What is the concrete and grade of ratio and purpose of m5?

M5 concrete is a mix with a nominal ratio of 1:5:10, consisting of one part cement, five parts sand, and ten parts aggregate (gravel or crushed stone). This mix typically yields a compressive strength of about 5 MPa (megapascals) at 28 days. M5 concrete is primarily used for applications that require low strength, such as bedding for pipes, footings for small structures, and other non-structural elements. Its purpose is to provide a cost-effective solution for projects where high strength is not critical.