Pieter Vanderwerf

Pieter Vanderwerf's Posts

Help for Your Air

Maintaining the target for entrained air in fresh concrete is like walking on a tightrope over a canyon on a windy day. You have the goal to arrive at the other side. And you know the path you have to take. But it's a difficult task keeping all the variables in balance, and the consequences of failure are bad no matter which side you fall on. Read more

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What's Worrying Your QC Manager?

QC managers say testing labs often fail to follow correct procedures. The burden of proof of good performance falls to the producer. Read more

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