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In concrete masonry, a hollow concrete block has a core-void area greater than __________ of the gross area.(a) 20%(b) 15%(c) 30%(d) 25%The question was posed to me in class test.The origin of the question is Composite Masonry in division Composite Masonry of Construction & Building Materials

Answer»

Correct option is (d) 25%

To EXPLAIN: Concrete MASONRY uses two types of cement concrete BLOCKS for the CONSTRUCTION of walls – hollow concrete block and solid concrete block. A hollow concrete block has a core-void area greater than 25% of the gross area.



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