It appears that treatment techniques could be correlated from area to area provided suitable knowledge is known or available defining the soils in the area climatic rating Attenburg Limits and the mineralogical content of the soil. The first two do not pose a problem. In time, perhaps the latter will be commonly available.
Intuitively this would necessitate technique modification from area to area if optimum results are to be realized. Unfortunately the mineralogical breakdown of the Dallas soils was not available at the time of this report. When this information becomes available it might develop that modification of the repair technique will eliminate re-dos or permit a more economical approach. In any event, this knowledge should permit correlation of other soil problem areas to Dallas and provide a key for proper treatment design universally.
The information sought in the report could provide a technical basis for designing soil stabilization for preconstruction as well as remedial applications. Soil, properly stabilized, should not produce foundation problems. Nonetheless, if the history developed in the Dallas area could be realized in all other problem areas, foundation repair could become relatively routine.
Currently, a research project is underway which hopefully will furnish supplemental information to help make this a reality. The program is intended to establish such facts as: (1) the relationship between volume change tendencies, stabilization requirement, and mineralogical composition; (2) the chemical and physical mechanisms for stabilization; (3) effect of calcium ions and pH on stabilization; (4) reversibility of stabilization reactions; (5) does the plasticity index adequately relate various soils with respect to volume change tendencies; (6) can a stabilization agent superior to lime, to be developed. This data will be published by Robert Wade Brown and Associates, Dallas, Texas, when they become available.