SOME CONTRASTS BETWEEN PEDOGENIC AND TRADITIONAL MATERIALS
This introductory paper comments on the definition and classification of pedogenic materials, briefly discusses engineering properties and performance, and makes observations on problems associated with such materials. Pedogenic materials have been defined as chemical precipitates (calcium carbonate-calcrete; iron oxide- ferricrete; etc.) that are deposited in a particular layer of the soil profile or in the predological B-horizon by the mechanism of illuviation. The most useful classification system is one combining a genetic term with the traditional soil textural terms. Differences in the engineering properties (composition, hydration, Atterberg limits, stabilization, etc.) of pedogenic and tranditional roadbuilding materials are tabulated.
- This document was reprinted from: Proceedings of the Sixth Regional Conference for Africa on Soil Mechanics and Foundation Engineering, Durban, South Africa, September 1975, Volume 1.
National Institute for Road Research, South AfricaP.O. Box 395
Pretoria, Transvaal, South Africa
- NETTERBERG, F
- Publication Date: 1975
- Features: Tables;
- Pagination: 2 p.
- TRT Terms: Definitions; Laterites; Lateritic soils; Properties of materials; Soil types; Soils; Specifications
- Old TRIS Terms: Soil classification systems
- Subject Areas: Geotechnology; Highways; Materials;
- Accession Number: 00147728
- Record Type: Publication
- Report/Paper Numbers: RR 202
- Files: TRIS
- Created Date: Feb 16 1977 12:00AM