Defective Concrete Foundations at Ripon Traction Substation for a Period of 06 Months

E2627NTCSAMWPR

2026-06-19 10:00

2026-07-10 10:00

5 CE

Civil Works Services, Construction and Building Services

Gauteng, Johannesburg, Sandton

ESKOM

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Tender Number: E2627NTCSAMWPR
Department: Eskom National Transmission Company of South Africa
Tender Type: Request for Bid(Open-Tender)
Province: National
Closing Date: Friday, 10 July 2026 - 10:00
Place where goods, works or services are required: Megawatt Park, 2 Maxwell Drive - Sunninghill - Sandton - 2157
Special Conditions: A compulsory site visit meeting will be held on: - Date: 25 June 2026 - Time: 10h00 (SAST) - Venue: Ripon Traction Substation - GPS Coordinates: 33.077531S 25.846946E Note: Failure to attend the compulsory site visit, will result in your tender being disqualified.
ENQUIRIES:
Contact Person: Dineo Maepa
Email: [email protected]
Telephone number: 017-749-5775
FAX Number: N/A
BRIEFING SESSION:
Is there a briefing session?: Yes Is it compulsory? NO
Briefing Date and Time: Friday, 19 June 2026 - 10:00
Briefing Venue: https://teams.microsoft.com/meet/395363784914145?p=ZCHnhPS1dPtLrbIgH5

This tender is also available from www.etenders.gov.za


Tender Summary

Objectives

The primary objective of this tender is to carry out refurbishment of cracked concrete foundations at the Ripon Traction Substation. The work involves repairing and strengthening existing foundations to ensure structural integrity and compliance with relevant standards.

Scope

The scope of work includes:

  • Assessment and preparation of existing cracked foundations
  • Scrabbling and surface preparation of the foundations
  • Application of Sikatop-Armatec F 610 Epochem on all surfaces
  • Pouring new concrete with specified strength and finish
  • Installation of Y16 tie bars grouted into existing concrete
  • Ensuring no over-excavation below the bottom of existing foundations

Technical Requirements

The technical requirements specify adherence to standards and detailed procedures, including:

  • Concrete strength at 28 days: 25/19 MPa for foundation concrete
  • Concrete slump: 75mm with a tolerance of 25mm
  • Minimum cover to reinforcement: 50mm
  • Top edges to have 20 x 20 mm chamfer
  • Finish of concrete: wood float finish on top, smooth shutter finish on sides
  • Use of specified materials such as Sikatop-Armatec F 610 Epochem and Fischer injection mortar
  • Installation of 220 Y16 tie bars, grouted 250mm into existing concrete
  • All work to conform with SANS 1200 series of specifications

Skills Requirements

The successful contractor must possess:

  • Expertise in concrete repair and foundation refurbishment
  • Experience with surface preparation and crack injection techniques
  • Knowledge of the specified materials and their application procedures
  • Ability to work within strict tolerances and standards
  • Capability to coordinate installation of reinforcement and grouting procedures
  • Compliance with safety and quality standards relevant to substation construction and refurbishment
This summary is AI generated. Download the tender documents for all the information.

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