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The cavities or old Wells occur during excavation of the foundation trenches are filled with _________(a) Hard material(b) Rocks(c) Concrete(d) MurumThis question was addressed to me in homework.This interesting question is from Foundations Based on Different Conditions in section Foundations of Construction & Building Materials

Answer»

Correct choice is (c) Concrete

Explanation: To MAKE the foundation safe, such cavities or wells are need to be filled to AVOID uneven settlement in future. If the CAVITY is small, it is filled with concrete. But if the cavity is large enough to make the feeling of concrete EXPENSIVE, a SUITABLE arch should be provided.



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