Which of the following additives/water proofing agents is added to lower the hydrophilic (moisture loving) characteristic of cement ?

Related Mcqs:

1. Hydrophilic group of a soap or detergent solution is____________________?

   A. Water hating B. Soil loving C. Water loving D. None of these...

2. The compressive strength of cement should not be less than about 110Kg/cm2 after three days & not less than 170Kg/cm2 after seven days. The fineness of an ordinary cement as determined by turbidimetric method should be about ________________ cm2/gm?

   A. 800 B. 1600 C. 4000 D. 8500...

3. Cement setting under water employs a/an _______________ process ?

   A. Hydration B. Decomposition C. Oxidation D. Reduction...

4. Stereospecific agents are exemplified by________________?

   A. Radiation B. Supported metal oxide catalysts C. Ziegler catalysts D. All A , B. & C...

5. Which of the following is the second major component of cement ?

   A. Al2O3 B. SiO2 C. CaO D. Fe2O3...

6. Lime and soda ash are added to water to remove ___________________?

   A. Bicarbonates & sulphates of calcium and magnesium B. Undesirable taste and odour C. Bacteria D. Its corrosiveness...

7. Production of one ton of cement requires about _______________ tons of limestone ?

   A. 0.6 B. 1.2 C. 2.2 D. 3.8...

8. Fusion of limestone and ______________ produces high alumina cement?

   A. Sand B. Bauxite C. Quicklime D. Calcite...

9. Portland cement consists mainly of__________________?

   A. CaO & SiO2 B. SiO2 & Al2O3 C. CaO & Al2O3 D. CaO & Fe2O3...

10. Main constituents of Portland cement are calcium aluminate and__________________?

    A. Gypsum B. Silicates C. Sodium silicate D. Carbonates...