Strength properties of sandy soil-cement admixtures

• Type: Article in International Scientific Journal
• Date: 2009

Authors

António Viana da Fonseca (Author) FEUP; Rodrigo Caberlon Cruz (Author) Other; Nilo Cesar Consoli (Author) Other

Journal

Title: Geotechnical and Geological Engineering

Vol. 27 No. 6

Pages: 681-686

ISSN: 0960-3182

Indexing

ISI Web of Knowledge

ISI Web of Science

Scopus - 46 Citations

COMPENDEX

Scientific classification

CORDIS: Technological sciences > Engineering > Civil engineering > Geotechnics

Other information

Authenticus ID: P-00F-J3X

DOI: 10.1007/s10706-009-9267-y

Abstract (EN): Soil stabilization with cement is a good solution for the construction of subgrades for roadway and railway lines, especially under the platforms and mostly in transition zones between embankments and rigid structures, where the mechanical properties of supporting soils are very influential. These solutions are especially attractive in line works where other ground improvement techniques are extensive and, therefore, very expensive. On the other hand, the economic and environmental costs of such works should be optimized with good balances between excavation and embankment volumes. For this purpose, the improvement of locally available soils can bring great advantages, avoiding a great amount in borrowing appropriate material, as well as the need of disposing huge volumes in deposits. This paper focus on the characteristics of two soils, Osorio sand and Botucatu residual sandstone, which can be converted to well acceptable materials for this purpose, if stabilized with cement. The study of soil stabilization with cement relies on the quantification of the influence of percentage of cement and porosity adopted in the admixing process for different state and stress conditions. This influence will be evaluated from the analysis of unconfined compression strength (UCS or q u ) test results. This experimental framework will enable a good definition of mechanical parameters used in design of foundations and subgrades of railways platforms and for their execution quality control. © 2009 Springer Science+Business Media B.V.

Language: English

Type (Professor's evaluation): Scientific