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A23.4-09
©
Canadian Standards Association
November 2009
4 Categories, certification, design basis, and project samples
and reviews
4.1 Categories
In this Standard, precast concrete products are divided into one of the following three categories and each
category is divided into two subcategories:
(a) architectural:
(i) non-prestressed; and
(ii) prestressed;
(b) structural:
(i) non-prestressed; and
(ii) prestressed; and
(c) specialty:
(i) non-prestressed; and
(ii) prestressed.
Note:
See
Annex C
for a comprehensive listing of the capabilities manufacturers must possess to manufacture precast
concrete products for different applications.
4.2 Certification
Precast concrete elements produced and installed in accordance with this Standard shall be produced by
certified manufacturers, with certification demonstrating the capability of the manufacturer to fabricate
precast concrete elements to the requirements of this Standard.
Note:
Users may request that conformity assessment of precast concrete products or elements to this Standard be
performed by an organization accredited to do so. In Canada, the accrediting body is the Standards Council of Canada.
Purchasers of precast concrete products may accept certification from other organizations that are equivalent.
4.3 Design basis
4.3.1
The structural design of architectural and structural precast concrete shall be in accordance with
CAN/CSA-A23.3 or CAN/CSA-S6.
Note:
Users may contact the authority having jurisdiction for further information.
4.3.2
The design of specialty precast products shall be in accordance with other applicable Standards, as
specified by the owner.
4.3.3
Sandwich wall panels shall be designed as composite or non-composite.
Note:
See the
CPCI Design Manual
.
4.4 Project samples and reviews
4.4.1
The appearance of architectural precast concrete shall be determined by review of samples before
production. The finishes shall be defined by the samples and by specifications for performance
requirements such as durability, strength, and water absorption.
Note:
Samples for architectural precast concrete should be regarded only as providing a standard for performance within
the variation of materials and quality of work to be expected. If the colour or appearance of the cement or aggregates is likely
to vary significantly, samples showing the expected range of variations should be supplied for review by the owner. For
further information, see Commentary C1.5.4 of PCI MNL-117.
Licensed for/Autorisé à Jed Friesen Sold by/vendu par CSA on/le June/18/2015.
~Single user license only. Storage, distribution or use on network prohibited. Permis d'utilisateur simple seulement.
Le stockage, la distribution ou l'utilisation sur le réseau est interdit.