is easily done which can reduce the size and number of the structural members.
There are some disadvantages to precast concrete they are discussed below.
Prestressed hollowcore floors provide the most economical flooring solution for the widest variety of situations in masonry steel and concrete structures.
You get an affordable reliable and versatile hollow core plank also known as dox plank that offers a host of advantages over other traditional building materials.
Maximize space in any house plan for approximately 20 per square foot with hollowcore roof and floor systems from county materials.
Precast concrete disadvantages of precast concrete.
Precast floors and in particular hollowcore floors offer many advantages over alternative flooring construction methods such as in situ metal deck and timber.
The principle advantages of precast floors are speed of construction absence of scaffolding large variety of types large span capacity economy.
Hollowcore systems are prestressed concrete plank that serve as both a ready made sub floor for a garage and a ceiling for additional living areas.
If not properly handled the precast units may be damaged during transport.
In addition the panels have continuous voids in them that reduce weight and cost and also may be utilized for electrical or mechanical runs.
Following are the disadvantages of precast concrete.
