Fall Semester
2003-04 (031)
Homework # 3
Question (1):
Chemical admixtures are used to improve concrete properties. Explain the major reasons for using such admixtures.
Question (2):
When superplasticizers admixture shall be used?
Question (3):
Water exists in hydrated cement paste in different forms, explain the effect of each on shrinkage of the hcp.
Question (4):
Explain the effect of cement and water content on shrinkage of cement paste.
Question (5):
Explain the characteristics of the transition zone.
Question (6):
Explain the effect w/c on the pore size distribution on hydrated cement.
Question (7):
What are the factors affecting the adhesion force between the hydration products and the aggregate particles (Van der Waals force).