Civil Engineering Department

CE 501

Fall Semester 2003-04 (031)

Homework # 2

Due on: ___________________

Question (1):

C₃S/C₂S ratio is very important parameter in portland cement chemistry, explain the effect of this parameter in cement properties.

Question (2):

Hydration of cement is divided into four different stages; explain each in terms of heat generated, product of hydration and approximate time duration.

Question (3):

Explain the features of the pozzolanic reaction.

Question (4):

Explain the effect of pozzolan on “pore size” and “grain size” of the hydration product.

Question (5):

What is the effect of pozzolan on rate of hydration and strength gain.

Question (6):

What is the difference between fly ash Class C and F.

Question (7):

What is the effect of fly ash on workability and bleeding.