PAL 11-17-08

1
PAL 11-17-08

• A concrete test cylinder is 12 long with a 6
  diameter. Youngs modulus for concrete is about
  2.3 X1010 N/m2.
• If the cylinder breaks with 400,000 lbs on it,
  what is the ultimate strength of the concrete?
• What was the change in length of the concrete
  when the force was 40,000 lbs?
• Test the material given.
• Does it change by about the same amount for small
  compression and tension forces? (It should since
  E is the same for both)
• Is its shearing modulus gtlt its Youngs modulus?
• Is its compression strength the same as its
  tensile strength?