Evaluation of Chemical Stabilizers: State-of-the-Practice Report

[mahyarov]

Evaluation of Chemical Stabilizers: State-of-the-Practice Report

Author: Transportation Research E-Circular | Size: 986 KB | Format: PDF | Quality: Original preprint | Publisher: Transportation Research Board | Year: 2005 | pages: 24

The objective of this circular is to provide information on practices that agencies have found to be successful and provide a reasonable degree of uniformity and standardization in the evaluation of chemical stabilizers used in soil stabilization. The circular is intended to provide the potential user of any chemical stabilizer with important points to consider in evaluating whether or not the stabilizer is suitable for the intended use. Agencies have found that test results from either laboratory tests or field evaluation tests need to be presented in comparison with those performed on untreated soils under the same environmental and loading conditions. For the untreated soils (control specimens), experience has shown that all mixing and mechanical manipulations of the in-place soil should be similar to those performed on the treated soils. The use of the procedures outlined in this circular can assist in achieving a more uniform approach to the evaluation of chemical stabilizers. However, engineers who are thoroughly familiar with chemical stabilizers or those who are seeking specific performance criteria from the stabilized soil may prefer to use a modified performance testing technique that would be more applicable to the intended use of the product. In such cases, the procedures outlined in this circular may be considered as a norm for judging whether the results obtained using modified techniques are sufficiently different to warrant a departure from the approach described in this circular.

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