Pca Concrete Floors On Grade

Sum fatigue and erosion damage factors over all of the.

Pca concrete floors on grade. Because concrete floor slabs are rigid concentrated loads from forklift wheels or rack posts are spread over a larger area of sub grade which results in lower pressures than the slab surface is exposed to. Re i n f o rc e m e n t is optional and is intended for s h r inkage and tempera t u r e effects. Pca 100 2012 prescriptive design of exterior concrete walls for one and two family dwellings eb562 this publication provides a simplified approach to the design of concrete footings foundation walls and above grade walls both load bearing and non load bearing intended primarily for use in detached one and two family dwellings. D divide n i by n i to determine erosion damage factor d i.

It was concluded that designing plain concrete slabs without reinforcement on grade according to pca and the wri methods leads to slab fatigue even though extreme fibre stress should not exceed. P c a s charts and ta bles allow slab thickness selection for dual and single wheel axle l o a d s rack support post loading and uniform loads with fixed or va r iable positions. Move to right to post spacing y 4. In addition to an updated thickness design procedure the text includes a discussion of concrete drying shrinkage joint stability floor flatness and levelness moisture testing and floor coverings concrete durability floor maintenance and repair special floor types including white concrete floors and a glossary of slab on ground terms.

Packard portland cement association 1976 concrete floor slabs on grade subjected to heavy loads army technical manual tm 5 809 12 air force manual afm 88 3 chapter 15 1987. However strong support from. Move to right to eff. Enter chart with slab stress 2.

1 2 4 aci committee 325 addresses the structural design construction maintenance and rehabilitation of concrete pavements. 8 4 finishing class 1 2 and 3 floors 8 5 finishing class 4 and 5 floors 8 6 finishing class 6 floors and monolithic surface treatments for wear resistance 8 7 finishing class 7 floors 8 8 finishing class 8 floors two course unbonded 8 9 finishing class 9 floors 8 10 toppings for precast floors 8 11 finishing lightweight concrete. B divide n i by n i to determine fatigue damage factor d i. The use of shrinkage compensating concrete.

1 2 5 aci committee 332 develops information on the use of concrete for one and two family dwellings and multiple single family dwellings not more than three. Design of slabs on ground aci 360r 06 by american concrete institute slab thickness design for industrial concrete floors on grade is195 01d by robert g. Per pca slab thickness design for industrial concrete floors on grade figure 7b page 10 instructions for use of figure 7b. C determine n i for erosion failure.

Therefore concrete floors do not necessarily require strong support from the sub grade. Choose a trial slab thickness h. Contact area 3.