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- The 28 days cube strength of mass concre...

Q. |
## The 28 days cube strength of mass concrete using aggregates of maximum size 5 cm for gravity dams should be |

A. | between 150 to 300 kg/cm2 |

B. | between 350 to 600 kg/cm2 |

C. | between 150 to 500 kg/cm2 |

D. | below 200 kg/cm2 |

Answer» D. below 200 kg/cm2 |

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Concrete Technology and Design

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