2.6. Procedure

Try these first

1. 1.

   What is the primary purpose of the compressive strength test?

   Hint

   Think about why we assess concrete in construction.

2. 2.

   Name one type of specimen used in the flexural strength test.

   Hint

   Consider what shape would represent bending.

3. 3.

   What is the main objective of the compressive strength test?

   • To assess quality
   • To measure flexibility
   • To evaluate tensile strength

   Hint

   Think about what makes concrete strong.

4. 4.

   Flexural strength testing mainly applies to which types of concrete structures?

   • True
   • False

   Hint

   Recall where bending occurs.

5. 5.

   Given a standard cube specimen with a maximum load of 350 kN and a cross-sectional area of 22500 mm², calculate the compressive strength.

   Hint

   Remember the formula f_c = P/A.

6. 6.

   A bond strength test shows a maximum pull-out load of 10 kN for a steel bar with a diameter of 12 mm and an embedment length of 100 mm. Calculate the average bond stress.

   Hint

   Use the bond strength formula.