Problem
1. Name some of the commonly available industrial by-products that show pozzolanic or cementitious properties when used in combination with portland cement.
2. What do you know about the origin and characteristics of the following mineral admixtures: pumice, zeolitic tuff, rice husk ash, and silica fume?
The response should include a reference list. Double-space, using Times New Roman 12 pnt font, one-inch margins, and APA style of writing and citations.