9.1.2. Tensile Strength

Try these first

1. 1.

   Define tensile strength in concrete.

   Hint

   Think about how concrete behaves under pulling forces.

2. 2.

   What percentage of compressive strength is tensile strength typically?

   Hint

   Consider the relationship between these two types of strength.

3. 3.

   What is the primary characteristic measured by tensile strength?

   • Resistance to compression
   • Resistance to axial tensile load
   • Resistance to bending

   Hint

   Think about what happens when you pull on concrete.

4. 4.

   True or False: Tensile strength is typically about 5% of compressive strength.

   • True
   • False

   Hint

   Reflect on the typical ratios we've discussed.

5. 5.

   Evaluate a case study where a pavement cracked due to improper tensile strength. Suggest different design techniques to enhance its tensile strength.

   Hint

   Consider different ways of mixing and testing concrete.

6. 6.

   Given a concrete sample with a compressive strength of 50 MPa, calculate the expected tensile strength and explain your reasoning.

   Hint

   Remember our discussion of the relationship between different strengths.