Precast Concrete Specialists

Company Profile

C
oncrete Units (Pty) Ltd was founded in In fact, Concrete Units set the industry
Cape Town in 1984 and subsequently standard by being the first of the pipe and
has established a further manufacturing culvert manufacturers to be awarded the
facility in Meyerton, Gauteng. ISO 9002 certificate. As required either by
the SABS or specific client requirements,
The company specialises in the design and products are put through vigorous
manufacture of both standard products performance tests by the very strict quality
such as SANS pipes and culverts, through to control division before being loaded for
non standard products such as exposed delivery to site.
aggregate architectural cladding units,
stadium seating, prestressed beams and the No project is too big or too sophisticated-
like. A full service from CAD design to from assisting with the design of retaining
installation of the final product is offered. systems to the development of international
standard sports stadia (an Olympic
Our range of standard products includes initiative). A variety of assets include
large diameter pipes, culverts and retaining handling equipment suited to lifting up to
walls but we are fully geared to handle 100 ton beams.
special projects. We also offer pipes with a
range of lining for sewer or other specific Precast solutions usually offer a time saving
applications, such as cast in HDPE lining and in fast track construction such as multistorey
CAC (calcium aluminate cement) lining. buildings and car parks and often feature
prominently in nominations and awards
Our quality standards have been recognised such as the Fulton Award and CMA Awards
by the award of the international ISO known for their recognition of excellence in
9001 : 2000 certificate. the use of concrete.
 Rectangular Portal Culverts and Bases
Class “S” -SANS 986

PORTAL BASE
S H d W T t h V Mass D BW Mass
t/m t/m
3600 3000 300 4100 250 185 200 200 6.10 250 S+700 2.58
2400 4000 200 135 4.90
2100 200 135 4.70
1800 200 135 4.50
1500 200 135 4.30
1200 200 150 4.09
900 200 165 3.86
3000 3000 250 3500 250 185 200 200 5.23 200 S+600 1.72
2400 3400 200 135 4.04
2100 200 135 3.84
1800 200 135 3.64
1500 200 135 3.44
1200 200 150 3.23
900 200 165 3.00
600 200 180 2.75
2400 2400 200 2800 200 135 200 200 3.33 200 S+500 1.36
2100 2730 165 100 2.74
1800 165 100 2.59
1500 165 100 2.44
1200 165 115 2.28
900 165 130 2.10
600 165 145 1.90
2100 2100 180 2500 200 135 200 200 2.86 200 S+500 1.24
1800 2430 165 100 2.32
1500 165 100 2.16
1200 165 115 2.02
900 165 130 1.84
600 165 145 1.64
1800 1800 160 2200 200 135 200 200 2.42 180 S+500 0.98
1500 2130 165 100 1.94
1200 165 115 1.78
900 165 130 1.60
600 165 145 1.40
1500 1500 140 1830 165 100 200 200 1.73 140 S+400 0.62
1200 1780 140 95 1.42
900 140 110 1.27
600 140 125 1.11
450 140 132 1.01
1200 1200 140 1480 140 100 100 70 1.24 140 S+400 0.52
900 1440 120 90 0.98
600 120 100 0.84
450 120 105 0.76
900 900 130 1140 120 100 100 70 0.87 140 S+300 0.39
750 1100 100 80 0.70
600 100 85 0.64
450 100 90 0.58
750 750 120 950 100 76 100 70 0.63 140 S+300 0.34
600 100 82 0.57
450 100 87 0.51
600 600 100 780 90 76 100 70 0.46 140 S+300 0.29
450 90 80 0.40
450 450 100 620 85 76 100 70 0.35 120 S+300 0.20
300 85 80 0.29

Precast Concrete Specialists

 Rectangular Portal Culverts and Bases
Class “S” -SANS 986

Nominal Length 2440mm. Shorter and skew culverts available on request.

Rectangular Portal Culverts manufactured to Spoornet loadings and specifications are also available on request.

PORTAL

BASE

Precast Concrete Specialists

 Specialist Concrete Products

As specialists in the manufacture of concrete products, we offer more than a standard

product range of pipes and culverts. In fact, an extensive range of specialist products
is available. We have the capabilities to custom produce to any particular method of
construction and assess each product requirement and manufacture accordingly. This
often results in the development of an entirely new method of production designed
specifically for the manufacture of a particular product. Our large facilities allow us
to undertake major contracts that require casting and handling of units that weigh up
to 100 tons. In particular, we specialise at coastal level in purpose designed high
durability corrosion resistant concrete.

Precast Concrete Specialists

Specialist Concrete Products

Precast Concrete Specialists

 Specifications

SANS 676 –
Reinforced Concrete Pressure Pipes

SANS 677 –
Concrete Non Pressure Pipes

SANS 986 –
Rectangular Portal Culverts

Concrete Units commits itself to a policy

of total quality assurance and are
accredited with ISO 9001:2000
certification.

