Percentage of silica in good brick earth should be about _________(a) 10-15%(b) 20-35%(c) 50-60%(d) 80-90%The question was posed to me in an interview for internship.This key question is from Bricks topic in portion Glass, Lime, Clay Products & Bricks of Construction & Building Materials

Percentage of silica in good brick earth should be about _________(a)

1.	Percentage of silica in good brick earth should be about _________(a) 10-15%(b) 20-35%(c) 50-60%(d) 80-90%The question was posed to me in an interview for internship.This key question is from Bricks topic in portion Glass, Lime, Clay Products & Bricks of Construction & Building Materials
Answer» The CORRECT option is (c) 50-60% To explain I would say: Percentage of SILICA in GOOD brick earth should be about 50-60%. Silica exists in clay either in the COMBINED state or in the free state. Its presence prevents shrinking and CRACKING of raw bricks.

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Percentage of silica in good brick earth should be about _________(a) 10-15%(b) 20-35%(c) 50-60%(d) 80-90%The question was posed to me in an interview for internship.This key question is from Bricks topic in portion Glass, Lime, Clay Products & Bricks of Construction & Building Materials

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