Scientists examined samples from this ancient Roman pier with very high-powered X-rays Researchers have unlocked the chemistry of Roman concrete which has resisted the elements for thousands of years.

video How reinforced concrete works To demonstrate the power of reinforced, a beam is tested with a 2.5 tonne load to see if it will crack. What is the chemistry behind its strength? How the ...

Mark explains why he loves concrete and describes why so many of ... This clip will be relevant for teaching Chemistry. This topic appears in OCR, Edexcel, AQA, WJEC KS4/GCSE in England and ...