Significance of cement-stabilised soil grain size distribution in determining the relationship between strength and resilient modulus

Cement-stabilised soil is commonly used to improve capping layers and in road sub-bases. The bearing capacity and durability of these layers is calculated by taking into account the bearing capacity and resilient modulus E and the strength properties of cement-stabilised soil R, in particular the compressive strength Rc and tensile strength Rt (mostly indirect tensile strength Rit). The relationship E = f(R), and hence the relationships E = f(Rc) and E = f(Rt) are directly proportional and can be used to determine the resilient modulus on the basis of the strength of the cement-stabilised soil. In most cases, the calculations used in practice provide a relationship for E = f(R) for different cement-stabilised soils irrespective of their grain size distribution. Experience shows that in many cases such an approach is too general. The main goal of this study was to understand whether the grain size distribution affects the correlation E = f(R) for different cement-stabilised soils, and if so, to quantify the effect. Based on the tests performed, the relationship between the strength and the resilient modulus for both silty-clay and sandy-gravel soils was determined. A linear relationship was found to exist between strength and resilient modulus. The study also found that the relationships E = f(Rc) and E = f(Rit) differed significantly for the two tested soil groups. This means that soil particle size distribution should be taken into account when determining the resilient modulus on the basis of strength for cement-stabilised soil and that correlations should be developed for soil groups with a similar particle size distribution.

• Record URL:
  • https://doi.org/10.1080/14680629.2017.1324808
• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/14680629
• Supplemental Notes:
  • © 2017 Informa UK Limited, trading as Taylor & Francis Group. Abstract reprinted with permission of Taylor & Francis.
• Authors:
  • Gajewska, Beata
  • Kraszewski, Cezary
  • Rafalski, Leszek
• Publication Date: 2018-10

Language

• English

Media Info

• Media Type: Web
• Features: References;
• Pagination: pp 1692-1701
• Serial:
  • Road Materials and Pavement Design
  • Volume: 19
  • Issue Number: 7
  • Publisher: Taylor & Francis
  • ISSN: 1468-0629
  • EISSN: 2164-7402
  • Serial URL: http://www.tandfonline.com/loi/trmp20

Subject/Index Terms

• TRT Terms: Grain size; Modulus of resilience; Soil stabilization; Stabilized materials; Strength of materials; Subbase (Pavements); Tensile strength
• Subject Areas: Geotechnology; Highways; Materials; Pavements;

Filing Info

• Accession Number: 01680435
• Record Type: Publication
• Files: TRIS
• Created Date: Sep 17 2018 10:32AM