Suspended Concrete Floor Slab Thickness

When renovating rooms with timber floors it is often possible to replace the timber with a concrete slab for added thermal mass and quietness underfoot.

Suspended concrete floor slab thickness.

The normal thickness used for reinforced concrete slabs in south africa is 170 mm for small slabs 255 mm for slabs larger than 5m x 5m and 340 mm thick for long span slabs forming part of a beam and carrying heavier loads. No body would pour a 8 slab for a basement. If the suspended slab is expected to conform to aci 117 10 specification for tolerances for concrete construction and materials there are only a few relevant tolerances. Concrete slab on ground floor systems and suspended floors suitable for residential buildings ranging from single detached houses to medium density buildings of apartments and flats.

Section 4 4 1 indicates that deviation from the specified elevation is 3 4 inch but that s only applicable on formed suspended slabs before the removal of shores. Renovations can often incorporate concrete slabs even when the original building does not. A concrete slab is a common structural element of modern buildings consisting of a flat horizontal surface made of cast concrete. Garage floor slab construction process includes the preparation of base erection of formwork placement of reinforcement pouring compaction finishing and curing of the concrete slab.

As you can see the main portion of the slab is 100 mm or 4 and the footings are 200 mm or 8 you d be throwing money away pouring such a slab as you posted. In this article we discuss the construction process thickness and cost of garage floor slab. 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. According to south african estimators the square meter pricing for a suspended first.

The suspended reinforced concrete slab is tied into the external capping beam at floor level. The slab is constructed on well compacted granular fill crushed stone or marl. This picture shows a typical raft slab which would be used for a basement or garage floor. The mesh reinforcement in the slab is placed in the top with 1 covers.

Contents construction of garage floor slab1. Alternative floor slab detail.