The aim of the CMA is to promote the

increased and most effective use of
precast concrete products, used in the
construction industry, by architects,
engineers, specifiers, contractors and
end users in a professional manner for
the benefit of all.

In order to increase the lifespan of

concrete pipes for sewer applications
an additional dolomitic sacrificial layer
of 13mm or 19mm is added to the host
CORROSION pipe. Alternatively, a CAC or HDPE lined
pipe is also available. Purpose designed
PROTECTION
high durability concrete in the coastal
zones is also an option.

Precast Concrete Specialists

Testing of products in accordance with
SANS specification

Precast Concrete Specialists

 Spigot and Socket Pipes - SANS 677 Type SC or SI

Inside Wall Outside Outside

Nominal
Diameter Thickness Diameter Diameter A Slip S Length Vol/m Mass
Diameter
Barrel T Barrel Collar mm m m3 t/m
mm
mm mm mm mm

300 All Classes 298 35 368 464 114 2.5 0.07 0.120

375 All Classes 369 38 445 540 127 2.5 0.08 0.145

450 All Classes 445 44 533 641 127 2.5 0.09 0.225

525 All Classes 514 51 616 730 121 2.5 0.11 0.270

600 All Classes 590 55 700 880 150 2.5 0.13 0.345

50D 730 60
750 850 1035 150 2.5 0.22 0.583
75D+100D 690 80
50D 900 75 0.27 0.716
900 1050 1250 150 2.5
75D+100D 860 95 0.32 0.848
50D 1030 85 0.34 0.901
1050 1200 1400 165 2.5
75D+100D 980 110 0.42 1.113
50D 1195 90 0.42 1.113
1200 1375 1595 175 2.5
75D+100D 1135 120 0.53 1.405
50D 1350 100 0.53 1.405
1350 1550 1770 180 2.5
75D+100D 1280 135 0.67 1.776
50D 1510 140 0.63 1.670
1500 1720 1960 190 2.5
75D+100D 1440 105 0.70 2.094
50D 1640 130 0.83 2.200
1650 1900 2140 190 2.5
75D+100D 1600 150 0.94 2.491
50D 1830 140 1.00 2.650
1800 75D 1790 160 2110 2350 190 2.5 1.11 2.942
100D 1750 180 1.22 3.233

S Length

T
OUTSIDE DIAMETER A

OUTSIDE DIAMETER
INSIDE DIAMETER

ELEVATION

Precast Concrete Specialists

 Ogee Pipes - SANS 677 Type SC

Inside Wall Outside

Nominal
Diameter Thickness Diameter Length Vol/m Mass
Diameter
Barrel T Barrel m m3 t/m
mm
mm mm mm

300 All Classes 290 40 370 2.5 0.04 0.11

375 All Classes 360 50 460 2.5 0.05 0.13

450 All Classes 440 50 540 2.5 0.07 0.18

525 All Classes 525 50 625 2.5 0.09 0.24

600 All Classes 590 55 700 2.5 0.11 0.29

675 All Classes 655 60 775 2.5 0.13 0.34

50D+75D 730 60 2.5 0.15 0.40

750 850
100D 690 80 2.5 0.19 0.50
50D+75D 820 65 2.5 0.18 0.48
825 950
100D 790 80 2.5 0.22 0.58
50D+75D 900 75 2.5 0.23 0.61
900 1050 0.29
100D 860 95 2.5 0.77
50D 1030 95 2.5 0.30 0.70
1050 1200 0.38
75D+100D 980 110 2.5 1.00
50D 1195 90 2.5 0.36 0.95
1200 1375 0.47
75D+100D 1135 120 2.5 1.24
50D 1350 100 2.5 0.46 1.21
1350 1550 0.60
75D+100D 1280 135 2.5 1.58
50D 1510 105 2.44 0.53 1.40
1500 1720 0.69
75D+100D 1440 140 2.44 1.82
50D 1640 130 2.44 0.72 1.90
1650 1900 0.82
75D+100D 1600 150 2.44 2.16
50D 1830 140 2.37 0.87 2.30
1800 2110 1.09
75D+100D 1750 180 2.37 2.88

Length

T
INSIDE DIAMETER
OUTSIDE DIAMETER

ELEVATION

Precast Concrete Specialists

 The Precast Concrete Specialists

Since inception, Concrete Units have been regularly recognised for their achievements
as specialists in the manufacture of concrete products by acknowledgement from
prominent industry bodies with various nominations and awards.

Precast Concrete Specialists

MEYERTON CAPE TOWN

Verwoerd Street • Meyerton • 1961 Montreal Drive • Airport Industria • Cape Town
PO Box 694 • Meyerton • 1960 PO Box 6074 • Roggebaai • 8012
Tel: +27 16 362 2236 Tel: +27 21 386 1923
Fax: +27 16 362 2235 Fax: +27 21 386 2514
E-mail: precast@concreteunits.co.za
Website: www.concreteunits.co.za

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