9.1.3. Flexural Strength

Try these first

1. 1.

   What is flexural strength?

   Hint

   Think about bending forces.

2. 2.

   What does modulus of rupture refer to?

   Hint

   Remember, it’s all about bending.

3. 3.

   What is flexural strength a measure of?

   • Tensile strength
   • Compressive strength
   • Resistance to bending

   Hint

   Focus on how a material flexes.

4. 4.

   Flexural strength is also known as?

   Hint

   Consider alternative nomenclature.

5. 5.

   A road slab experiences bending due to the weight of traffic. The water-cement ratio is increased to 0.70. Predict the potential impact on the slab’s flexural strength and suggest remediation steps.

   Hint

   Consider how water content impacts the structure.

6. 6.

   Given a concrete beam that passed a flexural strength test with a failure load of 30 kN and a span length of 3 m, calculate the modulus of rupture.

   Hint

   Understand how load relates to dimensions in bending.