Alternatively the slab soffit can be formed with special moulds to give an indented profile to produce a waffle or trough floor.
In situ concrete ground floor.
Ribbed floors have greater span and load potential per unit weight than flat slab construction.
Suspended ground floors where the slab is supported on beams and or loadbearing sleeper walls and is not in direct contact with the ground.
A new method of using large diameter cast in situ concrete pipe piles for the construction of highway and high speed railway embankment over soft clay is introduced in this chapter this so called pcc pile method offers a relative speedy and cost effective way for soil improvement as compared with other existing soil.
A concrete slab is a common structural element of modern buildings consisting of a flat horizontal surface made of cast concrete.
Types of concrete floor in situ concrete solid floors.
In situ concrete slab.
A requirement for greater slip resistance is often a driver to explore other options such as the inclusion of retardants or shot blasting.
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The floor slab may crack due to large settlement.
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An option is to use either concrete beam and block floor or a suspended timber.
However it is also possible to construct a ground bearing floor which is designed to span over the poor.
Various types of in situ concrete floor systems there are many concrete floor systems from which the designer can select an economical and technically satisfactory solution.
Concrete poured in situ forms the foundations floors walls and ceilings of the ground storey kitchen and a new bathroom on the first floor.
Troughed floors are ribbed in only one direction whereas coffered or waffle floors are ribbed in two directions.
This is a ribbed cast in situ floor with permanent formwork in the form of hollow clay or concrete pots.
In situ concrete floors.
Such floors can be designed and constructed to have a continuously flat soffit.
Suspended upper floors where the slab is supported by beams steel or concrete and or columns or on loadbearing walls.
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Steel reinforced slabs typically between 100 and 500 mm thick are most often used to construct floors and ceilings while thinner mud slabs may be used for exterior paving see below in many domestic and industrial buildings a thick concrete slab supported on.
When the ground conditions are poor a normal ground bearing slab is unsuitable.