Did you know that the characteristic strength of concrete is a measure of the compressive strength that concrete is expected to archive after a specific curing period of 28days? It is defined as the strength below which not more than 5% of the test results are expected to fall. For example, if a concrete mix is designed to have a characteristic strength of 30Mpa,it means that the 95% of the test results should have a comprehensive strength of aleast 30Mpa. For more civil engineering updates, follow Lahka Ibrahim. Construction 🚧 is my passion 🦺🥾🥾👷‍♂️👷‍♀️