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Good vibrations

1 August 2013, Build 137

One of the keys to good-quality cured concrete is correct vibration after it’s poured. This compacts it and consolidates the mix by removing trapped air. But how do you get it right?

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On the block

By Nigel Isaacs 1 December 2011, Build 127

The development of hollow-core concrete blocks offered faster, cheaper building and homes that were built to last. New Zealand was quick to make use of the new technology.

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