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  1. projecticons

    concrete grades please

    thanks equimo i think your reply was just what i was looking for. the concrete grade actualy specifies the cube strenght in 28 days.grade 30(G30)means 30N/mm2 strenght whereas the concrete mix ratios stands for cement ratio to sand to coarse aggregate.but i still wonder if we can achieve such...
  2. projecticons

    concrete grades please

    i would like to know how the different concrete grades relate to concrete mixes.for example what concrete mix do i use to achieve a concrete grade 25,as well as grade 15,25,30. concrete mixes include 1:2:4, 1:3:6, etc
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