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Light structural concrete for residential foundations, slabs, and general-purpose applications.
Light structural concrete for residential foundations, slabs, and general-purpose applications. C20 concrete is manufactured at Zanzibaba's laboratory-tested batching plant using washed sand and premium aggregates, ensuring consistent quality for residential and light structural applications across Zanzibar.
Current ZanziCore rate available on request
Indicative pricing — confirm on WhatsApp for current rates.
Compressive Strength
20 MPa
Cement Content
~250 kg/m³
Aggregate Size
20mm
Slump Range
60–120mm
Curing Period
28 days
FREQUENTLY ASKED QUESTIONS
C20 concrete is used for light foundations, residential slabs, driveways, and general-purpose concrete work where moderate strength is needed.
C20 is suitable for light residential foundations. For heavier structures or multi-story buildings, C25 or C30 is recommended.
Foundations
Concrete foundation construction — strip footings, raft foundations, pad footings and trench fill for Zanzibar projects.

Concrete Foundation Pour Zanzibar
Laboratory-tested C25 concrete poured into foundation footings for a residential villa in Paje, Zanzibar.
concrete foundations zanzibar

Strip Footing Concrete Pour Zanzibar
C30 concrete strip footing being poured for a beachfront villa foundation in Nungwi, Zanzibar.
strip footing concrete zanzibar

Foundation Reinforcement Steel Zanzibar
Rebar reinforcement cages positioned and tied for a raft foundation before concrete placement.
foundation reinforcement zanzibar

Foundation Planning Zanzibar
Site team reviewing foundation specifications and concrete volume calculations before ordering.
concrete foundation planning zanzibar
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Laboratory testing and quality assurance
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Concrete Prices
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C25 Concrete
Most popular structural concrete grade
C30 Concrete
High-strength for commercial projects
Knowledge Hub
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All Locations
Concrete delivery across all Zanzibar areas
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