Project Knowledge Base
Broadmeadows Town Centre — Stage 2
Project Specification v5 — Structural
AS 3600:2018 — Site Reference
ITP-07 Concrete Pour Checklist v2
Head Contract — GC21 Conditions
4 documents · 312 sections indexed
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What’s the minimum concrete cover for the ground-floor slab reinforcement?
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Source Project Specification v5 · §4.2.3 Reinforcement & Cover
“Minimum cover to reinforcement for suspended slabs shall be 25 mm (exposure classification A2). For any face cast against or in contact with the ground, cover shall be 75 mm, or 50 mm where a damp-proof membrane is provided.”
Source AS 3600:2018 · Table 4.10.3.2 Standard formwork & compaction
“Exposure classification A2, standard formwork and compaction — required cover to reinforcement: 25 mm (minimum f′c 25 MPa).”
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The match score shows how closely this answer tracks the indexed text — not whether that text is the current revision or right for this slab. Spec and standard agree at 25 mm for A2, but cover depends on the concrete grade and exposure, and any slab-on-ground face needs the higher cast-against-ground figure. Confirm the exposure classification and the cover schedule with the project engineer before the pour.
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