摘要: |
The principal materials used for the cementitious stabilization and modification of highway pavement materials are lime, fly ash, and portland cement. Whereas lime and portland cement are manufactured products, fly ash is a by-product. As a consequence, fly ash generally exhibits greater variability than is seen in the other products. By-products such as kiln dust and fluidized bed ash are used to a lesser extent. While all of these products and by-products are used for similar purposes, different testing, design, construction, and quality assurance/quality control methodologies have been developed for each. This paper provides further details on each of these cementitious stabilization materials. |