Why do bricks become brittle when excess silica is present?

Related MCQs

• What happens to raw bricks if an excess of alumina is present?
• Hand moulded bricks take ______ days for drying while stiff-mud machine made bricks ______ days.
• Excess of lime in the brick earth makes the bricks
• Excess of iron oxide in brick earth makes the bricks
• The standard size of bricks as per Indian Standards is
• Alumina in brick earth gives the bricks
• The size of mould used for making bricks compared to size of brick is
• Gradual drying of moulded bricks is necessary to
• The indentation mark left on bricks during the process of moulding are
• To check the size of brick number of bricks to be kept side by side is