Different grades of concrete | M15 M20 M25 | Cement Sand Aggregate in cft | കോണ്‍ക്രീറ്റ് ഗ്രേഡുകള്‍

Different grades of concrete. Cft of cement sand and aggregate. Sand and aggregate used for 10 bags of cement in different grades of concrete. Also calculated in cubic feet. #concrete #m15 #m20 #m25 #greadesofconcrete

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