GRADES of concrete and their uses | Use of M10,M15,M20,M25 grades in construction work | Civil Tutor

Download our android app for job oriented courses https://clpsheldon.page.link/x3kb In this tutorial i have discussed briefly the different grades of concrete and their uses in which I have included concrete cube test, groups of concrete grades and uses of concrete grades. After watching the complete lecture, you will know the use of M19,M15,M20,M25 grades in construction work quantity surveying topics compiled PDF part 1 👇🏻👇🏻 https://imojo.in/2NE9ex Quantity surveying topics compiled PDF Part 2 👇🏻👇🏻 https://imojo.in/quantitysurvey2 2nd channel 👇🏻 https://www.youtube.com/Civiltutorofficial #concretegrades #ErMuyeenMubarak #civiltutor #concrete technology #civilengineering The grade of concrete is defined as the minimum strength achieved by concrete after 28 days of construction with proper quality control. The grade of concrete is the designation of concrete according to its compressive strength. According to Indian standards, Concrete grade is generally represented by the letter "M" which is followed by a number (e.g., M20). The "M" represents the mix design of concrete and the number represents its characteristic compressive strength in N/mm2 at 28 days which is obtained from the concrete cube test. What is a concrete cube test? The concrete cube test is performed to determine the compressive strength of a concrete element. The cubes used for this test have a dimension of 150 x 150 x 150 mm. As per IS 456 2000, Concrete grades are categorized as per their compressive strength based on cube test.