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Comparative Study of M20 and M25 grades of Concrete by ACI, DOE and BIS Methods of Mix Design Using Crushed Aggregate. int.jour.sci.res.mana [Internet]. 2017 Jul. 14 [cited 2024 May 7];5(7):6377-83. Available from: https://ijsrm.net/index.php/ijsrm/article/view/996