Why is it that petrographic chemical analysis is required on hardened concrete even thou we have passed the Water Absorption Test and RCPT. Also there are no signs of failure. Does it mean that our client is futuristic? If you have experience these condition could you elaborate further.
Besides water absorption, petrographic analysis can be used to determine chemical attack, identification of reactive aggregate, strength, mixture proportion estimates (such as water/cement ratio), cement and fly-ash content, corrosion potential of embedded steel, degree of carbonation, aggregate size and distribution, presence of alkali-aggregate or sulfate reaction.