NT Build 492 provides data for durable concrete
NT Build 492 is a test that determines the diffusion coefficient of concrete. Diffusion is the movement of a dissolved substance under a concentration gradient. That is, ions in solution […]
Testing
Can you get a representative sample of concrete?
A representative sample of anything is an unbiased selection from the whole population. It’s a statistical concept that applies to everything from opinion polls to laboratory testing. In principle it […]
Make sure you take good concrete cores
We often receive concrete cores from our clients for petrography or other types of testing. When we haven’t witnessed the coring, we can’t always tell whether a core represents damaged […]