Objectives

The primary objective is to construct a durable, code-compliant concrete road section along Lotus Road in Ward 11, integrating proper drainage and earthworks. The project aims to deliver functional municipal infrastructure within a strict six-week execution window while adhering to national engineering standards, health and safety legislation, and public procurement frameworks.

Scope of Work

• Site Clearance: Clear and grub the entire road reserve, removing all vegetation, debris, and unsuitable material.
• Roadbed Preparation: Excavate a 150 mm undercut, proof-roll, compact in-situ material to 95% Modified AASHTO density, replace non-compliant soil, and shape to the engineered profile.
• Concrete Pavement: Construct a 100 m × 5 m reinforced concrete slab with a 150 mm thickness, utilizing 25 MPa grade concrete, 75–100 mm slump, and maximum 19 mm aggregate.
• Reinforcement: Install Ref 193 welded steel mesh positioned at mid-depth with minimum 300 mm lap overlaps.
• Formwork & Finishing: Erect true-to-line formwork, place and poker-vibrate concrete, and apply a broom finish for skid resistance.
• Joints & Curing: Form contraction joints at 3–6 m intervals, install expansion joints where required, seal all joints, and cure for a minimum of seven days.
• V-Drain Construction: Build a 100 m long, 1 m wide, 330 mm deep V-drain on one side, lined with 150 mm thick 20 MPa concrete, graded for efficient water runoff.
• Earthworks: Execute cut-and-fill operations, compact selected layers to 93% Modified AASHTO density, and manage spoil disposal within prescribed haul limits.

Technical Requirements

• Standards & Legislation: All works must comply with SANS 1200, COTO Standard Specifications, SABS material standards, and relevant South African statutes including the Occupational Health and Safety Act, Construction Regulations, COID Act, Income Tax Act, VAT Act, CIDB guidelines, and Municipal Finance Management Act.
• Quality Assurance: Batch plant delivery notes and compressive strength test results must accompany all concrete deliveries. An engineer must inspect reinforcement prior to pouring. Strict tolerances apply: surface level ±10 mm, thickness −5/+10 mm, alignment ±10 mm.
• Pricing & Validity: Quotations must be fully inclusive of labour, plant, materials, transport, wastage, testing, insurance, and health and safety costs. Prices must remain binding for 120 days.
• Contractual Framework: Governed by General Conditions of Contract (GCC) 2015, 3rd Edition, and evaluated under the PPPFA scoring system. Bidders must be active on the Central Suppliers Database (CSD).
• Health & Safety: Contractors must prepare, submit, and maintain a statutory H&S file, including risk assessments, method statements, PPE provision, traffic accommodation, and site induction protocols.

Skills & Experience Requirements

• Project History: Demonstrated track record in concrete road construction. Preference is awarded to bidders with more than five completed projects; a minimum of two is expected.
• Key Personnel: A competent foreman, technician, or site agent with direct experience in concrete road works. Candidates with over five years of relevant experience receive maximum scoring.
• Documentation: Detailed CVs for key personnel and verifiable proof of past engagements (appointment letters, completion certificates, or client references) must be submitted.
• Execution Capability: Proven ability to manage resources, enforce quality controls, maintain regulatory compliance, and complete all works within six weeks of contract award.

Notes on Specialized Terms

• Modified AASHTO Density: A stringent soil compaction standard developed by the American Association of State Highway and Transportation Officials, requiring higher compaction energy than standard methods to achieve optimal subgrade strength and load distribution.
• Ref 193/195 Welded Mesh: Pre-fabricated steel reinforcement grids specifically rated for concrete pavements, designed to control thermal cracking and evenly distribute vehicular loads across the slab.
• F2 Surface Finish: A standardized concrete finishing specification that mandates a textured, broom-treated surface to ensure adequate friction and skid resistance for road traffic.
• GCC 2015 & PPPFA: The General Conditions of Contract define the legal, administrative, and dispute-resolution framework for South African public sector procurement. The PPPFA (Preferential Procurement Policy Framework Act) dictates scoring methodology, balancing technical merit, price, and historical transformation targets.