2nd Floor Concrete Slab Thickness

The bulk of the floor s thickness comes from the joists which are the horizontal beams that carry the floor s weight.

2nd floor concrete slab thickness. A 2 by 10 joist is really only 9 1 4 inches wide and a 2 by 12 is only 11 1 4 inches wide so depending upon. A concrete slab is a common structural element of modern buildings consisting of a flat horizontal surface made of cast concrete. The specification for the floor of a maintenance building called for a 6 inch slab thickness and concrete with a design compressive strength of 3000 psi. Common mistakes in concrete floor slab construction can be avoided with proper base preparation mix design placement finishing and curing.

The floor joists comprise the bulk of the floor thickness. 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. The actual average cylinder strength for the floor concrete was 3630 psi. Type of lightweight floor system is constructed by pouring lightweight aggregate concrete into the fixed forms of the concrete slab.

Quality floor construction includes good subgrade compaction even thickness slabs low slump concrete straight bulkhead lines and control cuts spaced 24 to 30 times the slab thickness. It is used in the construction of multistory buildings. If you plan on having a large area of concrete floors on the second story it is likely that they will need to be reinforced in order to support the additional weight. Joists in home construction are usually made with 2 by 10 or 2 by 12 lumber.

Standard floor joists are usually 2 by 10 or 2 by 12 dimensional boards installed on edge. Four months after the floor was placed 10 cores were drilled measured and tested in compression. The minimum thickness of lightweight concrete floor system can be computed based on the specifications of american concrete institute aci 318 14. The actual width of those boards however isn t identical to what their name implies.