A Constitutive Model to Simulate Cementation Effects in Sands

Andony Landivar Macias, Alessandro F. Rotta Loria

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Naturally cemented sands exhibit heightened mechanical properties compared to clean sands as a result of the action of crystal binders that strengthen the structure of such materials. Based on this observation, a myriad of ground improvement techniques such as bio-cementation and polymerization have been developed to artificially cement sands. Despite such techniques finding increasing applications, a handful of constitutive models remain available to capture their effects on the mechanics of sands. To advance the state of the art, this article describes a constitutive model for capturing the mechanics of cemented sands: SANISAND-C*. This work specifically focuses on a succinct overview of the mathematical formulation of such model and its application to the simulation of drained and undrained triaxial compression tests of cemented and clean sands. Results indicate that the model can realistically reproduce multiple effects caused by the natural or artificial cementation of sands, such as their increased strength and stiffness, changes in dilatancy, and the destructuration of cementation bonds upon mechanical loading. Accordingly, the model represents a powerful tool for computational analyses involving cemented sands for both scientific and engineering purposes.

Original languageEnglish (US)
Title of host publicationGeotechnical Special Publication
EditorsEllen Rathje, Brina M. Montoya, Mark H. Wayne
PublisherAmerican Society of Civil Engineers (ASCE)
Pages393-401
Number of pages9
EditionGSP 338
ISBN (Electronic)9780784484654, 9780784484661, 9780784484678, 9780784484685, 9780784484692, 9780784484708
DOIs
StatePublished - 2023
Event2023 Geo-Congress: Sustainable Infrastructure Solutions from the Ground Up - Geotechnics of Natural Hazards - Los Angeles, United States
Duration: Mar 26 2023Mar 29 2023

Publication series

NameGeotechnical Special Publication
NumberGSP 338
Volume2023-March
ISSN (Print)0895-0563

Conference

Conference2023 Geo-Congress: Sustainable Infrastructure Solutions from the Ground Up - Geotechnics of Natural Hazards
Country/TerritoryUnited States
CityLos Angeles
Period3/26/233/29/23

ASJC Scopus subject areas

  • Civil and Structural Engineering
  • Architecture
  • Building and Construction
  • Geotechnical Engineering and Engineering Geology

Fingerprint

Dive into the research topics of 'A Constitutive Model to Simulate Cementation Effects in Sands'. Together they form a unique fingerprint.

Cite this