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.12 Catchbasin lids: to be designed to withstand H20 loading.
.16 AdjusƟng rings manufactured to:
.1 Concrete to ASTM C478M
.22 Prebenched manhole bases:
.1 Where precast manhole secƟons are incorporated into precast base by
bonding to concrete benching, use precast reinforced concrete manhole secƟons
to ASTM C478M complete with ladder rungs above benching.
.2 Where base benching is cast monolithically with manhole walls, reinforce wall
and joint secƟons as specified in ASTM C478M
MMCD PlaƟnum SecƟon 33 44 01 1.0.1 states requirement to
"…reference …and interpret
…simultaneously with all other secƟons perƟnent to the works described herein.
" This requires
simultaneous reference and interpretaƟon of design standard ASTM C478M (plus ASTM C913),
quality standard CSA 23.4-09, SCC 3
rd
party verificaƟon, and Diamond Precast Concrete’s
internal design and quality documentaƟon.
Diamond Precast Concrete’s Manhole and Catchbasin products are designed in accordance with
ASTM C478M as required by MMCD PlaƟnum 33 44 01. (ASTM C913 was followed for Oil-Water
Separators)
MMCD PlaƟnum SecƟon 33 44 01 1.4.1 requires: "
Product to be cerƟfied to CSA standard(s) by
an approved independent third party cerƟficaƟon body accredited by the Standards Council of
Canada.
" Diamond Precast Concrete is cerƟfied to CSA Standard 23.4-09. CSA provides third
party cerƟficaƟon to Diamond Precast Concrete. CSA’s scope of Standards Council of Canada
accreditaƟon includes the Structural Safety and Performance of Concrete and Concrete
Products (ICS No. 91.100.30).
In some applicaƟons concrete structures are at risk of corrosion, scouring, infiltraƟon or
exfiltraƟon. In such applicaƟons Diamond Precast Concrete integrates Concrete ProtecƟve
Liners into its concrete products as protecƟon to the at risk concrete. Concrete ProtecƟve
Liners are non-structural elements. They do not add or take away from the structural integrity
of the underlying precast concrete product. Diamond Precast Concrete products with Concrete
ProtecƟve Liners comply with MMCD PlaƟnum 33 44 01 so long as they conform to all 33 44
01’s requirements.
Upon comprehensive review, Diamond Precast Concrete Manholes and Catchbasins meet all
requirements of MMCD PlaƟnum SecƟon 33 44 01.
Sincerely,
Vincent Wang, P.Eng.(Structural)
APOC Engineering Ltd.