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