A. Are not resistant to the action of basic slags B. Combine with salts (e.g. chlorides sulphates etc.) & bases (e.g. lime, magnesia etc.) forming FusIble aluminates silicates etc C. Shrink during firing
A. Reduced by the addition of acid oxides B. Increased by the addition of acid oxides C. Not affected by the addition of acid oxides D. Always less than 1000°c
A. Increases with decrease in porosity B. Decreases with decreases in porosity C. Is independent of its porosity and is maximum for insulating bricks D. Increases with the amount of air entrapped in pores
