In regards to the mix design of concrete, respond to each of the
following by showing detailed calculations. Use the tables and
figures below.
1. If the concrete characteristic strength = 40
MPa, with 2.5% defective test results, what will be the target mean
strength?
2. If the target mean strength of concrete = 30
MPa at 28 days, the coarse aggregate is uncrushed, using GP
(General Purpose) cement, what is the water cement ratio W/C?
3. If the concrete...