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Materials We Use — Science STD 7 — Question

Maharashtra BoardEnglish MediumSTD 7ScienceMaterials We Use2 Marks
Question
What will happen if cement is not used in making concrete?
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Answer

  1. In making concrete strong, the ingredients cement, water, sand and gravel should usually be mixed in the ratio of 1 : 2 : 3 : 0.5 to achieve maximum strength.
  2. If enough cement is not used then the concrete will eventually fall apart, as cement is used as a binding agent.

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