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In concrete masonry, a hollow concrete block has core-void area greater than __________ of the gross area.(a) 20%(b) 15%(c) 30%(d) 25%I had been asked this question in exam.The above asked question is from Stone Composite Masonry topic in division Composite Masonry of Construction & Building Materials

Answer»

Correct ANSWER is (d) 25%

The explanation is: 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 core-void AREA greater than 25% of the gross area.



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