ICPI Releases Tech Spec 24 on Structural Design of Slabs and Planks

ICPI Tech Spec 24 entitled “Structural Design of Segmental Concrete Paving Slab and Plank Pavement Systems” provides a limited amount of vehicular traffic on a range of slab and plank dimensions.

Base options are compacted aggregate or concrete over an aggregate subbase. Designs specifically address weak soil subgrades and lifetime traffic loads up to 30,000 equivalent singe axle loads. Unlike interlocking concrete pavement, slabs and planks offer little if any interlock to spread loads. Therefore, traffic is limited to occasional use by cars and light trucks. Developed from modeling and full-scale load tests, the design method provides tables from which designers can select paving unit dimensions and soil strength to determine the appropriate traffic level. The easy-to-use bulletin aimed at landscape architects and civil engineers is available for download here.