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| | Coal Fly Ash - User Guideline - Stabilized Base |
 | | The use of fly ash in stabilized base and subbase mixtures dates back to the 1950’s, when a patented base course product known as Poz-o-Pac (consisting of a blend of lime, fly ash, and aggregate) was originally developed. |
 | | Besides the gradation of the aggregate used, the pozzolanic reactivity of the fly ash is the major contributor to the strength of the base mix. |
 | | Some of the properties of stabilized base mixes that are of particular interest when fly ash is incorporated include compressive strength, flexural strength, modulus of elasticity, bearing strength, autogeneous healing, fatigue, freeze-thaw durability, and permeability. |
| www.tfhrc.gov /hnr20/recycle/waste/cfa55.htm (5444 words) |
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