For concrete exposed to a very aggressive environment the w/c should be lower than _____

Maximum size of aggregates are used to produce 70MPa compressive strength is ____

What is concrete maturity?

____________ mm nominal maximum size aggregates gives optimum strength.

For high-strength concrete, a cement should produce a minimum 7-days mortar-cube strength of approximately ___ MPa.

What does 240 in power’s experiment stand for?

Due to low w/c ratio _________

The choice of cement for high-strength concrete should not be based only on mortar-cube tests but it should also include…