PAV-FDN-026-24

Development of Pedestal-Set Slab Load Criteria

Recipient: Concrete Masonry & Hardscapes Association
Grant: $61,180
Completion: 2023
Project Summary: 26

Background and Need
In 2020, The CMHA Lab was retained by the ICPI Foundation for Education & Research to develop testing protocol and performance criteria for pedestal-set concrete paving slabs and to investigate alternative support and loading conditions to simulate those seen in the field. Pedestal-set concrete paving slabs have become a popular decking system for pedestrian plaza and rooftop applications as facility owners look to expand usable space and create functional outdoor places. While testing protocols currently exist in ASTM C140/C140M, Standard Test Methods for Sampling and Testing Concrete Masonry Units and Related Units for evaluating the flexural strength of concrete paving slabs, these established protocols test slabs under conditions that do not replicate the in-situ loading and support conditions of pedestal-set slabs.