As a structural engineer, you have been requested by a client to check the

performance requirements of 2 concrete mix designs, Mix A and Mix B. The tests will

investigate both fresh and hardened concrete properties. The concrete Mix A and

Mix B will be used for the construction of a residential building located in Sydney

more than 20km from the coast. The fresh and hardened concrete properties tested

are:

1) Workability

2) Air content of fresh concrete

3) Compressive Strength

4) Modulus of Elasticity (MOE)

5) Indirect Tensile Strength (splitting tensile strength)