- Author
- Swenson, E. G.
- Title
- Portland Cements in Builing Construction.
- Coporate
- National Research Council of Canada, Ottawa, Ontario
- Report
- CBD 145; UDC 691.542, January 1972, 4 p.
- Keywords
- portland cement | building construction | manufacturing | hydration | clay
- Abstract
- The firing of stone or clay to produce cementing materials for construction is as old as recorded history. The ancient binders - lime, hydraulic lime, gypsum and certain volcanic rocks (pozzolana) - are still in use, but today they are far overshadowed by portland cement, a highly sophisticated relative of hydraulic lime.