Draft Details

1.1 Inclusions

This Standard specifies requirements for precast segmental concrete paving units, manufactured from hydraulic and non-hydraulic cement concrete to be used in the construction of pedestrian and vehicular pavement and roof coverings. Segmental concrete paving units consist of either a single concrete throughout or two layers consisting of a backing concrete with a face that has a minimum thickness, commonly of 4 mm. This Standard includes units with architectural finishes or tactile surfaces.

Notes:

Annex A contains information on efflorescence and recommends methods for its removal.

The terms “paver”, “concrete paver”, “interlocking concrete paver”, “plank”, “slab”, and “concrete paving slab” are used exclusively in Clause 3 to facilitate industry classification of precast segmental concrete paving units.  To maintain clarity, these terms are not used in the subsequent sections of this Standard.

1.2 Terminology

In this Standard, “shall” is used to express a requirement, i.e., a provision that the user is obliged to satisfy in order to comply with the Standard; “should” is used to express a recommendation or that which is advised but not required; and “may” is used to express an option or that which is permissible within the limits of the Standard.

Notes accompanying clauses do not include requirements or alternative requirements; the purpose of a note accompanying a clause is to separate from the text explanatory or informative material.

Notes to tables and figures are considered part of the table or figure and may be written as requirements.

Annexes are designated normative (mandatory) or informative (non-mandatory) to define their application.