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The Dura System Tank

Applications

These tanks can be used in any number of applications, such as:

  • Aeration Tanks
  • Anaerobic Digester Tanks
  • Buffer Tanks
  • Clarifier Tanks
  • Clear Water Tanks
  • Fermentation Tanks
  • Filtration Tanks
  • Industrial Tanks
  • Manure Storage Tanks
  • Mining Water Tanks
  • Potable Water tanks
  • Settlement Tanks
  • Sewage Tanks
  • Slurry Tanks
  • Thermal Energy Tanks
  • Township Development Tanks
  • Waste Water Treatment Tanks
  • Water Purification Tanks
  • Water Storage Tanks

The Post-tensioned Panel Reservoir is available in volumes that range from 174m3 (174,000lt) to 5,715m3 (5,715,000lt).

Key Features

  • We cast elements from 3m up to 7m in height, diameter ranging from 8.6m to 32.60m
  • Our reservoirs contain water from 159Kl to 5,600Kl
  • We cast our elements in a controlled environment with a C 35/45 XA3 XF3
    concrete mix design with graded dolomite aggregates
  • We strip within 12 hours so our final concrete strength is well over 50MPa
  • Thickness of the elements are between 130 – 160mm
  • We make use of 9mm pre-stress cables that is stressed vertical in the elements.
  • Rest of the reinforcing is 6mm welded mesh for crack control.
  • The hoop tension are addressed with 15mm post-tension cables that run horizontally and the tension is calculated for the specific reservoir depth and diameter.
  • All stressing cables Fep 1570/1770
  • The post tension gables are grease and plastic coated and ran in ducts. This aids in the corrosion resistance of the hoop steel.
  • The concrete cover on the reinforcing is from the inside of the tank 45mm and from the outside 32mm.
  • The joint between the elements are sealed with a special grout from Sika that can handle the pressure of the post tension.
  • The inside of the joint is sealed with a polyurethane seal.
  • Where the floor and wall join, we make use of Sika swell cast into a concrete ring beam.
  • We manufacture the tanks under licence from Famitec in Holland.
  • Our tanks conform to the strict Eurocode 2 part 3.

Design Specifications

Design Code Standard
EUROCODE 2 Design of concrete structures - Part 3 "Liquid retaining and containment structures".
The South African Standard Code of Practice Structural use of Concrete: SABS 0100-1 Edition 2.2 (2000).
The British Standard Code of Practice for Design of Concrete Structures for retaining Aqueous Liquids: BS 8007:1987.
SABS 01060-1989: Design loading for water retaining reservoirs, as amended 1990, 1991, 1993.a
Waste water treatment plant

Dura Tank Design Codes & Standards

SMEC Africa was appointed by Aquadam to design various Dura reservoirs to be constructed for numerous projects according to specific design codes and standards.

Industrial liquid storage concrete reservoir

Factory & Manufacturing

All installation materials are locally sourced and converted in our factory into a product that is aesthetically pleasing to the eye, yet offers unsurpassed quality and performance for the end user. Aquadam holds stock of the Smart Tank up to 12 metres in diameter enabling us to deliver even faster, streamline the process and improve on your expectations.

Large scale industial concrete reservoirs

Custom-Designed
Custom-designed and manufactured precast concrete panel reservoir

Each system is custom-designed and manufactured according to specific requirements. Standard precast concrete panels are cast in our own factory to ensure exceptional quality, and are assembled on-site on a cast-in situ bottom slab. Individual panels are 1 575mm wide, between 130mm and 160mm thick, and vary in height from 3 to 7 meters. The number of panels used in a single reservoir installation can range from 15 to 66 panels, which means the system offers outstanding versatility.

The vertical joints between the pre-cast panels consist of a waterproofing mortar, and once the panels and joints have been assembled the entire system is post-tensioned using horizontal circumferential mono strands. Together, this ensures that the system is perfectly watertight and exceptionally durable.

Manholes, pipes, anchorages etc. are cast into the concrete panels during the manufacturing process as required, and the concrete panel tank system can be closed with a pre-cast or cast-in situ concrete roof.

Because the panels are longitudinally prestressed, the concrete reservoir is stressed both vertically and circumferentially, resulting in a structurally sound and stable system.

Easy Installation

Installation of these prefabricated concrete panel tanks is quick and can take place in almost all weather conditions. In addition, the mechanised, low labour-intensive installation procedure makes for a safer working environment.

The Aquadam Prestressed Panel Reservoir is designed to exacting standards and meets the highest European standard of water tightness, Eurocode 2: Design of concrete structures – Part 3 Liquid retaining and containment structures.

Dimensions
Volume in m3 / KL Freeboard = 300mm
Tank Model Tank Diameter Wall Height (M)
3.0 5.0 6.0 7.0
MT18 8.60 159 276 335 394
MT20 9.50 196 341 414 486
MT22 10.50 237 413 501 588
MT24 11.50 282 491 596 700
MT26 12.50 331 576 699 822
MT28 13.40 384 669 811 953
MT30 14.40 441 768 931 1,094
MT32 15.40 502 873 1,059 1,245
MT34 16.30 566 986 1,196 1,405
MT36 17.30 635 1,105 1,340 1,576
MT38 18.30 707 1,231 1,493 1,755
MT40 19.20 784 1,364 1,655 1,945
MT42 20.20 864 1,504 1,824 2,144
MT44 21.20 948 1,651 2,002 2,354
MT46 22.10 1,037 1,805 2,188 2,572
MT48 23.10 1,129 1,965 2,383 2,801
MT50 24.10 1,225 2,132 2,586 3,039
MT52 25.00 1,325 2,306 2,797 3,287
MT54 26.00 1,429 2,487 3,016 3,545
MT56 27.00 1,536 2,674 3,243 3,812
MT58 28.00 1,648 2,869 3,479 4,090
MT60 28.90 1,764 3,070 3,723 4,376
MT62 29.90 1,883 3,278 3,976 4,673
MT64 31.60 2,007 3,493 4,236 4,979
MT66 31.90 2,134 3,715 4,505 5,295
MT68 32.60 2,265 3,943 4,782 5,621