1553Flexural Strength

Flexural strength is the strength of concrete under bending. In designing concrete pavements, flexural strength is often used because it better simulates what happens when a slab is loaded by a truck or other vehicle. Most general-use concrete has a flexural strength between 3.5 and 5 MPa.

In general, a relationship exists between the compressive and flexural strengths of concrete. Concrete, which has a higher compressive strength, will have a correspondingly higher flexural strength. This holds true for HPC. However, in many cases, fly ash concrete has demonstrated flexural strength exceeding that of conventional concrete when compressive strengths were roughly equal.

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