How Quickly Concrete Must Be Used Once Delivered In London Traffic
Concrete needs to be poured within 90 to 120 minutes of mixing to maintain good quality. London traffic makes this tricky, so planning is huge. Delays mean concrete gets stiff and weak. British Standards say 2 hours maximum from batching to pouring. Special chemicals called retarders can add 1-2 extra hours if you need them. […]
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